What this MCCB carries — and what it means for your panel
The Siemens 3VA2216-7MN32-0KA0 is a SENTRON molded case circuit breaker (MCCB) designed specifically for motor protection, rated a full 160 A continuously from 40 °C up to 70 °C — no derating needed across that range, which simplifies panel sizing in warm cabinets or near heat sources. It breaks up to 330 kA at 240 V AC, 242 kA at 415 V, and still handles 187 kA at 500 V — high enough for most industrial distribution boards where fault currents can spike near the transformer secondary. The built-in shunt trip (STL) release lets a remote signal — from an emergency-stop circuit or a PLC output — trip the breaker without a manual action, common in safety circuits or automated shutdown sequences. Phase failure detection is included, so the breaker will trip if one phase drops out, protecting three-phase motors from single-phasing damage.
Panel fit and integration
The 3VA2216-7MN32-0KA0 measures 105 mm wide, 181 mm high, and 86 mm deep — a standard 3-pole MCCB footprint that fits most DIN-rail or panel-mount enclosures without re-drilling. Operating temperature range is -25 °C to 70 °C; storage range extends from -40 °C to 80 °C, so it can sit in an unheated warehouse or a rooftop cabinet. Maximum power loss is 19.7 W — factor that into enclosure ventilation if the panel is densely packed.