Magnetic reed switches - schmersal.net · 2-6 Magnetic reed switches BN 85-5 10 80 30 30 30 30 65 20 15 10,5 6,5 s 140 • Thermoplastic enclosure • Square design • Slotted mounting

Introduction 2-2

BN 85-5 2-6

BN 85 2-8

BN 310 2-10

BN 325 2-12

BN 65 2-14BN 65/V 2-16

BN 650 2-18BN 650/V 2-20

BN 12 2-22BN 12/V 2-24

BN 120 2-26BN 120/V 2-28

BNS 260 2-30

AES 9107 2-32

Reference table technical data 2-34

Accessories 2-39

Switching distances 2-40

Actuating magnets 2-41

Magnetic switch technology 2-44

Magnetic reed switches

2

2-2


ApplicationMagnetic reed switches are often used to replace mechanically actuated limit switches with plungers, roller and turning levers and as important connecting element for non-contact limit switches. They can be regarded as a complement to the plunger, roller and tur-ning head-operated limit switches and as an important addition to non-contact proximity switches. They are preferably used where mechanically actuated limit switches no longer function satisfactorily due to unfavourable operating conditions such as high or low start-up speeds, high switching frequencies, strong dust or dirt influence, high humidity, chemical atmospheres or large fluctuations in operation intervals.

The magnetic reed switches consist of two units, the switch and the actuating magnet. The contacts of the switch are protected from dust, humidity and corrosion through the enc-losed glass tube. Magnetic reed switches thus have an extraordinarily high contact reliability. The enclosures are made of thermoplastic; the versions for the different applications are rectangular, cylindrical or flat. Magnetic reed switches are fitted with mounting holes, threa-ded bolts, screwed flanges or on C-rails. They are provided with a central fixing screw or slot-ted holes for the adjustment. BN 260 is highly insensitive to transverse misalignment.

Design and functionThere are normally open (NO), normally closed (NC) and bistable contacts; with some types, the switching conditions are indicated by LED. The switches are actuated with actuating ma-

gnets with and without enclosure.The switching distances are different depen-ding on the strength. In order to avoid mal-functions, the actuating planes are provided with symbols. Depending on the application, magnetic reed switches with pre-wired cable, cable entry or connectors are available. Pro-tection class is up to IP 67.

Technological backgroundThe switches of magnet reed switches tend to sticking, when the specified maximum current intensity is exceeded. Contact stik-king can also occur when very long connec-ting cables are used. To avoid this pheno-menon, compensation coils can be used.In the event of magnetic reed switches being fitted too close to one another, mutual in-terference can occur – this can be avoided by means of shielded plates. In the BN 85-5 and BN 325, these shielded plates are alrea-dy integrated in the enclosure.If magnetic reed switches are appropriately fitted and maintained, they can feature very long lifetimes. The non-contact, low-force operated switches are not subject to wear on the actuating surface either and therefore have an almost unlimited life. Similar to mechanical snap action switches, magnet reed switches have a hysteresis, i.e. their switch-on and switch-off point do not coincide.This feature is a result of the difference in the start and stop excitation of the reed contacts.

Voltage and current diagrams Magnetic reed switches can switch different currents with different voltages.As the switching delay is not uniform for each switch, these values are represented in the U-I diagrams. The X-axis represents the voltage, the Y-axis the corresponding current.

V

A

➅

➆

➇

➈

➄

➃

➂

➁

➀

2-3

Legend BN Switching


Actuating direction and switchingDepending on the version, magnetic reed switches can be actuated from different sides. For each type, the actuating direction between ma-gnet and switch and the recommended distance between these com-ponents are indicated with arrows. Furthermore, the switching diagram is represented with the switching behaviour in the different directions. These switching points are not identical due to the hysteresis.

In other words:Bistable contacts usually are only actuated with one magnetic pole (north or south). All other magnetic reed switches are ac-tuated with the north and the south pole.

S

1 NC contact with N-S actuating magnet

S

1 bistable contact with N actuating magnet

S

1 NO contact with N-S actuating magnet

S

1 bistable contact with S actuating magnet

BN: (non-contact) magnetic reed switchE: electromagnetP: magnet poleN: North (green)S: South (red)r: latching_2: non-encapsulated magnets: switching distance

If the magnet is installed onto a metal plate, the switching distance for the bistable contact increases.

Contact Contactopen closed

2-4


Overview

This table gives a general overview of the product range. The next pages include a detailed description of the individual components, as well as information about special versions.

➀ ➁ ➂ ➃ ➄ ➅

Magnetic reed switches BN 85-5 BN 85 BN 310 BN 325 BN 65 BN 65/V BN 650

Enclosure thermoplastic • • • • • • •

metal – – – – – – –

Form rectangular • • • • – – –

cylindrical – – – – • • •

flat – – • – – – –

Fixation mounting holes • • • – – – –

mounting on C-rail – • – – – – –

with 2 rear threaded bolts – – – • – – –

central mounting with screwed flange – – – – • • •

Adjustment central fixing screw – • – – – – –

slotted holes • – • – – – –

Actuation lateral – – • • • – •

frontal • • – – – • –

Contact variants NC – – • – • • •

NO – – • – • • •

bistable • • • • • • •

with LED • – – • – – –

Contacts number 1-5 1 1 1 1 1 1

Wiring pre-wired cable – • • • • • •

connector • – – • – – –

Protection class (max.) IP 30 40 67 67 67 67 67

Integrated shielding plate • – – • – – –

Switching current [A] 1 1 3 3 3 3 1

To be used as individual component • • • • • • •

Only in combination with AES 9107 – – – – – – –

Switching voltage (max.) [V] 12-60 60 250 250 250 250 250

Switching capacity (max.) [W] 30 30 120 120 120 120 30

Page 2-6 2-8 2-10 2-12 2-14 2-16 2-18

2-5


Overview

➅ ➆ ➇ ➈

BN 650/V BN 12 BN 12/V BN 120 BN 120/V BNS 260 Magnetic reed switches

• – – • • • Enclosure thermoplastic

– • • – – – metal

– – – – – • Form rectangular

• • • • • – cylindrical

– – – – – • flat

– – – – – • Fixation mounting holes

– – – – – – mounting on C-rail

– – – – – – with 2 rear threaded bolts

• • • • • – central mounting with screwed flange

– – – – – – Adjustment central fixing screw

– – – – – – slotted holes

– • – • – • Actuation lateral

• – • – • – frontal

• • • • • • Contact variants NC

• • • • • • NO

• • • • • – bistable

– – – – – –/• with LED

1 1 1 1 1 3 Contacts number

• • • • • • Wiring pre-wired cable

– – – – – • connector

67 67 67 67 67 67 Protection class (max.) IP

– – – – – – Integrated shielding plate

1 1 1 1 1 0,4 Switching current [A]

• • • • • – To be used as individual component

– – – – – • Only in combination with AES 9107

200 200 200 200 200 75 Switching voltage (max.) [V]

30 30 30 30 30 10 Switching capacity (max.) [W]

2-20 2-22 2-24 2-26 2-28 2-30 Page

2-6


BN 85-5

8010

30 30 30 30

65

20

1510,5 6,5

s

140

• Thermoplastic enclosure• Square design• Slotted mounting holes• Front actuation• Actuation surface and direction of actuation

marked by switch symbol• Bistable contact• 5 LED for indicating the switching condition• 5 reed contacts to clip on• Without bias magnet• Area signal• BP 7 actuating magnet required • Reciprocal switch function through rotating

the individual switching elements by 180°• Unused plugs can be filled with blank ele-

ments• With 10-pole plug-in connection• Includes 5 BN 85 units in one enclosure

Approvals

Ordering dataBN 85-5-➀

N° Insert Description

➀ LED on, when thecontact is opened (individual connection)

2031 LED on, when thecontact is closed (p-type, common voltage supply)

Technical dataStandards: IEC/EN 60947-5-2Design: squareEnclosure: glass-fibre reinforced

thermoplasticProtection class: IP 30 to

EN 60529Termination: Plug-in connector,

10-poleOperating principle: magneticSwitch status indicator: LEDActuating magnet: BP 7Switching voltage: 12 … 60 VDCSwitching current: max. 1 ASwitching capacity: max. 30 WDielectric strength: 400 VDCSwitching time “closing“: max. 2 msSwitching time “opening“: max. 0.07 msAmbient temperature: – 10 °C … + 75 ºCMechanical life: 1 billion operationsElectrical life: 500 million operations,

depending on loadResistance to shocks: 60 g sinusoidal

oscillationSwitching distances: min. 1 mm max. 14 mm

With mounting on ferromagnetic material:Average max. switching distance s: 14 mmmax. switching distance under unfavourable conditions smax: 11 mmmin. switching distance smin: 1 mmeffective switching distance snenn: 6 mm

With mounting on non-ferromagnetic material (e.g. plastic rails):Switching distance s: 0 … 9 mmEffective switching distance snenn: 5 mm

NoticeIncluded in delivery:• 2 Blank inserts• Unit without switch inserts

1-5 suitable BN 85-re switch inserts must be ordered separately!

