Spring-Operated Brake BFK458 - Casa sueca LENZE CATALOGO... · Spring-Operated Brake BFK458 12 Federkraftbremse BFK458 en 07/2003 Turning, lifting, moving – Lenze spring-operated

Lenze moditorque – a modular system

Spring-Operated Brake BFK458

No matter which drive solution you imagine, we make your dreams cometrue.

True to our slogan (one stop shopping)

we offer you a complete program of

electronic and mechanical drive systems

which is distinguished by reliability and

efficiency.

The scope of our program includes

frequency inverters, speed controllers, servo

controllers, variable-speed drives, gearboxes

and motors, as well as clutches and brakes.

Many well-known companies use Lenze products

in various applications

465 469

Product Key BFK458-òòò

Friction plate

Flange

Mountingflange(Doublebrake)

Centring flange(Tacho flange)

SealHub

Rotor

Complete statorBasic module N

Plug screw

Shaftseal

Complete statorBasic module E

Handrelease

Size

06, 08, 10, 12, 14, 16, 18, 20, 25

Stator design

E – adjustable (brake torque can be reduced using

adjuster nut)

N – not adjustable

Uncoded:

Supply voltage, hub bore, options

B F K 4 5 8 - ò ò ò

Product group brakes

Product family spring-operated brakes

Type

Size

Design

The Lenze quality standards for development,

material, selection, production and assembly mean

that the new spring-operated brakes fulfil the

highest requirements. These electromagnetically

released, spring-operated brakes can be used in all

cases where movable masses have to be braked in

the shortest possible time or have to be hold in a

defined position.

The braking force is provided by compression

springs. This means that the frictional brake torque

is produced in the non-current state, i.e. also in the

event of a supply failure. The brakes are released

electromagnetically.

The new BFK458 range replaces the spring-

operated brake types 14.448 / 14.449 and 14.450.

The main components of the new modular system

consists of the modules E (adjustable brake torque)

and N (brake torque not adjustable). This system

offers flexibility by combining the basic modules

with further modular elements to cover the widest

possible range of applications. This catalogue will

assist you in selecting and ordering your spring-

operated brake fast and easily.

You will find in this catalogue:

˘ Spring-operated brakes in nine sizes

˘ Electrical accessories

˘ Calculation example

˘ Order form

˘ Manufacturer’s Declaration and EC Declaration

of Conformity

The modular system for all applications:

˘ Brake motors

˘ Cranes

˘ Storage technology

˘ Industrial trucks

˘ Wood machining equipment

˘ Stage machinery, especially hoists

˘ Vehicles for the disabled

˘ Automation technology

˘ Controlled drives

˘ Escalators

˘ Gates

BFK458 the compact modular system

Lenze Introduction

Thus, Lenze is the competent partner

for your application. Lenze is not only a sup-

plier for single components but

also offers solutions for complete drive

systems including planning, execution and

commissioning.

Furthermore, a worldwide service and

distribution network allows a qualified

customer advisory service on the job and a

fast and extensive after sales service.

Our quality assurance system for design,

production, sales and service is certified

according to DIN ISO 9001 : 2000.

Our customers set the standards for

measuring the quality of our products.

Our task is to meet your requirements, since

customer orientation as a Lenze principle

demands the best quality.

See for yourself.

A worldwide service –

Our team of experts provides reliable and

professional assisteance.

7Federkraftbremse BFK458 en 07/2003

Explanation of Symbols 9

Product information 10

Principle of operation 11

Application examples 12

9/10

Technical DataBrake torques 13Basic module E/N + flange + hand release 14Basic module N + centring flange 15Basic module N + mounting flange + basic module N 16Ratings 17Operating times 18Installation/Life 19

AccessoriesHand release/Flange/Friction plate/Centring flange/Mounting flange/Seal 20Brake cover and microswitch 21Microswitch and terminal box 22Bridge rectifiers and half wave rectifiers 23/24Possible installations 25Connecting diagrams 26Selection table 27

Selection Basic information 28Calculation example 29

Order Form 30

Manufacturer´s Declaration and Declaration of Conformity 32/33

Contents Spring-Operated Brake BFK458

8 Federkraftbremse BFK458 en 07/2003

Explanation of Symbols


Symbols and definitions used:

P [kW] Power

MK [Nm] Rated brake torqueML [Nm] Load torqueMreq [Nm] Required brake torqueMa [Nm] Deceleration torque∆n0 [min-1] Initial relative speed of the brake

JL [kgm2] Moment of inertia of all driven parts referred to the shaft to be braked

t1 [s] Engaging time, t1 = t11 + t12t2 [s] Disengaging time

(Time from the beginning of the torquereduction to 0.1 MKis reached)

t3 [s] Slipping time(Time during which there is a relative motion between input and output with brake engaged)

t11 [s] Delay time(Time from switching on the voltage tothe beginning of the torque rise)

t12 [s] Torque rise time

K Safety factorQ [J] Calculated friction work per operationQperm [J] Max. permissible friction work per

operationSh [h-1] Operating frequency, that is the number

of periodical brakingsSlü [h-1] Rated air gap

Product informationSpring-Operated Brake BFK458


Product information

Efficient, complete range˘ nine sizes˘ standard voltages 24 V, 96 V, 103 V, 170 V, 180 V, 190 V,

205 V˘ graduated torques from 2-600 Nm˘ short delivery times for the complete range because of

optimized logistics˘ enclosure IP54 depending to the application

conditions˘ CSA-CUS design as standard

Versatile˘ modular design for almost all applications˘ replacement product for the 14.448 and 14.450 series

Torque transmission˘ by friction in dry running

Immediately ready to operate˘ preset air gap, simple and fast mounting˘ the rated torques are achieved by a special machining of

the friction faces already after a few operations withoutrunning-in procedure

˘ fixed bearing not required at the brake side

Long life˘ the insulation class F (155°C) ensures a long life of the

winding˘ the brakes are dimensioned for 100 % duty time

(current applied to the brake)

Low maintenance˘ long, low-wear rotor/hub connection with proven

evolvent toothing˘ low-wear, asbestos-free friction linings˘ air gap must be checked depending on the friction work

Reliable˘ the continually high product quality is based on the

certified quality assurance system according to ISO 9001and ISO 14001

˘ manufacturing and testing according to VDE 0580

Options˘ hand release for the manual release is available for all

sizes; direction of release and mounting at both sides(exception: Tacho brake)

˘ low-noise designs˘ different types of corrosion protection and the

enclosure˘ air gap or wear monitoring by microswitch

(as from size 12)˘ new: Monitoring of hand release (see page 22)˘ special voltages and bores on request

Principle of operationSpring-Operated Brake BFK458


Spring-operated brakes BFK458 are brakes with two friction surfaces. By means of several pressure springs the brake friction is generated when no current is applied.The brakes are electromagnetically released. While braking,the rotor (3) which is axially movable on the hub (4), ispressed against the counter friction face (6) by means ofthe springs (2) via the armature plate (1). In case of braking,

an air gap slü occurs between the armature plate and thestator (7). To release the brake, the coil of the stator (7) isexcited by means of DC current.

