CAB2-63H Series Circuit Breaker(MCB) has the characteristics of advanced structure, reliable performance, high breaking capacity(10kA) and beautiful appearance. It is mainly used for AC 50Hz or 60Hz, rated voltage 400V or below and rated working current 63A or below. It is used for overload and short-circuit protection of lighting, distribution lines, equipment in office buildings, residential buildings and etc. It can also be used for infrequent on-off operations and conversion of lines.
CAB2-63H Circuit Breaker has the characteristics of advanced structure, reliable performance, high breaking capacity(10kA) and beautiful appearance. It is mainly used for AC 50Hz or 60Hz, rated voltage 400V or below and rated working current 63A or below. It is used for overload and short-circuit protection of lighting, distribution lines, equipment in office buildings, residential buildings and etc. It can also be used for infrequent on-off operations and conversion of lines.
| Electrical Features | Rated current In | 1,2,3,4,5,6,8,10,13,16,20,25,32,40,50,63A |
| Poles | 1P, 1P+N, 2P, 3P, 3P+N,4P | |
| Rated voltage Ue | 240/415V~ | |
| Insulation voltage Ui | 500V | |
| Rated frequency | 50/60Hz | |
| Rated breaking capacity | 10,000A | |
| Energy limiting class | 3 | |
| Rated impulse withstand voltage(1.5/50) Uimp | 4,000V | |
| Dielectric test voltage at ind. Freq. for 1 min | 2kV | |
| Pollution degree | 2 | |
| Thermo-magnetic release characteristic | B,C,D | |
| Mechanical Features | Electrical life | 8,000 Cycles |
| Mechanical life | 20,000 Cycles | |
| Contact position indicator | Yes | |
| Protection degree | IP20 | |
| Reference temperature for setting of thermal element | 30℃ | |
| Ambient temperature (with daily average≤35℃) | -5℃~+40℃ | |
| Storage temperature | -25℃~+70℃ | |
| Installation | Terminal connection type | Cable/Pin-type busbar/U-type busbar |
| Terminal size top/bottom for cable | 25mm2 18-3AWG | |
| Terminal size top/bottom for busbar | 25mm2 18-3AWG | |
| Tightening torque | 2.5Nm 22In-Ibs | |
| Mounting | On DIN rail EN60715(35mm) by means of fast clip device | |
| Connection | Power supply in both directions | |
| Combination with accessories | Auxiliary contact | Yes |
| Alarm contact | Yes | |
| Shunt release | Yes | |
| Over/Under voltage release | Yes |
MCB Characteristics Curves
|
Thermal Tripping |
Magnetic Tripping |
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|
Asper IEC60898 |
No tripping current |
Tripping current I2 |
Time Limits t |
Hold current I4 |
Trip current I5 |
Time Limits t |
|
B Curve |
1.13×IN |
≥1h |
3×IN |
≥0.1s |
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|
1.45×IN |
＜1h |
5×IN |
＜0.1s |
|||
|
C Curve |
1.13×IN | ≥1h | 5×IN | ≥0.1s | ||
| 1.45×IN | ＜1h |
10×IN |
＜0.1s | |||
|
D Curve |
1.13×IN |
≥1h |
10×IN |
≥0.1s |
||
| 1.45×IN |
＜1h |
20×IN |
＜0.1s |
|||
Tripping characteristics
Based on the Tripping Characteristics, MCB are available in“ B”“, C”and“ D”curve to suit different types of applications.
“B”Curve for protection of electrical circuits with equipment that does not cause surge current (lighting and distribution circuits) Short circuit release is set to (3-5)In.
“C”Curve for protection of electrical circuits with equipment that cause surge current (inductive loads and motor circuits) Short circuit release is set to (5-10)In.
“D”Curve for protection of electrical circuits with cause high inrush current ,typically 12-15 times the thermal rated current (transformes, x-ray machines etc,)Short circuit release is set to (10-20)In.
Circuit Diagram
Overall and Installation Dimension(mm)