Contact variants

1 bistable contact

S

NoticeThe NC or NO function depends on the direc-tion of actuation and the polarity of the actua-ting magnet.

The BP 7 actuating magnet is not included in delivery (see page 2-40).

2-7


Contact variants

BN 85-5

5K6

5K6

5K6

5K6

5K6

1 2 3 4 5 6 7 8 9 10

BN 85-5-2031

3 4

5K6

5K6

5K6

5K6

5K6

5 6 7 8 9 1021

Connector plugs must be ordered separately from the manufacturer.• Weidmüller: socket strip BL 5.08/10 SN OR,

ordering number 1113130• Phoenix-Contact: MSTB 2,5 HC/10-ST-5,08,

ordering number 1757093• Other manufacturers

2-8


BN 85 16,5

35 28

143

7,5

14

20

40

12

1000

7,5

0,7

81,5

Thermoplastic enclosure• Square design• Mounting holes• For mounting on C-rail• Through central fixing screw• Front actuation• Actuation surface and direction of actuation • marked by switch symbol Bistable contact• 1 reed contact to clip on• Selection of actuating magnets available• With pre-wired cable, cable length 1 m• Other lengths available on request• Inversion of the switching function by 180° • rotation

Approvals

Ordering dataBN 85-r-➀


For mounting on C-rail

➀ 1831-1 individual wire 2 x 0.75mm2 without screws

1831-2 individual wires 2 x 0.75mm2

with screws1824-1 non-metallic sheathed cable

2 x 0.25mm2 without screws1824-2 non-metallic sheathed cable

2 x 0.25mm2 with screwswith clamping feet and screw non-metallic sheathed cable

1824-3 2 x 0.25mm2 without screwse Spare part / switch insert

individual

Technical dataStandards: EN 60947-5-2Design: squareEnclosure: glass-fibre reinforced


EN 60529Termination: 2 individual wires

LiY 0.75 mm2, 1 m long

Operating principle: magneticSwitching voltage: max. 60 VAC/DCSwitching current: max. 1 ASwitching capacity: max. 30 WDielectric strength: 400 VDCSwitching time “closing“: max. 2 msSwitching time “opening“: max. 0.07 msBounce time: max. 0.2 msAmbient temperature: 0 °C ... + 75 °CMechanical life: 1 billion operationsElectrical life: 500 million operations,


oscillationSwitching distances: min. 2 mm max. 40 mm

Switching capacity1,0A

0,9

0,8

0,7

0,6

0,530 40 50 60

V

Contact variants1 bistable contact BN 85-rz with S magnet

S

s: Switching distance

NoticeThe NC and NO function depends on the direc-tion of actuation, the strength and the polarity of the actuating magnet.

The actuating magnets are not included in delivery.

For the selection of the actuating magnets, ple-ase use the table on page 2-40.

2-9


Actuating magnets

Part number

BN 85-rz

Switch travel

S

N

Contacts 1 bistable contact

Actuation type N or S

Actuating magnet

actuating distance [mm] s min. – max.

BP 6 2 – 12

BP 10 5 – 20

BP 2 x 10 6 – 27

BP 15 5 – 22

BP 2 x 15 7 – 28

BP 34 10 – 40

2-10


BN 310

88

78

4,5

0,5

7,5

6,5

7

3,5

2513

3

1000

• Contact variants: NC, NO and bistable contact Thermoplastic enclosure• Flat design• Slotted mounting holes• Lateral actuation• Actuation surface and direction of actuation • marked by switch symbol 1 reed contact• Area signal• Selection of actuating magnets available• With pre-wired cable, cable length 1 m• Other cable lengths available on request•

Approvals

Ordering dataBN 310-➀z


➀ 01 1 NC contact10 1 NO contactr 1 bistable contact



EN 60529Termination: cable H03VV-F,

2 x 0.75 mm2, cable length 1 m

Operating principle: magneticSwitching voltage: max. 250 VAC/DCSwitching current: max. 3 ASwitching capacity: max. 120 VA/WDielectric strength: > 600 VAC (50 Hz)Switching frequency: < 300 HzSwitching time “closing“: 0,3 ms - 1.5 msSwitching time “opening“: max. 0.5 msBounce time: 0.3 ... 0.6 msAmbient temperature: – 25 °C … + 75 ºCMechanical life: 1 billion operationsElectrical life: 1 million - 1 billion operations,

depending on loadResistance to shocks: 30 g / 11 msResistance to vibrations: 10 ... 55 Hz,

amplitude 1 mmRepeatability: ± 0,25 mm,

T = constantSwitching distances: min. 0 mm max. 30 mm

Switching capacity

3,0

2,5

2,0

1,5

1,0

0,5

024 80 120 150 220250 V

A

0,48


For the selection of the actuating magnets, see table on page 2-40.

Contact variants1 NC contact BN 310-01z with N-S magnet

S

1 NO contact BN 310-10z with N-S magnet

S

1 bistable contact BN 310-rz with N magnet

S

1 bistable contact BN 310-rz with S magnet

S


NoticeThe NC and NO function depends on the direction of actuation and the polarity of the actuating magnet.

When the switch and actuating magnet face each other, the colours must be correspon-ding.

The switches are to be mounted on iron with a non-magnetic layer of at least 20 mm.

2-11


Actuating magnets System components

8,5

73,5

10

25

88

78

18,5

13

ø 5

Spacer BN 31/33

Part number

BN 310-01z

BN 310-10z

BN 310-rz

Switch travel

S

N

Contacts 1 NC contact 1 NO contact 1 bistable contact

Actuation type N/S N/S S or N

Actuating magnet




non-encapsulated

BP 10 0 – 5 0 – 5 0 – 15

2 x BP 10 0 – 17 0 – 17 0 – 20

2 x BP 15/2 0 – 17 0 – 17 0 – 22

plastic encapsulated

BP 15 0 – 6 0 – 6 0 – 17

2 x BP 15 0 – 17 0 – 17 0 – 22

BP 34 5 - 20 5 - 20 15 - 30

Only for bistable contact r:If the magnet is installed onto a metal plate, the switching distance increases..