The resulting magnetic flux causes the armature plateto be pulled towards the stator. Thus, the rotor is released.The brake torque can be reduced via the adjuster nut (8) forthe basic module E.

Basic module E + rotor + hub + flange

6

1

5

4

3

9

7

28

Basic module N + rotor + hub

1

3

4

2

9

7

Principle of operation

1 = Armature plate2 = Springs3 = Rotor4 = Hub5 = Shaft6 = Flange7 = Stator8 = Adjuster nut9 = Adjustment tubeslü = Air gap

slü

slü

Application examplesSpring-Operated Brake BFK458


Turning, lifting, moving – Lenze spring-operated brakes support crane movements Corrosion-resistant designs and different types of enclosuresfor spring-operated brakes used in cranes.

Doors and gates moved by LenzeSpring-operated brakes with manual release monitoring bymicro switches and electromagnetic clutches ensure safe operation of door drives and automatic doors.

Curtain calls for Lenze brakesDouble spring-operated brakes in low-noise design asredundant brake system are used in stage technology.

Technical DataBrake Torques


Size 06 08 10 12 14 16 18 20 25

Torque reductionper detent position [Nm] 0.2 0.35 0.8 1.3 1.7 1.6 3.6 5.6 6.2

Size 06 08 10 12 14 16 18 20 25

80 E

1,5 E 3.5 N/E 25 N/E 35 N/E 65 N/E 115 N/E 175 N/E

2 N/E 4 E 7 N/E 14 N/E 35 N 45 N/E 80 N/E 145 N/E 220 N

2,5 N/E 5 N/E 9 N/E 18 N/E 40 N/E 55 N/E 100 N/E 170 N/E 265 N/E

3 N/E 6 N/E 11 N/E 23 N/E 45 N/E 60 N/E 115 N/E 200 N/E 300 N/E


4 N/E 8 N/E 16 N/E 32 N/E 60 N/E 80 N/E 150 N/E 260 N/E 400 N/E


5 E 10 E 20 E 40 E 75 N/E 100 N/E 185 N/E 315 N/E 490 N/E

5,5 E 11 E 23 N/E 46 N/E 80 N/E 105 N/E 200 N/E 345 N/E 530 N/E

6 N/E 12 N/E 125 N/E 235 N/E 400 N/E 600 N/E

Basic module E, brake torque reduction

Holding brake with emergency stop operation(slümax ca. 1.5 x slü)

Operating brake(slümax ca. 2.5 x slü)

Standard brake torque

Depending on the individual application, the graduated torques listed in the table are available. A pole shim (brass film) must be placed between stator and armature

For the basic module E, the brake torque can be reduced by turning the detended adjuster nut in the stator. Theadjuster nut can be unscrewed until the maximumdimension h1max (see table on page 14).

Take into consideration that engagement times and disengagement times change depending on the braketorque. The reduction of the torque is independent of thechoosen brake torque.

N ... Brake torque for design N (without adjuster nut)E ... Brake torque for design E (with adjuster nut)

Rated torques [Nm], related to therelative speed∆n = 100 min-1

plate if you want to achieve short operating times withlow torques.

d143) d15

3) d16 di da

4xM4 37.7 3x4.5 40 60

4xM5 49 3x5.5 47 77

4xM5 54 3x6.6 66 95

4xM5 64 3x6.6 70 115

4xM6 75 3x9 80 124

4xM6 85 3x9 104 149

4xM8 95 4x94) 129 174

4xM10 110 4x114) 148 206

4xM10 140 6x11 199 254

Size b dJ7 1) dH72) d1 d2 d3H7 d5 d6j7 d7 d8 d9

H8 d10 d11 d12 d13Pilot Standard

06 88 10 10/11/12/14/15 3xM4 72 25 91 87 87 52 24 31 8 13 9.6

08 106.5 10 11/12/14/15/20 3xM5 90 32 109 105 105 60 26 41 8 13 9.6

10 132 10 11/12/14/15/20 3xM6 112 42 134 130 130 68 35 45 10 13 12

12 152 14 20/25 3xM6 132 50 155 150 150 82 40 52 10 13 12

14 169 14 20/25/30 3xM8 145 60 169 165 165 92 52 55 12 24 14

16 194.5 15 25/30/35/38* 3xM8 170 68 195 190 190 102 52 70 12 24 14

18 222 20 30/35/40/45 6xM8 196 75 222 217 217 116 62 77 14 24 15.5

20 258 25 35/40/45/50 6xM10 230 85 259 254 254 135 72 90 14 24 16.5

25 302 30 40/45/50/55/60/65/70 6xM10 278 115 307 302 302 165 85 120 16 24 18.4

Technical DataBasic Module E/N + Flange + Hand release


Dimensions in mm

slü

thickness of friction plate: 1.5 mm (Sizes 06-16)

Size h h1 h1 h2 h3 h4 h5 h5 h6 h7 h8 h9 l l15) slü a b6)

min. max. Standard max.

06 36.3 39.3 43.25 1 6 15.8 107 – 54.5 23 32.8 56.3 18 400 0.2 25° 12°

08 42.8 46.8 50.8 1.5 7 16.3 116 – 63 23 41.3 65 20 400 0.2 25° 10°

10 48.4 52.4 55.9 2 9 27.4 132 – 73.8 23 42.4 77.8 20 400 0.2 25° 9°

12 54.9 58.9 67.53 2 9 29.4 161 – 85 23 47.4 88.5 25 400 0.3 25° 10°

14 66.3 71.3 77.3 2 11 33 195 – 98 32 50 101.5 30 400 0.3 25° 9°

16 72.5 77.5 85.5 2.25 11 37.5 240 – 113 32 53.5 116 30 600 0.3 25° 10°

18 83.1 89.1 97.09 2.75 11 41.1 279 3947) 124 32 59.1 128.5 35 600 0.4 25° 9°

20 97.6 104.6 114.6 3.5 11 47.6 319 4167) 146 32 68.6 149.5 40 600 0.4 25° 10°

25 106.7 115.7 127.7 4.5 12.5 57.7 445 5017) 170 32 88.7 175.5 50 600 0.5 25° 10°

