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S MOULDED CASE CIRCUIT BREAKER

 
APPLICATIONS:
Moulded case circuit breaker is suitable for circuit AC 50/60Hz, rated voltage up to AC 660V, rated operating current to 630V.
It features normal structure, reliable performance, complete accessories & high breaking capacity, used for power distribution and protecting the circuit and electrical equipment against overload short circuit. It complies with standard of IEC947-2.DD.
TRIPPING CHARACTERISTICS OF MCCB:
Rated current of release (A)
Thermodynamic release (ambient temp +40℃)
Operational current of magnetic release (A)
1.05In (cold state) inoperative time(h)
1.30In (heat state) inoperative time (h)
In≤63
≥1
<1
10-50In±20%
63<In≤250
≥2
<2
10In±20%
25<In≤800
≥2
<2
5-10In±20%
 
Type
Rated current
(A)
Rated insulating voltage
Pole number
Rated operating voltage
Untimate short circuit breaking capacity 1cu
KA
-Service short circuit breaking capacity 1cu
KA
AC380V
(400)
AC660V
(690)
DC250V
AC380V
(400)
AC660V
(690)
125E
12.5,16,20,
25,32,40,50,
63,80,100
600V
Two three four
380V
660V
15
-
-
7.5
-
125S
25
-
20
16
-
160S
16,20,25,32,
40,50,63,80,
100,125,160
35
8
20
18
-
160H
50
10
40
25
-
250S
100,125,160,
180,200,225,250
35
10
40
18
-
250M
50
16
40
30
-
250H
65
18
40
48
-
400S
200,225,250,
315,350,400
35
16
40
18
-
400M
50
20
40
30
-
400H
65
25
40
48
-
630S
400,500,630
50
20
40
30
-
630M
65
25
40
48
-
630H
80
30
40
60
-
800S
500,630,700,800
50
20
40
30
-
800M
65 25 40 48 -
800H
80 30 40 60 -
 
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