2-12


BN 325

9

M 4

85

824

30

2610

108

Thermoplastic enclosure• Flat design• Mounting with 2 threaded bolts• Lateral actuation• Actuation surface and direction of actuation • marked by switch symbol Contact: bistable contact• 1 reed contact• Selection of actuating magnets available• With pre-wired cable, cable length 1 m• other cable lengths or spade connectors • available upon request LED indicating the switching condition, suffix • “G“

Approvals

Ordering dataBN 325-r-➀


➀ Spade connector 4,8 mmand 1 additional shielding plate

1239 Spade connector 4,8 mm and2 additional shielding plates

1389 Spade connector 6,3 mm and2 additional shielding plates

1279 Cable outlet left and 2additional shielding plates

1279-2 Cable outlet right and 2additional shielding plates

G-1279 Cable outlet left and 2additional shielding platesand LED


thermoplasticProtection class: IP 00

IP 40 with insulated plug IP 67 with cable outlet and

additional shielding plate (ordering suffix -1279 and

-1297-2) to EN 60529Termination: spade connector 4.8 mm

(ordering suffix -1239)spade connector 6.3 mm

(ordering suffix -1389)cable outlet

(ordering suffix -1279 and -1279-2)

Operating principle: magneticSwitching voltage: max. 250 VACSwitching current: max. 3 ASwitching capacity: max. 120 VADielectric strength: > 600 VAC (50 Hz)Schaltgeschwindigkeit: max. 18 m/sSwitching frequency: < 300 HzSwitching time “closing“: max. 1.5 msSwitching time “opening“: max. 0.5 msBounce time: 0.3 ... 0.6 msAmbient temperature: – 25 °C … + 75 ºCMechanical life: 1 billion operationsElectrical life: 1 million - 1 billion operations,




Switching capacity

3,0

2,5

2,0

1,5

1,0

0,5

024 80 120 150 220250 V

A

0,48



Contact variants1 bistable contact BN 325-r with N magnet

S

1 bistable contact Bn 325-r with S magnet

S




shielding plate

2-13


System variants

9Ø 9

9

85

9,8

824

30

2610

M 4

Fe

3-15max. 5 max. 5

>30 >30

Max. switching distance with misalignment of the actuating magnet

>30 >30

55

3-15

Fe

Misalignment of two magnets without affecting the centre switch. Version represented with 2 shielding plates

Cable outlet left suffix -1279

Cable outlet right suffix -1279-2

Shielding plate on both sides

Actuating magnets

Part number

BN 325-rz

Switch travel

S

N

Contacts 1 bistable contact

Actuation type S or N

Actuating magnet

Actuating distance [mm] s min. – max.

non-encapsulated

BP 10 0 - 10

2 x BP 10 0 - 15

2 x BP 15/2 0 - 17


BP 15 0 - 12

BP 34 10 - 25

If the magnet is installed onto a metal plate, the switching distance increases..

2-14


BN 65

2224

537,5

6080

1000 103

Ø13

Ø20

Pg9

• Thermoplastic enclosure• Cylindrical design• Central mounting with screwed flange• Lateral actuation• Actuation surface and direction of actuation

marked by switch symbol• Contact variants: NC contact, NO contact

and bistable contact• 1 reed contact• Selection of actuating magnets available• With pre-wired cable , cable length 1 m• Other cable lengths available on request

Approvals




Technical dataStandards: IEC/EN 60947-5-2Design: cylindricalEnclosure: glass-fibre reinforced

thermoplasticMax. tightening torque

for A/F 22 screws max. 300 Ncm

Protection class: IP 67 to EN 60529

Termination: H03VV-F 2 x 0.75 mm2, cable length 1 m

Operating principle: magneticSwitching voltage: max. 250 VACSwitching current: max. 3 ASwitching capacity: max. 120 WDielectric strength: > 600 VAC (50 Hz)Switching speed: max. 18 m/sSwitching frequency: < 300 HzSwitching time “closing“: 0.3 ms - 1.5 msSwitching time “opening“: max. 0.5 msBounce time: 0.3 ... 0.6 ms

max. 3 msAmbient temperature: – 25 °C … + 75 ºCMechanical life: 1 billion operationsElectrical life: 1 million - 1 billion operations,


oscillationResistance to vibrations: 10 ... 55 Hz,



Switching capacity

3,0

2,5

2,0

1,5

1,0

0,5

024 80 120 150 220250 V

A

0,48



Contact variants


For NC and NO contacts, the colour symbols of magnet and switch must be arranged red on red and green on green.


s

1 NC contact BN 65-01z with N-S magnet

s


s


s


2-15


Actuating magnets for lateral actuation System components

173346

308

15

M 5

ø15

Terminal mounting H 15

30

10

1087,5

32,5 32,5

17,5 32,5

34105,5

18,52,5

ø13

Holder H1/1

ø13

24 11

16

27

2295

4,5

45

7812

Holder H2

Part number

BN 65-01z

BN 65-10z

BN 65-rz

Switch travel

S

N



Actuating magnet




non-encapsulated

BP 10 0 - 5 0 - 5 0 - 15

2 x BP 10 0 - 17 0 - 17 0 - 20

2 x BP 15/2 0 - 17 0 - 17 0 - 22


BP 15 0 - 6 0 - 6 0 - 17

2 x BP 15 0 - 17 0 - 17 0 - 20

BP 34 15 - 20 15 - 20 15 - 30

Only for bistable contact r:If the magnet is installed onto a metal plate, the switching distance increases

2-16


BN 65/V

2224

537,5

6080

1000 103

Ø13

Ø20

Pg9

• Thermoplastic enclosure• Cylindrical design• Central mounting with screwed flange• Frontal and lateral actuation• Actuation surface and direction of actuation

marked by switch symbol• Contact variants: NC contact, NO contact

and bistable contact• 1 reed contact• With pre-wired cable, cable length 1 m• Other cable lengths available on request• Area signal• Selection of actuating magnets available

Approvals

Ordering dataBN 65-➀z/V



Technical dataStandards: EN 60947-5-2Design: cylindricaEnclosure: glass-fibre reinforced

thermoplastic, Tightening torque for A/F 22 screws

max. 300 NcmProtection class: IP 67 to EN 60529Termination: cable H03VV-F 2 x 0.75 mm2

Operating principle: magneticSwitching voltage: max. 250 VACSwitching current: max. 3 ASwitching capacity: max. 120 VA/WDielectric strength: > 600 VAC (50 Hz)Switching speed: max. 18 m/sSwitching frequency: < 300 HzSwitching time “closing“: 0.3 ms - 1.5 msSwitching time “opening“: max. 0.5 msBounce time: 0.3 ... 0.6 ms

max. 3 msAmbient temperature: – 25 °C … + 75 ºCMechanical life: 1 billion operationsElectrical life: 1 million - 1 billion operations,


oscillationResistance to vibrations: 10 ... 55 Hz,

amplitude 1 mmRepeatability: ± 0.25 mm,


Switching capacity

3,0

2,5

2,0

1,5

1,0

0,5

024 80 120 150 220250 V

A

0,48

NC contact, NO contact, bistable contact

The actuating magnets are not included in deliveryFor the selection of the actuating magnets, see table on page 2-40.


Contact variants

Switching capacityFor bistable contacts, the opening or closing function depends on the direction of actuation and the polarity of the actuating magnet.


1 NO contact BN 65-10z/V with S magnet

1 NC contact BN 65-01z/V with S magnet

1 bistable contact BN 65-rz/V with N-S magnet

2-17

173346

308

15

M 5

ø15


30

10

1087,5

32,5 32,5

17,5 32,5

34105,5

18,52,5

ø13

Holder H1/1

ø13

24 11

16

27

2295

4,5

45

7812

Holder H2


Actuating magnets for front actuation System components

Part number

BN 65-01z/V BN 65-10z/V

BN 65-rz/V

Switch travel

Contacts 1 NC contact 1 NO contact

1 bistable contact N/S-actuated 1 bistable contact S/N-actuated

Actuation type S N/S

Actuating magnet



non-encapsulated

BP 10 0 - 5 –

2 x BP 10 0 - 10 0 - 3


BP 15 0 - 6 –

BP 34 0 - 20 0 - 15

Only for bistable contact r:If the magnet is installed onto a metal plate, the switching distance increases.

2-18


BN 650

2224

537,5

6080

1000 103

Ø13

Ø20

Pg9

• Thermoplastic enclosure• Cylindrical design• Central mounting with screwed flange• Lateral actuation• Contact variants: NC contact, NO contact


Approvals






EN 60529Termination: LiYY 2 x 0,25 mm2,

cable length 1 mOperating principle: magneticSwitching voltage: max. 200 VACSwitching current: max. 1 ASwitching capacity: max. 30 VA/WDielectric strength: 580 VSwitching frequency: < 300 HzSwitching time “closing“: 0.35 msSwitching time “opening“: 30 msBounce time: 0.15 msAmbient temperature: – 25 °C … + 70 ºCMechanical life: min. 108 operationsElectrical life: 1 million - 1 billion operations,




Switching capacityA

1,0

0,6

0,38

0,250,20,15

30 50 80 120 150 200 V



Contact variants



Execution as BN 650-11z(r) under preparation.


s


s


s


s


2-19

173346

308

15

M 5

ø15

30

10

1087,5

32,5 32,5

17,5 32,5

34105,5

18,52,5

ø13

ø13

24 11

16

27

2295

4,5

45

7812




Holder H1/1

Holder H2

Part number

BN 650-01z

BN 650-10z

BN 650-rz

Switch travel

S

N



Actuating magnet




non-encapsulated

BP 10 0 - 5 0 - 5 0 - 15

2 x BP 10 0 - 19 0 - 19 0 - 22

2 x BP 15/2 0 - 19 0 - 19 0 - 24


BP 15 0 - 7 0 - 7 0 - 19

2 x BP 15 0 - 19 0 - 19 0 - 22

BP 34 16 - 22 16 - 22 16 - 35

Only for bistable contact r:If the magnet is installed onto a metal plate, the switching distance increases.