1) Pilot bore without keyway2) Standard keyway acc. to DIN 6885/1 P9, selection of the shaft diameter depending on the load type (see operating instructions)

* bore diameter Ø 38, Keyway acc. to DIN 6885/3 P93) For the size 06-12, the bores are added on customer request4) The thread in the threading surface is offset by 30° in reference to the center axle of the manual release lever

5) Cable length 7) Recommended lever length for 1.5 MK Recommended ISO shaft tolerances up to Ø 50 mm = k66) Hand release angle tolerance + 3° over Ø 50 mm = m6

Technical DataBasic Module N + Centring Flange


Dimensions in mm

1) Use fixing screws acc. to DIN 6912 2) Cable length3) Hand release can be mounted as option according to the drawing on page 144) Keyway acc. to DIN 6885/3-P95) For the size 06-12, the bores are added on customer request

Brake suitable for the assembly of a speed or angle sensor

Size h h1 h2 dH7 d11) d2 d3 d4

5) d5H7 d6

h7 d7H7 d8 di da l l1

2) l2 slümax.

06 42.3 36.3 7 15 3xM4 72 37.7 4xM4 25 95 40 98 40 60 18 400 2 0.2

08 49.8 42.8 8.5 20 3xM5 90 49 4xM5 32 115 50 116 47 77 20 400 2 0.2

10 57.4 48.4 11 20 3xM6 112 54 4xM5 42 140 60 141 66 95 20 400 2 0.2

12 63.9 54.9 11 25 3xM6 132 64 4xM5 50 162 60 165 70 115 25 400 2 0.3

14 76.5 65.5 13 30 3xM8 145 75 4xM6 60 177 80 181 80 124 30 400 2 0.3

16 83.5 72.5 13.25 384) 3xM8 170 85 4xM6 68 204 85 206 104 149 30 600 2 0.3

18 94.1 83.1 13.75 45 6xM8 196 95 4xM8 75 233 90 237 129 174 35 600 2 0.4

20 108.6 97.6 14.5 50 6xM10 230 110 4xM10 85 271 90 274 148 206 40 600 2 0.4

25 118.2 105.7 17 70 6xM10 278 140 4xM10 115 322 120 324 199 254 50 600 2 0.5

Technical DataBasic Module N + Mounting Flange + Basic Module N


Dimensions in mm

1) Cable length2) Keyway acc. to DIN 6885/3-P9Hand release as option

Double brake (double brake torque), suitable for stage machinery and lots of other application fields

Noise-reduced designs

The required noise reduction for stage machinery andvarious other application examples can be optionally achieved by 2 measures:

1. Impact noise reduction of the armature plateThe operating noise can be minimised by using O-rings,which are installed between the magnet housing and armature plate, acting as a limit stop damper.

2. Noise-reduced aluminium rotorRattling noises, which can occur e.g. at load changes in therotor-hub connection, are reduced by using a rotor withplastic sleeve.

Size dH7 d1 d2 d5H7 d6j7 di da H h h1 h2 h3 l l1

1) l2 slümax.

06 15 3xM4 72 25 87 40 60 84.6 36.3 12 1 48.3 18 400 8.7 0.2

08 20 3xM5 90 32 105 47 77 97.6 42.8 12 1.5 54.8 20 400 9.8 0.2

10 20 3xM6 112 42 130 66 95 109.8 48.4 13 2 61.4 20 400 12.7 0.2

12 25 3xM6 132 50 150 70 115 125.8 54.9 16 2 70.9 25 400 13.1 0.3

14 30 3xM8 145 60 165 80 124 148 65.5 17 2 82.5 30 400 13.1 0.3

16 382) 3xM8 170 68 190 104 149 165 72.5 20 2.25 92.5 30 600 16.4 0.3

18 45 6xM8 196 75 217 129 174 186.2 83.1 20 2.75 103.1 35 600 17.5 0.4

20 50 6xM10 230 85 254 148 206 215.2 97.6 20 3.5 117.6 40 600 17.8 0.4

25 70 6xM10 278 115 302 199 254 236.4 105.7 25 4.5 130.7 50 600 21.5 0.5

Size Reference Brake torque at ∆n0 [min-1] max. speed Rated torque [%] ∆n0max

at ∆n=100min-1 1500 3000 max. [min-1][%]

06 100 87 80 65 12400

08 100 85 78 66 10100

10 100 83 76 66 8300

12 100 81 74 66 6700

14 100 80 73 67 6000

16 100 79 72 66 5300

18 100 77 70 66 4400

20 100 75 68 66 3700

25 100 73 66 66 3000

Technical DataRatings


Brake torques depending on the speed and permissible limit speeds

Ratings

1) Coil power at 20°C in Watt, difference up to + 10% is possible, dependingon the selected connecting voltage.

2) The friction lining is dimensioned such that the brake can be readjusted atleast five times.

The wear increases with higher speeds

Size P1) slü max slü max max. min.2) JPlastic rotor JAluminium rotor Mass[20 °C] Operating brake Holding brake adjustment Rotor [kgcm2] [kgcm2] stator

thickness[W] [mm] [mm] [mm] [mm] Cpl. [kg]

06 20 0.5 0.3 1.5 4.5 0.11 0.15 0.75

08 25 0.5 0.3 1.5 5.5 0.34 0.61 1.2

10 30 0.5 0.3 1.5 7.5 2.0 2.1

12 40 0.75 0.45 2.0 8.0 4.5 3.5

14 50 0.75 0.45 2.5 7.5 6.3 5.2

16 55 0.75 0.45 3.5 8.0 15 7.9

18 85 1.0 0.6 3.0 10.0 29 12

20 100 1.0 0.6 4.0 12.0 73 19.3

25 110 1.25 0.75 4.5 15.5 200 29.1

Size Brake torque Maximum permissible Transition operating time [ms] 2)

Rated value at friction work per one operating for slüNom ∆n = 100min-1 operation only frequency Engaging DC switching

MK1) QE Shü Disengaging[Nm] [J] [h-1] t11 t12 t1 t2

06 4 3000 79 15 13 28 45

08 8 7500 50 15 16 31 57

10 16 12000 40 28 19 47 76

12 32 24000 30 28 25 53 115

14 60 30000 28 17 25 42 210

16 80 36000 27 27 30 57 220

18 150 60000 20 33 45 78 270

20 260 80000 19 65 100 165 340

25 400 120000 15 110 120 230 390

Technical DataOperating Times


The operating times are valid for DC switching at nominalair gap slü and coil at nominal temperature. They are average values which may vary depending on the methodof rectification and the air gap slü.

