The Siemens 3VA2063-8KP32-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for 63 A continuous current with an ETU850 electronic trip unit, designed for line protection in three-phase distribution panels. Its 3-pole construction and adjustable thermal-magnetic or electronic trip range from 95 A minimum to 756 A maximum allow it to protect feeders and large branch circuits across a wide ampacity window. Rated interrupting capacity reaches 440 kA at 240 V AC and 330 kA at 415 V AC, giving substantial fault-current headroom for low-voltage main switchboards.
Interrupting Capacity and Selectivity
At 690 V AC the breaker interrupts 52.5 kA, and at 500 V AC it handles 220 kA — figures that support selective coordination with downstream 25 kA or 36 kA rated branch breakers without cascading. The ETU850 trip unit provides communication and other measurement functions, enabling power monitoring and remote trip indication for predictive maintenance and energy management integration.
Panel Integration
Dimensions are 105 mm wide, 181 mm high, and 86 mm deep — a standard 3-pole MCCB footprint for DIN-rail or panel-mount installation in switchgear assemblies. Front protection is IP40, suitable for enclosed distribution boards where the breaker is not exposed to washdown or dust ingress.