2-20


BN 650/V

2224

537,5

6080

1000 103

Ø13

Ø20

Pg9

• Thermoplastic enclosure• Cylindrical design• Central fixing with screwed flange• Frontal actuation• Contact variants: NC contact, NO contact


Approvals




Technical dataStandards: EN 60947-5-2Design: cylindricalEnclosure: glass-fibre reinforced

thermoplasticProtection class: IP 67 to EN 60529Termination: LiYY 2 x 0,25 mm2,

cable length 1 mOperating principle: magneticSwitching voltage: max. 200 VACSwitching current: max. 1 ASwitching capacity: max. 30 VA/WDielectric strength: 580 VSwitching speed: max. 18 m/sSwitching frequency: < 300 HzSwitching time “closing“: 0,35 msSwitching time “opening“: 30 msBounce time: 0,15 msAmbient temperature: – 25 °C … + 70 ºCMechanical life: min. 108 operationsElectrical life: 1 million - 1 billion operations,




Switching capacityA

1,0

0,6

0,38

0,250,20,15

30 50 80 120 150 200 V


The actuating magnets are not included in delivery.For selecting the actuating magnets, please use the tables from page 2-40.

Contact variants

Switching capacityFor bistable contacts, the opening or closing function depends on the direction of actuation and the polarity of the actuating magnet.


Execution as BN 650-11z(r) /V under prepara-tion.





2-21

173346

308

15

M 5

ø15


ø13

24 11

16

27

2295

4,5

45

7812

Holder H1/1

30

10

1087,5

32,5 32,5

17,5 32,5

34105,5

18,52,5

ø13

Holder H2



Part number

BN 650-01z/V BN 650-10z/V

BN 650-rz/V

Switch travel


1 bistable contact N-actuated 1 bistable contact S-actuated

Actuation type S or N N/S

Actuating magnet



non-encapsulated

BP 10 0 - 5 –

2 x BP 10 0 - 11 0 - 3


BP 15 0 - 7 –

BP 34 0 - 22 0 - 16


2-22


BN 12

4

Ø10,7

1000

55

71

M12x117

3 29

• Metal enclosure• Cylindrical design• Central fixing with screwed flange M12• Lateral actuation• Contact variants: NC contact, NO contact


Approvals




Technical dataStandards: IEC/EN 60947-5-2Design: cylindricalEnclosure: MetalProtection class: IP 67 to


cable length 1 mOperating principle: magneticSwitching voltage: max. 200 VACSwitching current: max. 1 ASwitching capacity: max. 30 VA/WDielectric strength: 580 VSwitching frequency: < 300 HzSwitching time “closing“: 0.35 msSwitching time “opening“: 30 msBounce time: 0.15 msAmbient temperature: – 25 °C … + 70 ºCMechanical life: min. 108 operationsElectrical life: 1 million - 1 billion operations,




Switching capacityA

1,0

0,6

0,38

0,250,20,15

30 50 80 120 150 200 V



Contact variants





s


s


s


s


2-23



Part number

BN 12-01z

BN 12-10z

BN 12-rz

Switch travel

S

N



Actuating magnet




non-encapsulated

BP 10 0 - 5 0 - 5 0 - 15

2 x BP 10 0 - 19 0 - 19 0 - 22

2 x BP 15/2 0 - 19 0 - 19 0 - 24


BP 15 0 - 7 0 - 7 0 - 19

2 x BP 15 0 - 19 0 - 19 0 - 22

BP 34 16 - 22 16 - 22 16 - 35 Only for bistable contact r:If the magnet is installed onto a metal plate, the switching distance increases..

15

M 5

8

30Ø12

3346

17


2-24


BN 12/V

4

Ø10,7

1000

55

71

M12x117

3 29

• Metal enclosure• Cylindrical design• Central fixing with screwed flange M12• Lateral or frontal actuation• Contact variants: NC contact, NO contact and

bistable contact• reed contact• with pre-wired cable, cable length 1 m• Other cable lengths available on request• Selection of actuating magnets available

Approvals




Technical dataStandards: IEC/EN 60947-5-2Design: cylindricalEnclosure: metalProtection class: IP 67 to


length 1 mOperating principle: magneticSwitching voltage: max. 200 VACSwitching current: max. 1 ASwitching capacity: max. 30 VA/WDielectric strength: 580 VSwitching frequency: < 300 HzSwitching time “closing“: 0,35 msSwitching time “opening“: 30 msBounce time: 0,15 msAmbient temperature: – 25 °C … + 70 ºCMechanical life: min. 108 operationsElectrical life: 1 million - 1 billion operations,




Switching capacityA

1,0

0,6

0,38

0,250,20,15

30 50 80 120 150 200 V

NC, NO or bistable contact

The actuating magnets are not included in delivery.For selecting the actuating magnets, please use the tables from page 2-40.

Contact variants

Switching capacityThe NC and NO function depends on the direction of actuation and the polarity of the actuating magnet.


Execution as BN 12 -11z(r) /V under prepara-tion.

1 NO contact BN 12-10z/V with S actuating magnet

1 NC contact BN 12-01z/V with S actuating magnet

1 bistable contact BN 12-rz/V with N-S actuating magnet

2-25



Part number

BN 12-01z/V BN 12-10z/V

BN 12-rz/V

Switch travel



Actuation type S oder N N/S

Actuating magnet



non-encapsulated

BP 10 0 - 5 –

2 x BP 10 0 - 11 0 - 3


BP 15 0 - 7 –

BP 34 0 - 22 0 - 16


15

M 5

8

30Ø12

3346

17


2-26


BN 120

174

M12x1

Ø10,7

1000

51

71

3 29

• Thermoplastic enclosure• Cylindrical design• Central fixing with screwed flange M12• Lateral actuation• Contact variants: NC contact, NO contact


Approvals







cable length 1 mOperating principle: magneticSwitching voltage: max. 200 VACSwitching current: max. 1 ASwitching capacity: max. 30 VA/WDielectric strength: 580 VSwitching speed: max. 18 m/sSwitching frequency: < 300 HzSwitching time “closing“: 0.35 msSwitching time “opening“: 30 msBounce time: 0.15 msAmbient temperature: – 25 °C … + 70 ºCMechanical life: min. 108 operationsElectrical life: 1 million - 1 billion operations,




Switching capacityA

1,0

0,6

0,38

0,250,20,15

30 50 80 120 150 200 V



Contact variants

NoticeThe NC and NO function depends on the direc-tion of actuation, the strength and the polarity of the actuating magnet.




s


s


s


s


2-27



Part number

BN 120-01z

BN 120-10z

BN 120-rz

Switch travel

S

N



Actuating magnet




non-encapsulated

BP 10 0 - 5 0 - 5 0 - 15

2 x BP 10 0 - 19 0 - 19 0 - 22

2 x BP 15/2 0 - 19 0 - 19 0 - 24


BP 15 0 - 7 0 - 7 0 - 19

2 x BP 15 0 - 19 0 - 19 0 - 22

BP 34 16 - 22 16 - 22 16 - 35


15

M 5

8

30Ø12

3346

17


2-28


BN 120/V

174

M12x1

Ø10,7

1000

51

71

3 29

• Thermoplastic enclosure• Cylindrical design• Central fixing with screwed flange M12• Lateral and frontal actuation• Actuating surface marked• Contact variants: NC contact, NO contact and

bistable contact• reed contact• With pre-wired cable, cable length 1 m• Other cable lengths available on request• Selection of actuating magnets available

Approvals




Technical dataStandards: EN 60947-5-2Design: cylindricalEnclosure: glass-fibre reinforced

thermoplasticProtection class: IP 67 to EN 60529Termination: LiYY 2 x 0,25 mm2

Operating principle: magneticSwitching voltage: max. 200 VACSwitching current: max. 1 ASwitching capacity: 30 VA/WDielectric strength: > 200 VAC (AC/DC)Switching frequency: < 300 HzSwitching time “closing“: 0,35 msSwitching time “opening“: 30 msBounce time: 0,15 msAmbient temperature: – 25 °C … + 70 ºCMechanical life: min. 108 operationsElectrical life: 1 million - 1 billion operations,




Switching capacityA

1,0

0,6

0,38

0,250,20,15

30 50 80 120 150 200 V


The actuating magnets are not included in delivery.For the selection of the actuating magnets, see table on page 2-40.