2520

1816 14

12

1008

06

The engaging time t1 for AC switching is approx. ten timeshigher than for DC switching.

Sh [h-1]

105

104

103

102

Qp

erm

in [

J]

Size

Permissible friction work Qperm

depending on the operating frequency Sh

1) Minimum brake torque for run-in friction pairs.2) Operating times apply to 205 V DC.

AC switching

DC switchingt11 = Delay timet12 = Rise time

of brake torquet1 = Engaging timet2 = Disengaging timet3 = Slipping time

Torque-time diagram related to the excitation voltage

Rate

d t

orq

ue

Exci

tati

on

Time

Time

1 10 102 103 104

10

Technical DataInstallation/Life


Installation

If no suitable opposing surface is available, a mountingflange or a friction plate (6) can be used.˘ fit the hub (4) onto the shaft (5) and secure axially˘ now fit rotor (3) onto hub (4)˘ insert the fixing screws (10) through the holes provided

in the stator and fit those to the counter friction surface˘ remove transport clips˘ check air gap slü˘ the friction surfaces must be kept from oil and grease˘ connect electrically

Life

The brake has to be adjusted when reaching slümax. The necessary friction work depends on a number of factors, namely the inertia to be braked, the braking speed,the operating frequency and thus the temperature at thefriction faces. Therefore, no general statement can be madeabout the friction work available until adjustment, which isvalid for all operating conditions. For more detailed infor-mation, please indicate the specific operating conditions. (Please contact the manufacturer).

slü

Hand releaseThe hand release serves to release the brake manually. Itcan also be retrofitted. The hand release goes back to itsbase position automatically after operation. The releasescrews are carried in ball joints and are only tensioned. Theair gap „s“ is the distance between the armature plate (1)and the washer (15). The dimension „s“ must be maintained when assembling the hand release.

Caution:Even with a reduced rated torque, a readjustment of theworking air gap reaching the dimension slümax is necessary for reasons of safety.

FlangeIf no suitable friction surface is available, the mountingflange can be used, which at the same time is able to carrythe seal.

Accessories


Friction plateIf plain machined counterface is available but cannot beused as a friction surface, for example in the case of aluminium, we recommend to use a friction plate whichcan also be combined with a seal. The friction plate ismade of non-corroding material. It can be supplied up tosize 16.

Centring flange (Tachometer brake)The basic module N combined with a centring flange is suitable for the assembly of a tachogenerator.

Mounting flange (double brake)The mounting flange can be used to adapt a second basicmodule to the basic module N; the resulting double brakeis suitable for stage machinery or other applications withincreased safety requirements.

SealThe seal prevents to a large extent exit or penetration ofdust, humidity, dirt, etc. into the braking area. The seal ispulled over the brake and inserted into the grooves provided. If no suitable groove is available at the outputside, we recommend to use a mounting flange or a frictionplate.

SealCentringflange

Flange Mountingflange

Hand release Friction plate(Size 06-16)

slü

Size slü +0,1 s +0,1-0,05

(mm) (mm)

06

08 0.2 1

10

12

14 0.3 1.5

16

180.4 2

20

25 0.5 2.5

Size 12 14 16 18 20 25

Dimensions x 13 11.5 11 7 * *

Overall radius r 80.5 88.5 99 112.5 * 155

* No projection

AccessoriesBrake Cover and Microswitch


Microswitch

The microswitch is used when a monitoring of the air gapis required and is available for the sizes 12-25. If the armature plate (1) is in contact with the stator (7), themotor contactor is controlled via the microswitch. Themotor can only start, if the brake is released. If the maxi-mum air gap slümax is reached, the stator no longer attractsthe armature plate. The motor contactor is not activated,the motor does not start.

The air gap slü of the basic module E and the basicmodule N can be readjusted. The microswitch can also be adjusted such that a signal is output before the wearreserve is reached (wear monitoring).

As an option, a cover can be mounted to the basic module E and N to protect the brake from water and dust(enclosure acc. to IP65). This design is not available in conjunction with a hand release.

1) Recommended recess length on the motor endshield

Mounting of the microswitch to basic module E

Basic module E, N + cover = encapsulated design

Dimensions in mm

Size d1 d2 d3H8 d4 d5 h h1 h2 h31)

06 135 120 98 4x5.5 M16 x 1.5 55 28 16.5 3

08 155 142 118 4x5.5 M20 x 1.5 61 34 20 3

10 185 166 143 4x5.5 M20 x 1.5 72 39 21 3

12 205 192 163 4x6.6 M20 x 1.5 82 42 23 3

14 225 212 183 4x6.6 M20 x 1.5 92 51 24 3

16 250 236 208 4x6.6 M20 x 1.5 98 52 25 3

18 285 268 238 4x6.6 M20 x 1.5 115 60 29 3

20 330 314 283 4x9 M20 x 1.5 131 69 35 3

25 390 368 328 4x9 M20 x 1.5 142 78 40 3

AccessoriesMicroswitch and terminal box


Terminal box

The connecting cables can easily be integrated into higher-level control systems via the terminal box (brake sizes 12-25) to achieve different wirings (three inputs/outputs).2/4-pole terminal strips, half wave and bridge rectifiers anda microswitch can be integrated into the terminal box.

Door drives, for instance, are provided with brakes withhand release and microswitch for hand release monitoring. In this case, the hand release must make itpossible to drive the door also in manual operation to thedesired position, e.g. with a crank. The manual operationmust be detected via a microswitch. Its operating signalmust be combined with the motor control, so that startingof the motor and as a result possible injuries of the operator can be prevented. The microswitch for hand release monitoring is a built-on option.

The fixing bracket is screwed on the magnet housing ormagnet part via the bores on the backside. The fixingbracket makes it possible to mount a microswitch. Bothdirections of release, towards and away from the motor can be realised through different fixing brackets andadjustments of the microswitch.

Microswitch for hand release monitoring

Terminal box shifted by 30°in the illustration

Dimensions in mm

The terminal box is mounted to the spring-operated brakeusing fixing brackets and screws as shown in the drawing.With the assembly kit you can select the mounting angleaccording to your requirements.

