The Siemens SENTRON 3VA1132-5EF32-0JC0 is a 3-pole molded case circuit breaker rated for line protection. It carries a continuous current of 32 A at 40 °C and delivers a 187 kA interrupting capacity at 240 V — that's the rating you rely on for fault clearance on a 240 V feeder, not a number to derate from. The 800 V rated insulation voltage confirms it's built for 480 V or 600 V class panels as well, with the interrupting curve dropping to 121 kA at 415 V and 75.6 kA at 440 V. At 690 V it still holds 17 kA. This breaker goes into a distribution panel or motor control center on a DIN rail or mounting plate; the 70 mm depth and 76.2 mm width fit standard Siemens 3VA panel footprints.
Ratings and so-what
The 32 A rating holds flat from 40 °C through 50 °C — no derating needed in a warm panel. At 55 °C it drops to 31 A, at 70 °C to 30 A. That's a thermal curve you can size a feeder against without guessing. The shunt trip release (STL) lets you remotely trip the breaker via a control signal; the two auxiliary switches (HQ) provide status feedback to a PLC or annunciator. No undervoltage release is fitted, so a control-voltage loss will not automatically open the breaker — that is by design for this variant. No trip indicator, no ground-fault monitoring, no communication function. It is a straightforward line-protection MCCB with the interrupting muscle for high-fault installations.
Integration and approvals
Mounts in a standard panel enclosure on a DIN rail or direct plate. The 70 mm depth and 76.2 mm width match the 3VA family cutout. Operating temperature range is -25 °C to 70 °C; storage from -40 °C to 80 °C. Maximum power loss is 10.6 W — factor that into your panel thermal budget. The insulation voltage rating of 800 V means it meets IEC 60947-2 requirements for use in 480/277 V and 600/347 V systems. No communication function, so no fieldbus wiring needed — this is a pure power distribution device.