Contact variants

Switching capacityThe NC and NO function depends on the direction of actuation and the polarity of the actuating magnet.


Execution as BN 120-11z(r) /V under prepara-tion.




2-29



Part number

BN 120-01z/V BN 120-10z/V

BN 120-rz/V

Switch travel



Actuation type S or N N/S

Actuating magnet



non-encapsulated

BP 10 0 - 5 –

2 x BP 10 0 - 11 0 - 3


BP 15 0 - 7 –

BP 34 0 - 22 0 - 16


15

M 5

8

30Ø12

3346

17


2-30


BNS 260

13

6

7

36

26

4

19

22

¤4,5

Thermoplastic enclosure• Rectangular, flat, compact design• Enclosure with mounting holes• Insensitive to axial misalignment• Insensitive to soiling• Lateral actuation• Actuating surface marked• Contact variants: NC contact, NO contact• Indication of the switching conditions by LED• With pre-wired cable, length 1 m• Other cable lengths available on request• Without bias magnet• Safety-monitoring module AES 9107 for • safety class 3 requiredActuating magnet BPS 260 required• Control category 3• Guard door monitoring for fireman elevators•

Approvals

under preparation

Ordering data

Technical dataStandards: IEC 60947-5-3, BG-GS-ET-14Design: squareEnclosure: glass-fibre reinforced

thermoplasticProtection class: IP 67 to EN 60529Termination: Boflex cable or

M8 connectorCable: 4 x 0.25 mm2

With signalling contact: 6 x 0.25 mm2

Connector version: M8 x 1, 4-poligWith signalling contact: M8 x 1, 6-polig

Operating principle: magneticActuating magnet: BPS 260, codedControl category: up to 4 to EN 954-1

in combination with an appropriate

safety-monitoring module AES 9107Classification: up to PDF-M to

IEC 60947-5-3 in combination

with an appropriate safety-monitoring module

Sao: 5 mmSar: 15 mmSwitch status indicator: LED, only with

ordering suffix GSwitching voltage without LED: max. 75 VDCSwitching voltage with LED: max. 24 VDCSwitching current without LED: max. 400 mASwitching current with LED: max. 10 mASwitching capacity without LED: max. 10 VASwitching capacity with LED: max. 240 mWAmbient temperature: – 25 °C … + 70 ºCStorage and transport temperature: – 25 °C … + 70 ºCMax. Switching frequency: 5 HzResistance to shocks: 30 g / 11 msResistance to vibrations: 10 ... 55Hz,

amplitude 1 mm

Notice

Contact variantsBNS 260-11z(G)

BK S13WH S21

S14 BUS22 BN

BNS 260-11/01z(G)

GY S13

WH S31GN S21

S14 PKS22 YES32 BN

BNS 260-11/10z(G)

GY S13

WH S33GN S21

S14 PKS22 YES34 BN

NoticeContact symbols are shown for the closed condition of the safety guard.

The contact configuration for versions with or without LED is identical.

Contacts S21-S22 must be integrated in the safety circuit.

LED on, when the contact is closed.Actuator BPS 260 is not included in delivery.

BNS 260-11/➀z➁-➂➃


➀ Signalling contacts:No signalling contact

01 1 NC contact10 1 NO contact

➁ without LEDG with LED

➂ CableST integrated connector

➃ R right-side versionL left-side version

(see image above)

31

42

2-31

13

6

36

26

19

22

¤4,5

BPS 260 Size indications

5

22

19

¤ 4,5

3626

Spacer BNS 260

BPS 260-1, LHS representation

BPS 260-2, LHS representation

Cable with connector

3 BU 5 GY

2 WH 1 BN

4 BK

6 PK

6-pole

3 BU 1 BN

4 BK 2 WH

4-pole

NoticePin configuration of the versions with inte-grated connector indicated between brackets


System components

Ordering dataLHS door hinge Ordering suffix -LRHS door hinge Ordering suffix -R

Actuating magnet

Actuator and sensor on one mounting surface BPS 260-1Actuator fixed 90° turned with regarded to the sensor BPS 260-2

System components

Ordering dataCable with connector PVC with latch, 6-pole With straight connector, 2 m cable 1184342 5 m cable 1184343 10m cable 1184344With angled connector, 2 m cable 1184345 5 m cable 1184346 10m cable 1184347PVC with latch, 4-pole With straight connector, 2 m cable 1184355 5 m cable 1184356 10m cable 1184357With angled connector, 2 m cable 1184358 5 m cable 1184359 10m cable 1184360

Contact variantsBNS 260-11z(G)

S13S21

S14(3)(1)

(4)(2)S22

BNS 260-11/01z(G)

S13

S31S21

S14(3)(1)(5)

(4)

(6)(2)S22

S32

BNS 260-11/10z(G)

S13

S33S21

S14(3)(1)(5)

(4)

(6)(2)S22

S34

31

42

35

21

4

6

3,5

3510

554

2

3

Actuating curveThe actuating curve also applies when the actuator is turned by 90°.

2-32


AES 9107

BG test certificate• 1 enabling path• Monitoring of a chain of BNS 260-11z • magnetic safety sensorsI nternal protection of the enabling path with • fine fuse 2 AEnclosure: protection class IP 65•

Technical dataStandards: IEC/EN 60204-1/VDE 0113 Part 1; EN 954-1; EN 1088; DIN EN 81-1/-2; Directive 95/16/ECEnclosure: ABSMounting: 4 mounting holesProtection class: terminals IP 65 to IEC/EN 60529/DIN VDE 0470-1Ue: 24 VDC ± 15 % inkl. 10 % residual rippleIe: 0,1 APower consumption: 2,8 VAInputs: S13-14 / S21-22:Input resistance: S13: 3 kž; S21: 1 kž Max. cable length: 1000 m with 0,75 mm2 cableOutputs: 1 enabling path with 2 series-wired NO contacts, 2 A fine fuseUtilisation category: AC-15; DC-13Ie/Ue: 2 A / 250 VAC; 2 A / 24 VDCSwitching voltage: max. 250 VACLoad current: max. 2 ASwitching capacity: max. 500 VAEMC rating: to EMC DirectiveMax. Switching frequency: 1 HzResistance to vibrations: 10 … 55 Hz/amplitude 0,35 mm ± 15% at the regulation pointResistance to shocks: 30 g/11 msAmbient temperature: 0 °C … + 55 °CStorage and shipping temperature: – 25 °C … + 70 °C

60

80 66

160

146

Ordering dataAES 9107

Approvals

H F

2-33

Notice• AES for monitoring one safety guard up to

control category 3 to EN 954-1• Monitoring of one safety guard with a magne-

tic safety sensor BNS 260.• If one or two external relays or contactors

are used to switch the load, the system can then only be classified in control category 3 to EN 954-1, if exclusion of the fault “Failure of the external contactors” can be substan-tiated and documented, e.g. by using reliable down-rated contactors. A second contactor leads to an increase in the level of security by redundant switching to switch the load off.

Wiring diagram

NoticeThe wiring diagram is represented with the guard doors closed and in de-energised condition.