Size 12 14 16 18 20 25

b -5 5.5 12.5 23 37.5 45.5

h 122 130 142 155 174 198

r 126 134 146 158.5 177 201

Type Coil voltage Coil PowerU Pmax

14.198.00.01 24 V – 50 V 110 W

14.198.00.02 50 V – 120 V 110 W

14.198.00.03 120 V – 200 V 110 W

14.198.00.04 200 V – 250 V 110 W

AccessoriesBridge Rectifiers and Half Wave Rectifiers


4-pole bridge rectifierType 14.630.13.004 without studType 14.630.13.014 with stud

Technical dataMax. connecting voltage 270 V~Max. DC at 60 °C 1.0 AMax. ambient temperature 80 °C

Ug =U~

=230 V~

= 205 V1.11 1.11

Ug =U~

=400 V~

= 180 V2.22 2.22

Application:Current supply of spring-operated brakes from the ACmains (for normal excitation).Example: 205 V coil at the 230 V mains

The rectifiers are protected against overvoltage by varistorsin the input and output.

4-pole half wave rectifierType 14.630.14.004 without studType 14.630.14.014 with stud

Application:Current supply of spring-operated brakes from the ACmains (for normal excitation).Example: 180 V coil at 400 V mains


The rectifiers are protected against overvoltage by varistorsin the input and output.

Universal spark suppressor type 14.198.00.0ò

The universal spark suppressor limits the inductive voltagesto manageable values which appear when switching offclutches and brakes on the DC side. These inductive voltages can otherwise damage coils and switches.

The VDE rule 0580 therefore requires suitable protectivemeasures to avoid excessive switch-off and overvoltages.Four types of universal spark suppressors are available forthe following voltage ranges:

DC switching

Connection example

Type 14.630.13.004/14Type 14.630.14.004/14

Dimensions

AccessoriesBridge Rectifier and Half Wave Rectifier


6-pole bridge rectifierType 14.630.32.006 verticallyType 14.630.32.016 horizontally

Application:Current supply of spring-operated brakes from the ACmains (for norma excitation).Example: 205 V coil at 230 V mains

Type 14.630.32.006 Type 14.630.32.016Type 14.630.33.006 Type 14.630.33.016

Ug =U~

=230 V~

= 205 V1.11 1.11

Ug =U~

=400 V~

= 180 V2.22 2.22

Technical dataMax. connecting voltage 270 V~Max. DC at 60 °C 0,75 AMax. ambient temperature 80 °CThe rectifiers are protected against overvoltage by varistorsin the input and output.

The rectifiers type 14.630.32 / 33.006 / 16 include thespark suppressor required to VDE 0580 § 26.

6-pole half-wave rectifierType 14.630.33.006 vertically (460 V)Type 14.630.33.016 horizontally (460 V)Type 14.630.34.006 vertically (555 V)Type 14.630.34.016 horizontally (555 V)

Application:Current supply of spring-operated brakes from the ACmains (for normal excitation).Example: 180 V coil at 400 V mains


The rectifiers are protected against overvoltage by varistors in the input and output. The rectifiers type 14.630.32 / 33.006 / 16 include thespark suppressor required to VDE 0580 § 26.

Dimensions

AccessoriesPossible Installations


4-pole bridge rectifierType 14.630.13.004Type 14.630.13.014 with stud

4-pole half wave rectifierType 14.630.14.004Type 14.630.14.014 with stud

Brake

or

Guidance

Stud

Bore Ø 4.3

1...3 mm thickness

Guidance

14.630.32 / 33.016 14.630.32 / 33.006

or

6-pole bridge rectifierType 14.630.32.006 verticallyType 14.630.32.016 horizontally

6-pole half-wave rectifierType 14.630.33.006 verticallyType 14.630.33.016 horizontally

AccessoriesConnecting Diagrams


DC switching

AC switching

AC switching parallel to the motor

Bridge rectifier14.630.32.006 / 16



Half wave rectifier14.630.33.006 / 16



with half wave rectifier 14.630.33.006 / 016coil 103 V 180 V

180 Vwith half wave rectifier 14.630.14.004 / 014coil 103 V

with half wave rectifier 14.630.14.004 / 014coil 103 V

also for star connection




180 V

AccessoriesSelection Table


Rectifier type and rated coil voltage for the mains voltage

* Spark suppressor without capacitor. For optimized interference suppressionwe recommend to use a spark suppressor.

NoteMax. DC current:14.630.13 / 14.004 / 014: 1A at 60 °C14.630.32 / 33 / 34.006 / 016 0.75A at 60 °C

Max. rated coil voltage: 250 VStandard rated voltages: 24, 96, 103, 170, 180, 190, 205 V

AC Rectifier Rectifier type Spark suppressor Rectifier type Ratedvoltage 4-pole 6-pole coil voltage

(spark suppressor included)

[V] [V]

42 V Half wave 14.630.14.004 / 014 14.198.00.01 14.630.33.006 / 016* 20 V

48 V Bridge 14.630.13.004 / 014 14.198.00.01 14.630.32.006 / 016* 42 VHalf wave 14.630.14.004 / 014 14.198.00.01 14.630.33.006 / 016* 20 V

110 V Bridge 14.630.13.004 / 014 14.198.00.02 14.630.32.006 / 016* 103 V


230 V Bridge 14.630.13.004 / 014 14.198.00.04 14.630.32.006 / 016* 205VHalf wave 14.630.14.004 / 014 14.198.00.02 14.630.33.006 / 016* 103 V


255 V Bridge 14.630.13.004 / 014 14.198.00.04 14.630.32.006 / 016* 225 V

277 V Half wave 14.630.14.004 / 014 14.198.00.03 14.630.33.006 / 016* 127 V

290 V Half wave 14.630.14.004 / 014 14.198.00.03 14.630.33.006 / 016* 127 V

380 V Half wave 14.630.14.004 / 014 14.198.00.03 14.630.33.006 / 016* 180 V

400 V Half wave 14.630.14.004 / 014 14.198.00.03 14.630.33.006 / 016* 180 V

415 V Half wave 14.630.14.004 / 014 14.198.00.03 14.630.33.006 / 016* 180 V

420 V Half wave 14.630.14.004 / 014 14.198.00.03 14.630.33.006 / 016* 180 V

440 V Half wave 14.630.14.004 / 014 14.198.00.04 14.630.33.006 / 016* 205 V

460 V Half wave 14.630.14.004 / 014 14.198.00.04 14.630.33.006 / 016* 205 V

480 V Half wave 14.630.14.004 / 014 14.198.00.04 14.630.34.006 / 016* 215 V

500 V Half wave 14.630.14.004 / 014 14.198.00.04 14.630.34.006 / 016* 225 V

555 V Half wave 14.630.14.004 / 014 14.198.00.04 14.630.34.006 / 016* 250 V

SelectionBasic Information


The necessary size of a brake is largely determined by therequired brake torque Mreq.

