What the ratings mean for your panel
The 3VA2116-5KP32-0AC0 is a 3-pole IEC frame 160 molded-case circuit breaker with an Icu of 55 kA at 415 V — breaking capacity class M. That figure governs fault interruption at the main distribution board: 55 kA symmetrical at 415 V means it safely clears a bolted fault up to that level without upstream fuses needing to operate, which is the SCCR anchor for the downstream panel. The ETU850 electronic trip unit provides LSI protection (long-time, short-time, instantaneous) with an adjustable Ir from 63 A to 160 A, so the breaker is field-configurable for a 63 A feeder or a full 160 A main. Short-time pickup Isd spans 0.6 to 10× In, and instantaneous Ii covers 1.5 to 10× In — selectivity with downstream breakers is achievable across the full range.
Integration and compliance notes
Mounts on a standard DIN rail or panel-mount footprint per the 3VA2 frame dimensions. The nut keeper kit and two HQ auxiliary switches are included as factory-fitted accessories — no separate ordering for basic status feedback. N-conductor protection is optional via an external current transformer, which allows the same breaker to serve a 3P+N distribution board without a dedicated 4-pole variant. Compliance documentation (RoHS, REACH, IEC/UL) is available from the manufacturer's technical support portal; the IEC 60947-2 rating is the primary certification for this class.