K1

K2

A1

14A2

S22 X1 X2S14S13 S21 13

+ 24 VDC

AES 9107

0 V

BK BU

WH

BN

BN

BN

WH

WH

BK

BK

BU

BU

BU

WH

BNS 260-11z

BNS 260-11z

BNS 260-11z

2-34


BN 85-5 BN 85 BN 310

Standards IEC 60947-5-2 IEC 60947-5-2 IEC 60947-5-2

Design square square square

Enclosure glass-fibre reinforced thermoplastic glass-fibre reinforced thermoplastic glass-fibre reinforced thermoplastic

Protection class IP 30 IP 40 IP 67

Termination

10-pole plug-in connector

2 individual wires LiY 0,75 mm2, cable length 1 m

H03VV-F 2 x 0,75 mm2, cable length 1 m

Switch status indicator LED switch open, -2031: switch closed

– –

Switching voltage 12 … 60 VDC max. 60 VAC/DC max. 250 VAC/DC

Switching current max. 1 A max. 1 A max. 3 A

Switching capacity max. 30 W max. 30 W max. 120 W

Dielectric strength max. 400 VDC max. 400 VDC > 600 VAC

Switching frequency – – < 300 Hz

Switching time “closing“ 2 ms 2 ms 0,3 … 1,5 ms

Switching time “opening“ 0,07 ms 0,07 ms < 0,5 ms

Bounce time < 0,2 ms < 0,2 ms 0,3 … 0,6 ms

Ambient temperature – 10 °C … + 75 °C 0 °C … + 75 °C – 25 °C … + 75 °C

Mechanical life min. 109 min. 109 min. 109

Electrical life 5 x 108, depending on load 5 x 108, depending on load 106 … 109, depending on load

Resistance to shocks 60 g, sinusoidal oscillation 60 g, sinusoidal oscillation 30 g / 11 ms

Resistance to vibrations – – 10 … 55 Hz

Repeatability – – ± 0,25 mm

Actuating magnet BP 7 see page 2-40 see page 2-40

max. Switching distance 14 mm 40 mm 30 mm

2-35


BN 325 BN 65 BN 65/V

IEC 60947-5-2 IEC 60947-5-2 IEC 60947-5-2 Standards

square, flat cylindrical cylindrical Design

glass-fibre reinforced thermoplastic glass-fibre reinforced thermoplastic glass-fibre reinforced thermoplastic Enclosure

IP 00, IP 40 mounted with insulated plug

IP 67 IP 67 Protection class

Spade connector 4.8 mm or 6.3 mm or cable outlet1 m

H03VV-F2 x 0,75 mm2, A03VV-F3 x 0,75 mm2, cable length 1 m

H03VV-F2 x 0,75 mm2, A03VV-F3 x 0,75 mm2, cable length 1 m

Termination

– – – Switch status indicator

max. 250 VAC max. 250 VAC max. 220 VAC, 150 VDC Switching voltage

max. 3 A max. 3 A max. 3 A Switching current

max. 120 W max. 120 W max. 120 VA/W Switching capacity

> 600 VAC > 600 VAC > 600 VAC Dielectric strength

< 300 Hz < 300 Hz < 300 Hz Switching frequency

< 1,5 ms 0,3 … 1,5 ms 0,3 … 1,5 ms Switching time “closing“

< 0,5 ms < 0,5 ms < 0,5 ms Switching time “opening“

0,3 … 0,6 ms 0,3 … 0,6 ms, max. 3 ms 0,3 … 0,6 ms, max. 3 ms Bounce time

– 25 °C … + 75 °C – 25 °C … + 75 °C – 25 °C … + 75 °C Ambient temperature

min. 109 min. 109 min. 109 Mechanical life

106 … 109, depending on load 106 … 109, depending on load 106 … 109, depending on load Electrical life

50 g / 11 ms 30 g, sinusoidal oscillation 15 g, sinusoidal oscillation Resistance to shocks

10 … 55 Hz 10 … 55 Hz 10 … 55 Hz Resistance to vibrations

± 0,25 mm ± 0,25 mm ± 0,25 mm Repeatability

see page 2-40 see page 2-40 see page 2-40 Actuating magnet

25 mm 30 mm 20 mm max. Switching distance

2-36


BN 650 BN 650/V BN 12

Standards IEC 60947-5-2 IEC 60947-5-2 IEC 60947-5-2

Design cylindrical cylindrical cylindrical

Enclosure glass-fibre reinforced thermoplastic glass-fibre reinforced thermoplastic metal

Protection class IP 67 IP 67 IP 67

Termination

LiYY 2 x 0,25 mm2, cable length 1 m



Switch status indicator – – –

Switching voltage max. 200 VAC max. 200 VAC, 150 VDC max. 200 VAC

Switching current max. 1 A max. 1 A max. 1 A

Switching capacity max. 30 VA/W max. 30 VA/W max. 30 VA/W

Dielectric strength max. 580 V max. 580 V max. 580 V

Switching frequency < 300 Hz < 300 Hz < 300 Hz

Switching time “closing“ 0,35 ms 0,35 ms 0,35 ms

Switching time “opening“ 30 ms 30 ms 30 ms

Bounce time 0,15 ms 0,15 ms 0,15 ms

Ambient temperature – 25 °C … + 70 °C – 25 °C … + 70 °C – 25 °C … + 70 °C

Mechanical life min. 108 min. 108 min. 108

Electrical life 106 … 109, depending on load 106 … 109, depending on load 106 … 109, depending on load

Resistance to shocks 30 g / 11 ms 30 g / 11 ms 30 g / 11 ms

Resistance to vibrations 10 … 55 Hz 10 … 55 Hz 10 … 55 Hz

Repeatability ± 0,25 mm ± 0,25 mm ± 0,25 mm

Actuating magnet see page 2-40 see page 2-40 see page 2-40

max. Switching distance 35 mm 22 mm 35 mm

2-37


BN 12/V BN 120 BN 120/V

IEC 60947-5-2 IEC 60947-5-2 IEC 60947-5-2 Standards

cylindrical cylindrical cylindrical Design

metal glass-fibre reinforced thermoplastic glass-fibre reinforced thermoplastic Enclosure

IP 67 IP 67 IP 67 Protection class




Termination:

– – – Switch status indicator

max. 200 VAC, 150 VDC max. 200 VAC max. 200 VAC Switching voltage

max. 1 A max. 1 A max. 1 A Switching current

max. 30 VA/W max. 30 VA/W max. 30 VA/W Switching capacity

max. 580 V max. 580 V max. 580 V Dielectric strength

< 300 Hz < 300 Hz < 300 Hz Switching frequency

0,35 ms 0,35 ms 0,35 ms Switching time “closing“

30 ms 30 ms 30 ms Switching time “opening“

0,15 ms 0,15 ms 0,15 ms Bounce time

– 25 °C … + 70 °C – 25 °C … + 70 °C – 25 °C … + 70 °C Ambient temperature

min. 108 min. 108 min. 108 Mechanical life

106 … 109, depending on load 106 … 109, depending on load 106 … 109, depending on load Electrical life

30 g / 11 ms 30 g / 11 ms 30 g / 11 ms Resistance to shocks

10 … 55 Hz 10 … 55 Hz 10 … 55 Hz Resistance to vibrations

± 0,25 mm ± 0,25 mm ± 0,25 mm Repeatability

see page 2-40 see page 2-40 see page 2-40 Actuating magnet

22 mm 35 mm 22 mm max. Switching distance

2-38


BNS 260

Standards IEC 60947-5-3, BG-GS-ET14

Design rectangular with rounded corners

Enclosure glass-fibre reinforced thermoplastic

Protection class IP 67

Termination

Boflex 4 x 0,25 mm2 cable length 1 m;

Connector M8 x 1, 4-pole

Switch status indicator LED (optional)

Switching voltage 24 VDC, 75 VDC

Switching current max. 400 mA

Switching capacity max. 10 VA

Dielectric strength –

Switching frequency 5 Hz

Switching time “closing“ –

Switching time “opening“ –

Bounce time –

Ambient temperature – 25 °C … + 70 °C

Mechanical life –

Electrical life –

Resistance to shocks 30 g / 11 ms

Resistance to vibrations 10 … 55 Hz bei 1 mm

Repeatability –

Actuating magnet BPS 260-1, BPS 260-2

max. Switching distance 5 mm

2-39


Spacer BN 31/338,5

73,5

10

25

88

78

18,5

13

ø 5

• for BN 310• for mounting on ferromagnetic material

Bracket H1/1

30

10

1087,5

32,5 32,5

17,5 32,5

34105,5

18,52,5

ø13

• for BN 65, BN 650• metal bracket with 2 elastic bearing blocks• guarantees high resistance to vibrations