The inertias to be braked, the relative speeds, the braking times and the operating frequency also have to be considered in the calculations. Marginal conditions, e.g.ambient temperature, humidity, dust and mountingposition should be known. In the event of extreme/criticalconditions, please contact the manufacturer. Selection inaccordance with the VDI rule 2241.

In any case, the friction faces must be kept from oil andgrease.

For explanations for the terms used in the calculationsplease refer to the explanations of symbols on page 9.

Safety factorTo ensure the necessary transmission safety even underextreme operating conditions, the required torque is multiplied by the safety factor K which depends on the operating conditions.

K 2

Load typesIn practical applications, it is mainly distinguished betweenthe following loads:

Mreq = Ma · K MK

Ma =

JL · ∆n0

9.55 · t3– t12(2

)

Mreq =JL · ∆n0

· K

9.55 · (t3 –t12)2

Mreq = (Ma ± ML ) · K MK

Mreq = JL · ∆n0

± ML · K MK(9.55 · t3 –

t12 )

(2

)

Dynamic plus static loadMost applications belong to this category as in most casesthere is not only a static torque but also a dynamic load.

+ ML = to be used, e.g. when lowering a load- ML = for normal braking

Approximate determination of the required brake torque and the brake sizeIf only the power to be transmitted is known, the requiredbrake torque can be determined as follows:

Mreq = 9550P

· K MK∆n0

Q =JL · ∆n0

2·

MK

182.5 MK ± ML

Thermal loadFor high operating frequencies and friction work per operation, the thermal load of the brake must be considered.The friction work per operation can be calculated as follows:

- ML = to be used, e.g. when lowering a load+ ML = for normal braking

The permissible friction work per operation at a given operating frequency can be taken from the diagrams onpage 18. With given friction work per operation, the permissible operating frequency can be taken from the diagrams mentioned above.

SelectionCalculation Examplel


The following technical data are known:P = 3 kW∆n0 = 1450 min-1

JL = 0.52 kgm2 totalt3 = 2 sML = 15 NmSh = 6 operations/h

Approximate determination of the required brake torqueand the brake size:

Mreq = 9550 P

· K∆n0

Mreq = 95503

· 2 = 40 N1450

Assume BFK458-14

Calculation of the required brake torque

t12 = 0.05 s (see page 18)

( )Mreq =0.52 · 1450

– 15 · 2 = 50 Nm9.55 · 2 – 0.05

2

MK = 60 Nm > Mreq = 50 Nm

Q = JL · ∆n0

2·

MK

182.5 MK ± ML

Q = 0.52 · 14502

· 60

= 4792 J182.5 (60 + 15)

Q = 4792 J < Qzul. = 30000 J

Therefore, type BFK458-14 is chosen

Thermal checking

Calculated friction work Q = 4792 J / operation.The diagram on page 18 shows for size 14 at Sh = 6 h-1 apermissible energy of 30000 J.

The brake has therefore been correctly selected.

Ordering exampleA brake type BFK458-14E or design N (with or withoutadjuster nut) with additional hand release and seal.Supply voltage 205 V =, shaft diameter 25 mm.

BFK458-14E, 205 V =, d = 25mm

( )Mreq =JL · ∆n0

– ML · K9.55 · t3– t12(

2)

Order Form


BFK458-òòò

Complete stator

Order quantity pieces

Size ò 06 ò08 ò 10 ò 12 ò 14 ò 16 ò 18 ò 20 ò 25

Design ò E (with adjuster nut)

ò N (without adjuster nut)

Voltage ò 24 V ò 96 V ò 103 V ò 170 V ò 180 V ò 190 V ò 205 V

Brake torque Nm (see torque gradings)

Cable length ò Standard

mm (from 100 mm - 1000 mm in 100 mm steps,

from 1000 mm - 2500 mm in 250 mm steps)

Hand release ò mounted

Armature plate ò Standard ò hardchromed (as from size 06) ò low-noise (O-ring version)

ò with pole shim/brass film

Microswitch ò Monitoring of the operation (as from size 12)

ò Wear monitoring (as from size 12)

ò Monitoring of hand release with direction of release away from the motor (sizes 06-25)

ò Monitoring of hand release with direction of release towards the motor (sizes 06-10)

Terminal box ò mounted (as from size 12)

Recipient: Lenze Bremsen GmbHPostfach 101352 · D-31763 HamelnWülmser Weg 5 · D-31855 AerzenFax ++49 (0) 5154 - 82 11 04

Absender

Company Customer no.

Street/P.O. Box Order no.

Postal code/City Issuer

Delivery address* Phone

Telefax

Invoice addressee* Delivery date

* Please specify if other than sender. Date Signature

Spring-operated brake BFK458 with accessories

Order FormAccessories


Accessories

Rotor ò Plastic ò Aluminium ò low-noise version (rotor with sleeve)

(for size 06/08 only)

Rotor in verschleißarmer ò Aluminium ò low-noise version (rotor with sleeve)Ausführung

Hub mm (for bore diameter see dimensions)

Fixing screw set ò for mounting to the flange

ò for mounting to the motor/friction plate

ò for flange with bore (up to size 16 incl.)

ò for mounting flange/double brake

Hand release ò as mounting kit

Terminal box ò as mounting kit

Flange ò Friction plate (up to size 16 incl.)

ò Flange

ò Tacho flange

ò Mounting flange double brake

Seal ò Seal

ò Seal ring (shaft diameter on request)

ò Sealing cap

ò Brake cover

Electrical accessories

Bridge rectifier ò 4-pole without stud

ò 4-pole with stud

ò 6-pole vertically, integrated spark suppressor

ò 6-pole horizontally, integrated spark suppressor

Half wave rectifier ò 4-pole without stud

ò 4-pole with stud

ò 6-pole vertically, integrated spark suppressor

ò 6-pole horizontally, integrated spark suppressor

Spark suppressor ò

Manufacturer’s Certification


Manufacturer’s Certification

for the purpose of the

EC Machinery Directive (98/73/EC)

We herewith certify that the below listed products are intended for assembly into a machine or for assembly with other elements to form a machine. Commissioning of the machine is prohibited before it is proven that itcorresponds to the EC regulation 98/37/EC.

