MCCB for line protection with electronic trip
The Siemens 3VA2163-5KP42-0AA0 is a SENTRON molded case circuit breaker (MCCB) designed for line protection, carrying a 63 A continuous rating that holds flat from 40 °C through 70 °C — no derating needed across typical panel ambient temperatures. Its ETU850 electronic overcurrent release provides adjustable trip curves and communication capability, making it suitable for selective coordination studies and integration into power monitoring schemes. The 4-pole construction handles three-phase plus neutral switching, common in North American and European distribution panels where the neutral must be switched alongside the phases.
Breaking capacity across voltage levels
Rated short-circuit breaking capacity reaches 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V — the steep drop at 690 V means this frame is best applied on 240–500 V systems where fault current headroom is the priority. The 63 A frame with 187 kA at 240 V gives strong series rating potential downstream of a larger upstream device, reducing the need for fully rated breakers throughout the distribution.
Physical fit and environmental limits
Dimensions are 181 mm high, 140 mm wide, 86 mm deep — a standard 4-pole MCCB footprint that mounts directly onto DIN rail or panel-mount adapters in the SENTRON range. Operating temperature spans -25 °C to 70 °C, with storage from -40 °C to 80 °C. Front face carries IP40 protection — suitable for enclosed panel installation where the breaker is not exposed to washdown or dust ingress. Maximum power loss is 4 W, negligible for panel thermal budgeting in most enclosures.