What this MCCB is and where it fits
The Siemens 3VA1132-6EF32-0AC0 is a SENTRON 3-pole molded case circuit breaker rated 32 A with a TM240 thermal-magnetic release, designed for line protection in distribution panels and industrial switchboards. Its 220 kA breaking capacity at 240 VAC handles high-fault-current scenarios like transformer secondaries or large motor control centers, while the 154 kA at 415 VAC and 121 kA at 440 VAC cover common industrial voltages across global installations. The TM240 release provides fixed thermal and magnetic trip settings, so no adjustment dials to worry about — set it and forget it for a dedicated load.
Current derating and thermal management
Rated 32 A continuously at ambient temperatures up to 50 °C, then derates to 30 A at 65–70 °C — a 6% drop across the upper range. That means in a warm panel (say 55 °C) you still get 31 A, so the breaker doesn't force a premature upsize. Maximum power loss is 10.6 W per pole — modest enough that side-by-side mounting in a multi-breaker lineup won't create a hot spot, but still worth factoring into the enclosure thermal budget.
Physical fit and panel integration
Measures 130 mm high, 76.2 mm wide, 70 mm deep — a standard 3-pole MCCB footprint that drops into most SENTRON distribution blocks and panelboards without re-drilling the mounting plate. Comes with two built-in HQ auxiliary switches for remote status indication; no ground-fault monitoring module included, so if you need GF protection that's a separate add-on.
Lifecycle and sourcing posture
Listed as current production — no phase-out or last-time-buy notice. Standard catalog item in the SENTRON 3VA line.