Product: Type:

Electromagnetically released spring-operated brakes BFK454-òò BFK455-òò BFK457-òò

BFK458-òò BFK460-òò BFK464-òò

BFK466-òò BFK468-òò 14.442.òò

Electromagnetic clutches 14.101.òò 14.105.òò

Electromagnetic clutches 14.111.òò 14.115.òò

Clutch-brake units 14.137.òò 14.138.òò 14.800.òò

14.810.òò 14.820.òò 14.830.òò

14.852.òò 14.853.òò 14.855.òò

14.856.òò 14.857.òò 14.862.òò

14.863.òò 14.865.òò 14.866.òò

14.867.òò

Applied standards and regulations:

VDE 0470 (EN 60529) Rotating electrical machinesVDE 0580 Electromagnetic devices

Hameln, April 23, 2003

(Dr. E. Menzel)Geschäftsführer Bremsen

LenzeLenze Bremsen GmbH Postfach 10 13 52D-31763 Hameln

Site: Wülmser Weg 5D-31855 AerzenTelephone (0 51 54) 82-14 53Telefax (0 51 54) 82-11 04

EC-Declaration of Conformity


EC-Declaration of Conformity

for the purpose of the

EC Low-Voltage Directive (73/23/EEC)

amended by: CE-mark Directive (93/68/EEC)

The following products were developed, designed, and manufactured incompliance with the above-mentioned EC Directive under the sole responsibility of

Lenze GmbH & Co KG Bremsen, Postfach 101352, D-31763 Hameln

Product: Type:

Electromagnetically released spring-operated BFK454-òò BFK455-òò BFK457-òò

BFK458-òò BFK460-òò BFK464-òò

BFK466-òò BFK468-òò 14.442.òò

Elektromagnetic clutches 14.101.òò 14.105.òò

Elektromagnetic clutches 14.111.òò 14.115.òò

Clutch-brake combinations 14.137.òò 14.138.òò 14.800.òò

14.810.òò 14.820.òò 14.830.òò

14.852.òò 14.853.òò 14.855.òò

14.856.òò 14.857.òò 14.862.òò

14.863.òò 14.865.òò 14.866.òò

14.867.òò

Applied standards and regulations:

VDE 0470 (EN 60529) Rotating electrical machinesVDE 0580 Electromagnetic devices

Product: Type:

Rectifiers 14.630.13.òò 14.630.14.òò 14.630.32.òò

14.630.33.òò 14.630.21.òòò 14.630.22.òòò

Spark suppressors 14.198.00.02 14.198.00.03

SEGC Contact 14.611.30.òòò 14.611.38.òòò

Fast excitation devices 14.611.12.òò 14.611.14.òò 14.611.16.òò

14.621.13.òò 14.621.14.òò

Electronic switch devices 14.610.11.048 14.640.10.048

Applied standards and regulations:VDE 0411, part 1 (EN 61010-1) Safety requirements for electrical equipment for

measurement, control and laboratory use

Hameln, April 23, 2003

(Dr. E. Menzel)Geschäftsführer Bremsen

LenzeBrakes and clutches

Lenze Bremsen GmbH Postfach 10 13 52D-31763 Hameln

Site: Wülmser Weg 5D-31855 AerzenTelephone (0 51 54) 82-0Telefax (0 51 54) 82-11 04

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ICELANDsee DENMARK

INDIAElectronic Service:National Power Systems10 Saibaba Shopping CentreK. K. Marg,Opp. Navjivan Society P.O.,MUMBAI 400 008Phone ++91-22-2300 5667, 2301 3712 Telefax ++91-22-2300 5668

Mechanical Service:Emco Lenze Pvt. Ltd.106 Sion Koliwada Road, Sion (East)MUMBAI 400 022Phone ++91-22-40 71 81 6, 40 76 37 1

40 76 43 2, 40 77 45 3Telefax ++91-22-40 90 42 3

V3 Controls Pvt. Ltd.1, “Devyani”, Next to SBI, Baner ITI Road,Sanewadi, Aundh,PUNE 411 007, MSPhone ++91-20-5 88 68 62Telefax ++91-20-5 88 03 50

INDONESIAP.T. Futurindo GlobalsatyaJl.: Prof. Dr. Latumenten No. 18Kompleks PerkantoranKota Grogol Permai Blok A 35JAKARTA 11460Buero 1:Phone ++62 (0)21 / 766 42 34

765 86 23Telefax ++62 (0)21 / 766 44 20Buero 2:Phone ++62 (0)21 / 567 96 31

567 96 32Telefax ++62 (0)21 / 566 87 50

IRANTavan Ressan Co.P.O.Box. 19395-5177No. 44, Habibi St.,South Dastour St.,Sadr EXP’Way,TEHRAN 19396Phone ++98 21 / 260 26 55

260 67 66260 92 99

Telefax ++98 21 / 200 28 83

ISRAELGreensphon Engineering Works LTDP.O.Box 10 108HAIFA-BAY 26110Phone ++972 (0)4 / 87 21 18 7Telefax ++972 (0)4 / 87 26 23 1

ITALYGerit Trasmissioni S.p.A.Viale Monza 33820128 MILANOPhone ++39 02 / 270 98.1Telefax ++39 02 / 270 28 290

JAPANMiki Pulley Co., Ltd.1-39-7 Komatsubara, Zama-cityKANAGAWA 228-8577Phone ++81 (0)462 / 58 16 61Telefax ++81 (0)462 / 58 17 04

LATVIAsee LITHUANIA

LITHUANIALenze UABBreslaujos g.33035 KAUNASPhone ++370 37 407174Fax./Tel. ++370 37 407175

LUXEMBOURGsee BELGIUM

MACEDONIALenze Antriebstechnik GmbHPretstavnistvo Skopjeul. Nikola Rusinski 3/A/21000 SKOPJEPhone ++389 2 30 90 090Telefax ++389 2 30 90 091

MALAYSIAD.S.C. ENGINEERING SDN BHD3A & 3B, Jalan SS21/56BDamansara Utama47400, PETALING JAYASELANGOR Phone ++60 (0)3 / 77 25 62 43

77 25 62 4677 28 65 30

Telefax ++60 (0)3 / 77 29 50 31

MOROCCOGUORFET G.T.D.R Automatisation IndustrielleBd Chefchaouni Route 110 km, 11.500No. 353-Aîn-SabaâCASABLANCAPhone ++212/22-35 70 78Telefax ++212/22-35 71 04

MAURITIUSAutomation & Controls Engineering Ltd3, Royal RoadLe Hochet, Terre RougeMAURITIUSPhone ++230 248 8211Telefax ++230 248 8968

MEXICOsee USA

NETHERLANDSLenze B.V., Postbus 31 015203 DC`S-HERTOGENBOSCHPloegweg 155232 BR`S-HERTOGENBOSCHPhone ++31 (0)73 / 64 56 50 0Telefax ++31 (0)73 / 64 56 51 0

NEW ZEALANDTranz Corporation343 Church StreetP.O. Box 12-320, PenroseAUCKLANDPhone ++64 (0)9 / 63 45 51 1Telefax ++64 (0)9 / 63 45 51 8

