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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% | |
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|
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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