7/28/2019 ACB B Type
2/4
C S " A I R C I R C U I T B R E A K E R S a r e a v a i l a b l
e i n c u r r e n t r a n g e o f
6 30 ~1 60 0A i n a s in gl e f ra me w it h w id e o pt io ns o
f a cc es so ri es -f or
u t m o s t r e l i a b i l i t y, s a f e t y p r o t e c t i o
n a n d v a r i o u s a p p l i c a t i o n s
3 Pole
M a n ua l l y o p e ra t e d F i xe d v e r si o n
M o s t R e l i a b l e a n d e c o n o m i c a l Pr o t e c t i
o n r e l e a s e T h e r m a l
M a g n et i c t y p e p r o vi d e s O L , S C a n d G F ( o p
ti o n a l ) p r o te c t i on .
B u s b a r c o n n e c t i o n - H o r i z o n t a l
n
n
n
n
C S " A I R C I R C U I T B R E A K E R S a r e a v a i l a b l
e i n c u r r e n t r a n g e o f6 30 ~1 60 0A i n a s in gl e f ra
me w it h w id e o pt io ns o f a cc es so ri es -f oru t m o s t r
e l i a b i l i t y, s a f e t y p r o t e c t i o n a n d v a r i
o u s a p p l i c a t i o n s
3 PoleM a n u al l y o p e r at e d F i x ed v e r s io nM o s t
R e l i a b l e a n d e c o n o m i c a l Pr o t e c t i o n r e l
e a s e T h e r m a lM a g n et i c t y p e p r o v id e s O L , S
C a n d G F ( o p ti o n a l ) p r o te c t i on .
B u s b a r c o n n e c t i o n - H o r i z o n t a lH ig h B r
ea kin g C a p a c it y & L a r g e S ho r t - Tim eCurrent
Capacity
Complete Isolation of Poles
Full utilizatio n o f electro magnetic repulsive fo rce
n
n
n
n
n
n
n
n
n
n
n
n
L i g ht e s t & c o mp a c t
H i g h b r e a k i n g c a p a c i t y - 4 5 /5 0 k A
T h er ma l m ag n et ic r el e as e p ro vi d es
h i gh d e g re e o f s y st e m p r o t e c ti o n
a g a i n s t O V E R L O A D , S H O R TC I R C U IT & E A
R T H F AU LT ( O p t io n a l )
To t a l b r ea k i ng t i me l e s s t h a n 3 0 ms
i n cl u di n g ar c in g ti me o f l e ss t ha n
1 0 m s e n s u r e s f a s t a c t i n g
m e c h a n i s m
M o s t s i m p l e t o o p e r a t e a n d
m a i n t a i n
H i g h e s t v a l u e o f me c h a n i c a l &
e l e c t r i c a l e n d u r a n c e d u e t o
p a t e n te d m e c h a n i s mH ig h d ie le ct ri c s tr en
gt h e ve n i n h ot
a nd h um id c on di ti on s du e t o u se o f
c l a s s ' B ' a n d ' F ' i n s u l a t i n g m a t e r i
al
F i b r e g l a s s s a f e t y s h u t t e r f o r sa f e t y o
f
o p e r a t i n g p e r s o n n e l .
C a n w i th s ta nd i mp u l se v ol ta g e o f
8 kV ( pe a k) , 1. 2/ 50 m i cr o s e c w av e
a s p e r c a se ' A ' i n h o mo g e ne o u s fi e l d
c o n d i t i o n s o f I E C 9 4 7 - p ar t 1
C o mp l y w i th u t il i z at i o n c a t eg o r y B &p o
l l u ti o n d e g r e e 3 g r o u p 1 o f
I E C 9 4 7 - P a r t 1
T e s t e d f o r s e i s m i c c o n d i t i o n s
s u i t a b i l i t y .
W id e rang e of acce ssori es offer ed -
S h u n t t r i p , U V T, A u x i l i a r y S w i t c h , t r i
p
i n di c at io n s wi t ch e s t o m ee t m ar ke t
s p e c i f i c a t i o n s .
l
l
l
l
T h e c o n t a ct s p r i ng n o r m al l y p r o v i de s a n
a d e q ua t e c o n t a ct p r e s su r e .
A large current flow causes an electromagnetic rep ulsive force
b etweent h e c o nt a ct l e ad h a l ve s .
T hi s r ep ul si ve f or ce w or ks i n a d ir ec ti on t o t
ur n t he m ov in g c on ta ctc l oc k wi s e a b ou t t h e c o nt
a ct s h af t , g i v in g i t m o re c o nt a ct p r es s ur e
.
