SENTRON 3VA2 MCCB, 63 A Frame, Shunt Trip
The Siemens 3VA2163-6HN36-0HA0 is a SENTRON molded case circuit breaker (MCCB) in a 3-pole configuration, rated for a continuous current of 63 A across the full ambient temperature range from 40 °C to 70 °C — no derating needed up to the frame limit. It is designed for line protection, meaning it sits at the main distribution point or feeder branch to protect cables and busbars from overloads and short circuits. The interrupting capacity hits 242 kA at 240 VAC and still holds 187 kA at 415/440 VAC, which gives solid selectivity headroom in high-fault industrial panels. This variant ships with a shunt trip release (STL) as the auxiliary release, so it can be remotely tripped by a separate control signal — useful for emergency-stop circuits or remote disconnect schemes. There is no undervoltage release, no ground-fault monitoring, and no communication function; this is a straightforward line-protection breaker with remote trip capability. The supplied basic switch is order code 3VA2163-6HN36-0AA0, which is the base breaker without the shunt trip module.
Interrupting Capacity and Selectivity
At 240 VAC the breaker interrupts 242 kA symmetrical; at 415 V and 440 VAC it still manages 187 kA. That drops to 121 kA at 500 VAC and to 3.7 kA at 690 VAC. For a 63 A frame, these numbers mean the breaker can clear a bolted fault upstream without requiring a current-limiting fuse ahead of it — the SCCR of the panel it lives in is effectively limited by the bus bracing, not the breaker. The 3.7 kA at 690 V is the weak point; if your distribution runs at 690 V, verify the available fault current stays under that.
Dimensions and Panel Fit
The breaker footprint is 105 mm wide by 181 mm tall by 86 mm deep. That 86 mm depth is the overall body depth including the arc-chamber housing — it fits standard 200 mm deep distribution enclosures with room for wiring gutters. Width of 105 mm is a three-pole 63 A frame; it occupies three 35 mm DIN-rail module positions if using a DIN adapter, though the 3VA2 series typically bolts directly to a mounting plate in the panel.