Buckling coil KS 1

10

10

29,5

ca. 100 11

9

37

M16 x 1,527

• for cable lengths up to 100 m• connecting cable H05V-K 1 mm2, cable

length 100 mm• the buckling coil is to be wired in series with

the reed contact• for 230 V

Terminal fixing H15

173346

308

15

M 5

ø15

• for BN 65 and BN 650• material: Thermoplastic

Bracket H2

ø13

24 11

16

27

2295

4,5

45

7812

• for BN 65, BN 650• material: thermoplastic

Buckling coil KS 2

10

10

29,5

ca. 100 11

9

24

M16 x 1,527

• for cable lengths up to 200 m or 2 x 100 m• connecting cable H05V-K 1 mm2, cable

length 100 mm• the buckling coil is to be wired in series with

the reed contact• consists of 2 coils• for 230 V

Spacer BNS 260

5

22

19

¤ 4,5

36

26

• for BNS 260

2-40

Selection table: Magnetic reed switches

Switching distances

Actuating magnet

BN 85-5 BN 85 BN 310 BN 325

N or S N or S

NC contactNO contact

N/S

Bistable contactS or N S or N

Page 2-6 Page 2-8 Page 2-10 Page 2-10 Page 2-12

non-encapsulatedBP 6 S 2 - 12

BP 7 S 6 - 22

BP 8 S 2 - 10

BP 10 0 - 5 0 - 15 0 - 10

2 x BP 10 6 - 27 0 - 17 0 - 20 0 - 15

2 x BP 15/2 0 - 17 0 - 22 0 - 17

plastic encapsulatedBP 15 5 - 22 0 - 6 0 - 17 0 - 12

2 x BP 15 7 - 28 0 - 17 0 - 22

BP 34 10 - 40 5 - 20 15 - 30 10 - 25

BP 310-1S 0 - 10

BP 310-2S 0 - 15

BP 310-1N 0 - 10

BP 310-2N 0 - 15

Actuating magnet

BN 65 BN 65/V BN 650, 12, 120 BN 650/V, 12/V, 120/V


N/S

Bistable contactS or N


S or N

Bistable contact

N/S


N/S

Bistable contactS or N


S or N

Bistable contact

N/S

Page 2-14 Page 2-14 Page 2-16 Page 2-16 Page 2-18 Page 2-18 Page 2-20 Page 2-20

non-encapsulatedBP 10 0 - 5 0 - 15 0 - 5 0 - 5 0 - 15 0 - 5

2 x BP 10 0 - 17 0 - 20 0 - 10 0 - 3 0 - 19 0 - 22 0 - 11 0 - 3

2 x BP 15/2 0 - 17 0 - 22 0 - 19 0 - 24

plastic encapsulatedBP 15 0 - 6 0 - 17 0 - 6 0 - 7 0 - 19 0 - 7

2 x BP 15 0 - 17 0 - 19 0 - 22

BP 34 15 - 22 15 - 30 0 - 20 0 - 15 16 - 22 16 - 35 0 - 22 0 - 16

Actuating magnet

BNS 260

Page 2-30

plastic encapsulatedBPS 260 0 - 5

2-41

12

90°

SN

ø4,3

ø22,5

BP 15 plastic encapsulated

88

78

25 73,5

18,5

13

3

4,5

ø5


5,3

17

SN90°

ø 34


5

1,8

NS90°

ø15

ø3,3

BP 6 non-encapsulated

2,5

9

90°

S N

ø4,5

ø14


7,7

NS90°

11,8

3,3

ø

ø


10

90°

ø18,5

ø4,3

ø8S N


10

90°

S

ø4,3

ø20

BP 15/2 non-encapsulated


Actuating magnets

Ordering datanon-encapsulated, N-S BP 6non-encapsulated, N-S BP 7non-encapsulated, N-S BP 8

Actuating magnets

Ordering datanon-encapsulated, N-S BP 10non-encapsulated, N-S BP 15/2

Actuating magnets

Ordering dataplastic encapsulated, N-S BP 15plastic encapsulated BP 310-1N

BP 310-1SBP 310-2NBP 310-2S

plastic encapsulated, N-S BP 34

2-42

Magnetic switches and their actuating magnetsThe descriptions “N-S magnet” and “N- magnet” or “S- magnet“ basi-cally refer to the same type of magnet. The difference is made by the mounting position:

• In an N-magnet, the green North Pole is located closer to the switch. The red South Pole is located on the turned aside side.

• In an S-magnet, the red South Pole is located closer to the switch. In this case, the green North Pole is located on the turned aside side.

• The N-S-magnet is perpendicularly passed by the switch in longitu-dinal direction. In this way, the distance of the North and South Pole to the switch is identical. Depending on the mounting direction, the North Pole or the South Pole is approaching the switch first.

S

N

As a uniform position of the switching magnet with regard to the switch is required, the colours of the switch and the actuating magnet must be corresponding when they face each other: red (S) to red (S) and green (N) to green (N).

NC and NO contactsHere, N/S magnets are used. Actuation is possible from three sides: parallel, perpendicular and frontal.

Bistable contact (r)The actuation is only possible in longitudinal direction; the magnet is laterally passed by the switch. The magnet must be fitted as North or South Pole. Transversely to the switch axis or on approach, no swit-ching function is triggered. If the magnet is installed onto a metal plate, the indicated switching distance increases.The frontal actuation (V) is only possible with N-S magnets.

Actuation / Switch type

NO or NC Bistable (r)

Lateral N/S N or S

Frontal N or S N/S

Actuation lateral parallel or perpendicular

only perpendicularly in longitudinal direction by

the switch

Frontal actuation enabled enabled


Magnetic switches and actuating magnets

N-pole

S-pole

N-S-pole

Example Bistable contact with actuation by North Pole:• If the switching magnet is passed by the switch in longitudinal direc-

tion from the left to the right, the contact is closed.• If the switching magnet continues in the same direction, the contact

remains closed (bistable function)• If the switching magnet is returned in the opposite direction, the con-

tact is opened.• The switch remains opened (bistable function)

The switching function is inversed when S-pole magnets are used.

Position of the magnet with regard to the switch

N-Pol S-Pol

Left open closed

Right closed open

Direction of movement of the magnet with regard to the switch

N-Pol S-Pol

Base position open closed

Left à right closes opens

Extended motion to the right remains closed remains open

Return right ß left opens closes

Extended motion to the left remains open remains closed

2-43

Around the clock

Always there for you, the Online Catalogue at: www.schmersal.com

2-44


Magnetic switch technologyMagnetic reed switches – General des-criptionMagnetic reed switches are often used to replace mechanically actuated limit switches with plungers, roller and turning levers and as important connecting element for non-contact limit switches. They can be regarded as a com-plement to the plunger, roller and turning head-operated limit switches and as an important addition to non-contact proximity switches. They are preferably used where mechanically actuated limit switches no longer function sa-tisfactorily due to unfavourable operating con-ditions such as high or low start-up speeds, high switching frequencies, strong dust or dirt influence, high humidity, chemical atmosphe-res or large fluctuations in operation intervals.The magnetic reed switches consist of two units, the switch and the actuating magnet. The reed contacts of the magnetic switches are filled with nitrogen.The contacts are melted into the glass structu-re and coated with precious metal in the area of the contact points. The air gap between the contacts amounts to only 0.2 to 0.3 mm, so that the magnetic force required for the swit-ching process remains very low. The contacts are protected from gas, humidity and corrosion through the enclosed glass tube. Magnetic reed switches thus have an extraordinarily high contact reliability.

Contact typesThe contact type is determined by installation and exact measurement of the bias magnets. There are

NO contact (normally open)

NC contact (normally closed)

bistable contact

The bias magnets are adjusted so that the exact centre position of the switch points is guaranteed. This adjustment is always made in the same interval with a test magnet, speci-fically chosen for this purpose, so that the ex-changeability of equivalent switching elements is guaranteed. After the adjustment has been completed, the reed contact and the bias ma-gnet might be fixed together with glue and cast with an elastic filling material.

