The Siemens 3VA2163-6KP36-0AA0 is a SENTRON 3-pole molded case circuit breaker rated for 63 A continuous current with an ETU850 electronic trip unit, designed for line protection in distribution panels. It carries interrupting ratings of 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3.7 kA at 690 V — so it clears high fault currents on the low-voltage side while still handling the reduced fault energy at 690 V. The breaker holds its full 63 A rating across the entire ambient range from 40 °C to 70 °C, which simplifies panel derating calculations.
Dimensions and panel fit
At 105 mm wide × 181 mm tall × 86 mm deep, this breaker drops into a standard 3-pole MCCB footprint on a DIN rail or panel-mount base. The 86 mm depth (3.39 in) leaves clearance behind the door for wiring gutters and the ETU850's communication wiring.
Trip unit and protection
The ETU850 electronic trip unit provides adjustable overload and short-circuit protection with a communication function for integration into a higher-level monitoring system. Insulation voltage is rated 800 V, and the front face carries IP40 protection — suitable for enclosed panel mounting where the breaker is not exposed to washdown or dust ingress.