Low voltage pole mounted circuit breaker D165T with digital trip unit

The protection and management of MV / LV transformers in rural areas requires the use of specific Circuit Breakers adapted to significant load imbalances and thus guarantees the total use of the installed power even in unbalanced conditions. These devices (4 poles - 3 protected) use air-break technology with chambers with metal partitions to cut the arc.

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Product Description

Name	Circuit breaker
	Low voltage pole mounted circuit breaker D165T with digital trip unit
Description	The protection and management of MV / LV transformers in rural areas requires the use of specific Circuit Breakers adapted to significant load imbalances and thus guarantees the total use of the installed power even in unbalanced conditions. These devices (4 poles - 3 protected) use air-break technology with chambers with metal partitions to cut the arc.

Benefits

Transformer protection (50 kVA or 100 kVA) more compact and easier to use than a fused solution
When the Circuit Breaker is closed, a spark gap limits the rise in potential of the LV neutral from the earth, for a value exceeding 10 kV
When the Circuit Breaker is open, an electrical connection is done between the neutral of the transformer and the ground
Contact us to define your needs (number of feeders, fixing support, type of rod assembly, Trip Unit type, Load Indicator option, etc.)

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Standards

Standards:

HN 63-S-11

Electrical values

Rated Voltage (Ur):	0.44 kV
Rated current:	165 A
Rated short-circuit breaking capacity:	4 kA
Rated short-circuit making current:	6.8 kA
Rated short-time withstand current (1s):	4 kA/s
Rated power-frequency withstand voltage (50 Hz - 1min):	10 kV
Lightning impulse withstand level of voltage (1.2/50):	20 kV