Siemens 3VA1132-6EE42-0AA0 — 32 A SENTRON MCCB, 4-Pole, 220 kA IC at 240 V
The Siemens 3VA1132-6EE42-0AA0 is a SENTRON molded case circuit breaker rated for continuous current Iu of 32 A, with a TM220 thermal-magnetic overcurrent release. Its 4-pole construction handles three-phase plus neutral, and the interrupting ratings climb to 220 kA at 240 V, 154 kA at 415 V, and 121 kA at 440 V — figures that govern fault-clearing capability in high-available-fault-current panelboards. The front face carries IP40 protection, acceptable for enclosed panel mounting where no water ingress is expected.
What the ratings mean for panel fit
The 32 A continuous rating holds across 45 °C to 50 °C ambient without derating; above that the curve drops by 1 A per 5 °C step to 30 A at 70 °C. For a panel running at 60 °C ambient — not uncommon in a sealed enclosure near process heat — the breaker still carries 31 A, so a 32 A load requires headroom or ventilation. The adjustable li setting goes up to 320 A for the magnetic trip, letting you tune short-circuit protection to the downstream cable impedance without changing the breaker frame. Dimensions are 101.6 mm wide by 130 mm tall by 70 mm deep — a 4-pole MCCB that fits the standard SENTRON panel footprint. The 10.6 W maximum power loss at rated load matters for thermal coordination inside a densely packed enclosure; if you are grouping several breakers, sum the losses against the cabinet's dissipation rating.