Actuating magnetsFor actuating the switch, permanent magnets with and without enclosure are used. Depen-ding on the switch type, a specific actuating magnet must be chosen for lateral actuation. For NC or NO contacts, an actuating magnet with N-S pole is used, for bistable contacts an actuating magnet with N or S pole. The ma-gnet material used is non-ageing and does not

loose its magnetism through external magnetic fields. The switch point accuracy is tempera-ture-dependent: the magnetic force decreases with increasing temperatures and increases with decreasing temperatures. However, a permanent change in the range of – 30 °C up to + 90 °C is not to be expected.

FunctionsNO contactIf the contacts are magnetized by an ap-proaching and thus influencing (permanent or electro) magnet, they will attract each other when a specific pull-in force is exceeded. As the gap reduces during the closing pro-cess, the magnetic force increases, which causes the contact to close by snap action. The opening occurs in the same way, when a specific dropout value is not attained. The small gap from approx. 0.25 mm and the small dimensions result in extremely good values as switching and bounce time are regarded. The response and dropout time amount up to approximately 0.3 to 1.5 ms, depending on the magnetic force; the bounce time is less than 0.6 ms. The bias magnet of the NO contact prevents double switching, even for the smal-lest switching distances. The bias magnets require a precise positioning of the actuating magnets with regard to the switch, i.e. with matching colour symbols red on red and green on green.

N-S

==

NO contact

N S

N S

Combined effect of the magnetic field lines with a NO contact with N-S actuating magnets.

NC contactThe integrated bias magnet for this switch type is so strongly rated that the contacts are closed. By means of the opposite poling of the bias magnets to the actuating magnets, the approaching actuating magnet triggers the opening of the contacts.The switching magnets and the switch must be arranged in the prescribed manner, i.e. red on red and green on green. The field line diagrams for both switch types, NO contact and NC contact, however show

that actuation is possible from three directions and that even a direction change of 90° will provide a flawless functioning of the switch.

N-S

==

NC contact

NS

N S

Combined effect of the magnetic field lines with a NC contact with N-S actuating magnets.

Bistable contact This type of switch is obtained by an exact ra-ting of the bias magnets.The force of these magnets on the reed con-tact is tuned so that it lies between the pull-in and the dropout values of the reed contact. In order to facilitate the tuning and to obtain a safe switching function, special reed contacts with a large difference between the pull-in and the dropout values are used. The contact will remain open or closed without the influence of the actuating magnet. Prior to mounting, the desired contact function – NC contact or NO contact – can be established by actuation with an actuating magnet. The actuation, the clo-sing or the opening of the contacts, is carried out by moving the actuating magnets past the switch in longitudinal – and only in longitudinal – direction.If, for example, the actuating magnet (N pole) is moved past the switch in longitudinal direction from the left to the right, it will finally land in a position in which the magnetic fields of the actuating magnets and the bias magnets are mutually increased, i.e. the field lines run in one direction in the vicinity of the contact tongues. Through this field reinforcement, the pull-in value of the reed contact is exceeded, the contacts tongues attract each other and the contact is closed.Should the actuating magnets continue in the same direction, the magnetic field will become increasingly weaker and finally become ineffec-tive to the switch.As the force of the bias magnets however ex-ceeds the dropout value of the reed contact, the contact remains closed. If the actuating magnet returns back, so that its centre point goes beyond the switch, it reaches an area where the magnetic fields of

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the actuating magnet and the bias magnets mutually weaken each other in the area of the contact tongues, i.e. the field lines run oppo-site. The dropout value of the reed contact is not attained and the contact is opened. The bias magnets alone are not capable of closing the contact tongues, if the actuating magnet is moved out of the area of the switch, as their force lays below the pull-in value of the reed contact. The switch remains open. For this type of switch, faultless functioning can only be obtained through a lateral passing of the N or S actuating magnets. No switching function will be obtained when the actuating magnet is approached transverse to the switch axis or upon proximity. A reversal of the switching function (right = open, left = closed) is obtained with this switch through a different poled magnet (S pole).

N

==

Bistable contact

N

N

S

Combined effect of the magnetic field lines with a bistable contact with N magnet.

S

==

Bistable contact

N

S

S

Combined effect of the magnetic field lines with a bistable contact with S magnet.

Front actuationThe BN 65 V and BN 85 switches can be ac-tuated from the front. The switches with “NO” and “NC” contact types are laterally actuated with an N-S poled magnet. All switches are marked on the same point with colour symbols to show the correct pairing and actuating di-rection of the actuating magnets. The switches must be arranged with red on red and green on green. Actuation from the front is only possible with an S-magnet. Therefore, there is a red label with directional arrows on the face side. Switches of the “bi-stable contact” type can be actuated laterally with an N- or S-poled magnet, depending on the function. The colour-coded symbols on the side of the switch also indicate the actuating direction.The front actuation of “bistable contacts“ can only be carried out with an N-S magnet in the direction stated on the symbol label on the face side. By rotating the N-S magnet (magnet axis) by 180°, the bistability is changed to the opposite direction.

N S

S

Front actuation

Buckling coilsContact welding can occur when using longer cables, from 25 m. In order to avoid such wel-ding, buckling coils have been developed for different lengths. KS1 includes a 1-pole coil and is suitable for cable lengths up to 200m. KS2 consists of 2 coils and is suitable for cable lengths up to 100m or, in case of series wiring of both coils, up to 200m. The buckling coils are wired in series with the reed contacts.

Leistungs-kapazität

Schaltrohr

Kompensationsspule

Last

L1

N

Cable

capacity

Buckling coil

Reed tube

Load

Buckling coils wired in series with the reed tube.

Resistance to vibrationsAlthough the adjustment of the bistable con-tact switch requires very high precision in com parison to the NO contact and NC contact switches, these components are extraordinarily vibration resistant. If the switch is excited by the actuating magnets, the switching condi-tion will not be altered even by considerable vibrations. Heavy shock loads however must be avoided. With too high a load of this kind, magnetic reed switches can become inopera-

tive because of the permanent deformation of the contacts.

Mechanical lifeIt must be ensured that the meticulously tuned units are not damaged by overload during installation or testing. Magnetic reed switches tend to weld when the maximum stated current is exceeded. Although they are able to operate after being separated, they definitely will have lost their accuracy and could furthermore have changed from NC to NO contact. If magnetic reed switches are protected against overload, they have long electrical life. The non-contact functioning, low-force actuated switches are not subject to wear and therefore have a prac-tically unlimited life.

Switching hysteresisMagnetic reed switches, like mechanical snap action switches, have a switching hysteresis, i.e. the operating and release points do not coincide. This feature results from the diffe-rence of the pull-in and dropout excitation of the reed contacts.

Mounting instructionsa) IronMagnetic reed switches have a magnetic ope-rating principle. When mounted on or in the proximity of iron, the magnetic principle can be influenced. BN 65 switches therefore must be mounted on iron with a non-magnetic layer of at least 20 mm. The BN 85 and BN 85-5 on the other hand, can be directly mounted on iron.

b) Electrical wired When electrical wires are laid parallel to the switch, a minimum distance of 50 mm must be maintained, in order to exclude interference.In the frequently occurring arrangement of units next to one another, it must be ensured that sufficient distance is maintained. Depen-ding on the size of the switching magnets, un-wanted actuation of the adjacent switch could occur. An effective remedy is achieved with shielding plates, located between the switches. In this case, it must be noted that the iron shield absorbs a portion of the magnet field lines and that the maximum switching distance is decreased. In the BN 310, these shielding plates are integrated in the enclosure.BN 85-5 includes five BN 85 units in one en-closure. The shielding plate is integrated in the enclosure.


Magnetic switch technology

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Note

Documents

Magnetic reed switches - schmersal.net · 2-6 Magnetic reed switches BN 85-5 10 80 30 30 30 30 65 20 15 10,5 6,5 s 140 • Thermoplastic enclosure • Square design • Slotted mounting