The Siemens SENTRON 3VA2163-8JP32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 63 A continuous current across the full -40 °C to 70 °C operating range — no derating needed up to 70 °C ambient. It carries an ETU550 electronic trip unit with adjustable long-time (tr 0.5–25 s) and short-time (tsd max 0.5 s) delay settings, giving you curve-shaping flexibility for selective coordination downstream.
Interrupting ratings — what they mean for panel SCCR
This MCCB delivers 440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 53 kA at 690 V. Those are the maximum fault currents the breaker can safely interrupt at each voltage level — critical numbers when you're stamping the panel SCCR label. At 415 V, 330 kA covers most industrial service-entrance and distribution scenarios without needing a current-limiting fuse upstream.
Panel fit and integration
Dimensions are 105 mm wide, 181 mm high, 86 mm deep — a standard 3-pole MCCB footprint that drops into most DIN-rail or panel-mount assemblies. Front face carries IP40 protection, so it's suited for enclosed distribution boards where tools or fingers won't reach live parts. Communication function is built in, meaning it can talk to a higher-level system for metering or remote trip indication without an add-on module.
Endurance and power loss
Rated for 20,000 latching operations — that's mechanical endurance, not electrical at full load, but it tells you the mechanism is built for years of switching in a distribution panel. Maximum power loss is 3.1 W, which keeps the internal temperature rise low in a crowded enclosure.