NORWAYDtc- Lenze asStallbakken 52005 RAELINGENPhone ++47 / 64 80 25 10Telefax ++47 / 64 80 25 11

PHILIPPINESJupp & Company Inc.Unit 224 Cityland Pioneer Bldg.,Pioneer SreetMANDALUYONG CITYPhone (632) 687 7423

683 0042683 0047

Telefax (632) 687 7421

POLANDLenze-Rotiw Sp. z o.o.ul. Ro˝dzieƒskiego 188b40-203 KATOWICEPhone ++48 (0)32 / 2 03 97 73Telefax ++48 (0)32 / 7 81 01 80

Lenze Systemy Automatyki Sp. z o.o.Ul. Rydygiera 4787-100 TORU¡Phone ++48 (0)56 / 6 58 28 00

6 45 34 606 45 35 70

Telefax ++48 (0)56 / 6 45 33 56

PORTUGALCosta Leal el VictorElectronica-Pneumatica, Lda.Rua Prof. Augusto Lessa, 269,Apart. 520534202-801 PORTOPhone ++351-22 / 5 50 85 20Telefax ++351-22 / 5 02 40 05

ROMANIAsee AUSTRIA

RUSSIAInteldrive1 Buhvostova Street 12/11Korpus 18 Office 322MOSCOW 107258Phone ++7 (0)095 / 963 96 86Telefax ++7 (0)095 / 962 67 94

SERBIA-MONTENEGROsee MACEDONIA

SINGAPOREsee MALAYSIA

SLOVAC REPUBLICECS Sluzby s.r.o.Staromlynska 2982106 BRATISLAVAPhone ++421 (0)2 45 25 96 06

++421 (0)2 45 64 31 47++421 (0)2 45 64 31 48

Telefax ++421 (0)2 45 25 96 06

SLOVENIALenze pogonska tehnika GmbHZbiljska Cesta 41215 MEDVODEPhone ++386 (0)1 361 61 41Telefax ++386 (0)1 361 22 88

SOUTH AFRICAS.A. Power Services (Pty.) Ltd.P.O. Box 11 37, RANDBURG 2125Phone ++27 (0)11 / 78 71 80 1Telefax ++27 (0)11 / 78 75 04 0

SOUTH KOREAHankuk Mechatro Ltd.Room# 1409 Samhan Officetel830-295 Bomil-Dong, Dong-GuPUSANPhone ++82-51-635-6663Telefax ++82-51-635-6632

SPAINLenze Transmisiones, S.A.Mila i Fontanals, 135-13908205 SABADELL (Barcelona)Phone ++34 93 / 72 07 68 0Telefax ++34 93 / 71 22 54 1

SWEDENLenze Transmissioner ABBox 10 7458110 LINKÖPINGPhone ++46 (0)13 / 35 58 00Telefax ++46 (0)13 / 10 36 23

SWITZERLANDLenze Bachofen AGAckerstrasse 458610 USTERPhone ++41 (0) 43 399 14 14Telefax ++41 (0) 43 399 14 24

Vente Suisse Romande:Route de Prilly 25, 1023 CRISSIERPhone ++41 (0)21 / 63 72 19 0Telefax ++41 (0)21 / 63 72 19 9

SYRIAZahabi Co.8/5 Shouhadaa StreetP.O.Box 8262ALEPPO-SYRIAPhone ++963 21 21 22 23 5

21 21 22 23 6Telefax ++963 21 21 24 76 8

TAIWANACE Pillar Co. Ltd.No.12, Lane 61, Sec. 1, Kuanfu Road, San-Chung CityTAIPEI HSIENPhone ++886 (0)2 / 299 58 40 0Telefax ++886 (0)2 / 299 53 46 6

THAILANDPSG-WESCO CO., LTD.429 Moo 7, Theparak Road, Tambol Theparak, Amphur MuangSAMUTPRAKARN 10270Phone ++66 (0)2 / 383 5633Telefax ++66 (0)2 / 383 5637

TUNESIAsee FRANCE

TURKEYLSE Elektrik Elektronik Makina, Otomasyon Müh. San. Ve Tic. Ltd. Ωti.Atatürk mah. Cumhuriyet cad.Yurt sok. No:7ÜMRANIYE/∑STANBULPhone ++90 (0)216 / 316 5138Telefax ++90 (0)216 / 443 4277

UKRAINESV AlteraPobedy Av. 44KIYVPhone ++380-44-2416777Telefax ++380-44-2419084

UNITED KINGDOM/EIRELenze Ltd.Caxton RoadBEDFORD MK 41 OHTPhone ++44 (0)1234 / 32 13 21Telefax ++44 (0)1234 / 26 18 15

USA1730 East Logan AvenueEMPORIA, KS 66 801 Phone ++1 620 / 343-8401Telefax ++1 620 / 342-2595

55 Dwight PlaceFAIRFIELD, NJ 07004Phone ++1 973 / 227-5311Telefax ++1 973 / 227-7423

1 W. Illinois StreetSuite 240ST. CHARLES, IL 60174Phone ++1 630 / 377-7534Telefax ++1 630 / 377-9623

AC Technology Corp.660 Douglas StreetUXBRIDGE, MA 01569Phone ++1 508 / 278-9100Telefax ++1 508 / 278-7873

Service you can trust

For us, service is more than just supporting

the use of our drives. The Lenze system

approach begins with your enquiry. Next

you get technical information and advice

from a network of sales outlets staffed by

knowledgeable engineers. If you want,

we follow up with training, commissio-

ning, maintenance and repair. Our service

is always at your disposal.

With passion

The Lenze team does not just offer the

necessary manpower and technical know-

how – we are passionate and meticulous

about what we do. We will only be happy

once you are entirely satisfied with our

work. Our team of professionals provides

assistance over the telephone or on site,

ensures the express delivery of spare parts

and carries out repairs with incredible

urgency. We’re fast and reliable.

Someone to talk to

Expert advice is available for all your

technical queries via our helpline. In case

of urgent needed, call 008000 24 hours

(008000 24 46877), Lenze’s worldwide

expert helpline – 24 hours a day, 365 days a

year. For more direct assistance, you can of

course contact your local Lenze service

support centre. We can tell you where it

is – or you can find out for yourself by

visiting us on the Internet at

www.Lenze.com.

Around the world

Our products are available for speedy

delivery worldwide. Lenze companies, Lenze

factories and sales agencies are based in

major industrial countries around the

world. Contact them through our website

www.Lenze.com, which also gives you

24-hour access to technical instructions

and product manuals. Local support, on

site if you need it, is available.

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