T h i s i s w hy o u r d e s i g n p r o v id e s a l a r g e s
h o r t- t i m e c u r re n t c a p a ci t y.
l
l
W hen interrup ting a large current, the electromagnetic rep
ulsivef or ce w or ks i n a d ir ec ti on t o s ep ar at e t he m
ov in g c o nt ac t f ro m t he
s t a t i on a r y c o n t a ct .A sep arating force resulting
from the electromagnetic rep ulsivef or ce a dd s t o t ha t b y t
he t ri p s pr in g, as si st in g a h i gh - sp ee di n te r ru p
ti o n . Th i s i s wh y o u r de s ig n p r ov i de s a h i g h b
r ea k in gcap acity
E v en t h ou g h i t i s s o un d a n d c o mp a ct i n d e si
g n , i t p r ov i de s a h i g h b r ea k in gc apa ci ty a nd a l
ar ge s ho rt - t im e c urr en t c ap ac it y b y f ul ly u ti li
zi ng th ee l e c t ro m a g n et i c r e p ul s i v e f o r c e
.
Salient Features
7/28/2019 ACB B Type
3/4
Amperes Frame (based o n IEC / IS) 630 800 1000 1250 1600
Type (3 Poles) AH-6B AH-8B AH-10B AH-12B AH-16B
In sulation Voltage Ui (V) AC 690 690 690 690 690
Impul se Voltage Uimp (V) AC (Peak) 8 8 8 8 8
Dielectri c streng th (for a mi nute) k V 3 3 3 3 3
R a t e d B r e a ki n g C a p ac i t y / Ra t e d M a k i ng C
a p a ci t y
(Icu=Ics, RMS/Icm, Pea k) kA 415V A C 45/94. 5 45* /94.5 50/105
50/105 50/105
Short ti me current Icw k A for 1 sec. RMS 45 45 50 50 50
Total breakin g time/closi ng time (m.sec.) 30/40 30/40 30/40
30/40 30/40
W eight (k g) 40 40 42 42 44
Overal l Di mension (H x W x D) (mm) 487 x 332 x 320
Economical Thermal Magnetic Release
l
l
A d irect acting electromagnetic instantaneous trip d evice with
fixed current setting for Short Circuit Protection
C T a c t u at e d t h e r ma l O v e r lo a d r e l a y o f f e
r s s e t t in g s 8 0 - 1 20 % u s e d a l o n g w i t h S h u n t
t r i p f o r O / L P r o te c t i o n
Magnetic Release willtake over at the shortcircuit setting,
trippingthe ACBinstantaneously.Ac c urac y of Ti me &
Current Setti ng 20%Cal i brated at40 C:
Balanced (Cold Start)
------Balanced (Hot St art )
MA GN E TIC IN S T. S /C TR IP
TIME
40ms.
30ms.
RATED CURRENT
6 0
7 0
8 0
1 0 0
1 2 5
1 5 0
2 0 0
2 5 0
3 0 0
4 0 0
5 0 0
6 0 0
1 2 0
2
3
5 .0
4 .0
3 .0
2 .0
6 .0
8 .0
1 0
2 03 0
4 0
5 0
1
2
3
4
5
6
8
2 0
5 0
1
4
h o u r
m i n u t e
second
8 0
%
1 0 0
%
1 2 0 %
Long Ti m e Del ay Tri pCurrent setti ng range
% R a te d C u rr e nt o f B a se C u rr e nt
N o te : 1 : A p pl i ca b le w h er e r a te d c u rr e nt o f
o ve r cu r re n t tr i p d e vi c es
is not less than 250A.
: 2 : A pp li ca bl e t o A H - 1 0B a nd A H - 1 2B o nl y.
: 3 : D e fa u lt s e tt i ng f o r 1 6 B
Operating
Time
1 . 0
5
1 . 3
C u r re n t s e t t i ng o f n o n - ad j u s t ab l e m a g n
et i c i n s t an t a n e ou s t r i p
Applic able B reaker
NI Ins tantaneous Trip Devic e 3 5 5 7.5
7.5 10l S elec t and spec ify on e of 10 15
the pick- up curre nts from 15 20the table 20 25
l To l e r a nc e i s + 2 0 %
AH-6B AH-8B
AH-10B
AH-12B
AH-16B
T ri p p i ng C h a ra c t e ri s t i cs o f T h e rm a l M a g
n e ti c T r i p D e v i ce
