The Siemens 3VA2163-5JP32-0AD0 is a SENTRON molded case circuit breaker rated for 63 A continuous current, with an adjustable thermal-magnetic trip unit covering 95 A minimum to 756 A maximum — so the same frame can be tuned to protect a 100 A feeder or a 600 A main, depending on the trip setting installed. At 415 V the interrupting rating drops to 121 kA, still well above typical industrial secondary-side fault levels. The 3-pole design and 800 V rated insulation voltage suit it for 400 V three-phase distribution in switchboards and motor control centers. This breaker carries a communication function onboard — meaning it can report status, trip events, and measured values to a PLC or BMS over the integrated bus interface, without an external adapter. The trip indicator is absent (no mechanical flag), so the communication channel is your primary remote status path.
Maximum power loss is 4 W, negligible for panel thermal budgeting.
The 187 kA interrupting capacity at 240 V and 121 kA at 415 V give this breaker headroom for full-selectivity coordination with downstream 25 kA or 36 kA rated MCBs, as long as the upstream transformer impedance and cable lengths keep the prospective fault current below those thresholds. For a 400 V distribution board fed from a 1000 kVA transformer (typically 40-50 kA prospective), the 121 kA rating at 415 V is comfortable — no need to oversize to a higher-frame breaker just for interrupting duty.