Molded Case Circuit Breaker
AB(ABB)
AB (ABB)Application
- AB Series moulded case circuit breaker is suitable for circuit AC 50Hz/60Hz, rated voltage up to AC 660V, rated operating current up to 250A.It features normal structure, reliable performance, high breaking capacity, used for power distribution and protecting the circuit and electrical equipment against overload and short circuit.
- The products conforms to IEC60947-2 standard.
Technical Data
| Type | AB-160 | AB-250 | |
| Poles number | 3 | 3 | |
| Rated current In(A) | 16~160 | 100~250 | |
| Rated operating voltage Ue(V) (50/60Hz) | 690 | 690 | |
| Rated insulation voltage Ui(V) | 800 | 800 | |
| Rated impulse withstand voltage Uimp(KV) | 8 | 8 | |
| Utilisation category | A | A | |
| Rated limited short-circuit breaking capacity Icu(KA) | 220/230V | 25 | 50 |
| 380/415V | 16 | 36 | |
| 400V | 10 | 25 | |
| 500V | 8 | 20 | |
| 690V | 3 | 5 | |
| 500V-3poles in series | 16 | 36 | |
| Rated short-circuit service breaking capacity Ics(%Icu) | 100 | 75 | |
Dimensioned
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