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Molded case circuit breakers are also known as circuit breakers, all parts are sealed in the plastic shell,
auxiliary contacts, undervoltage release and shunt release and more modular. As the structure is very compact,
molded case circuit breakers can not repair. The multi-use manual operation,
large-capacity optional electric separation. As the application of electronic over-current release,
Molded Case circuit breaker can be divided into two categories A and B, B class has a good three sections
of protection, but because of price factors, the use of thermal magnetic release A market share of products higher.
NF |
63 |
125 |
250 |
400 |
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Type and Pole |
2-pole |
CW63 |
CW125 |
CW250 |
CW400 |
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3-pole |
CW63 |
CW125 |
CW250 |
CW400 |
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4-pole |
---- |
---- |
CW250 |
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Rated current In |
A |
3,5(6),10,15(16),20,25,30(32),40,50,60(63) |
30,32,40,50,60, 63,80,100,125 |
100,125,140,150,160, 175,180,200,225,250 |
250,300,315,350,400 |
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Rated voltage Ue(V) |
AC380-690 DC250 |
AC380-690 DC250 |
AC380-690 DC250 |
AC380-690 DC250 |
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Rated insulation voltage Ui(V) |
AC690V |
AC690V |
AC690V |
AC690V |
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Short-circuit Interrupting capacity |
AC |
690V |
-- |
-- |
-- |
-- |
|
AC |
500V |
2.5/1 |
7.5/4 |
10/5 |
15/8 |
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AC |
440V |
2.5/1 |
10/5 |
15/8 |
25/13 |
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AC |
415V |
-- |
-- |
-- |
36/18 |
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AC |
400V |
5/2 |
10/5 |
18/9 |
36/18 |
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AC |
380V |
-- |
-- |
-- |
40/20 |
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AC |
230V |
5/2 |
25/13 |
30/15 |
50/25 |
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DC |
250V |
2.5/1 -- |
7.5/4 -- |
10/5 -- |
20/10 -- |
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Dimensions (mm) |
W×H×D |
50(75)×130×68 |
60(90)×155×68 |
105(140)×165×68 |
140×257×103 |
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Automatic tripping device |
Hydraulic-magnetic |
Thermal-magnetic |
Thermal-magnetic |
Hydraulic -magnetic |
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