It is a low voltage system protection to selectively separate fault points from
the system to minimize the influence of fault. In this protection type, only the circuit
breaker installed at a fault point is operated while the other feeder can be
used continuously.
In this protection type, upstream circuit breakers can be tripped earlier than
downstream circuit breaker for back up protection. So, it is applied to the
smaller breaking capacity than the calculated value at the downstream circuit.
Features:
Specifications:
- Frame: 250AF
- Pole: 3P
- Rated current,:150A,200A, 250A
- Rated short-circuit breaking
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