What this MCCB carries and where it fits
The Siemens 3VA1132-3EF36-0CA0 is a SENTRON molded case circuit breaker (MCCB) rated for 32 A continuous current at 40 °C, with a 3-pole configuration and a TM240 thermal-magnetic overcurrent release. It's built for line protection — meaning it guards feeders and downstream distribution against overloads and short circuits, not motor or generator duty. The 70 mm depth and 76.2 mm width are standard for the 3VA frame, so it drops into existing SENTRON panel layouts without re-drilling. The front face carries an IP40 rating, acceptable for enclosed distribution boards but not for washdown zones.
Breaking capacity — what the numbers mean for your fault level
This MCCB interrupts 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 10.5 kA at 690 V. Those are the rated ultimate short-circuit breaking capacities (Icu) per IEC 60947-2. For a 415 V distribution panel, 52.5 kA covers most industrial service-entrance and sub-feed applications; at 690 V the 10.5 kA figure still handles motor branch circuits with moderate fault current. The 32 A continuous rating holds steady up to 50 °C ambient, then derates to 30.72 A at 55 °C and 28.8 A at 70 °C — a factor to check if the breaker sits near transformers or drives inside a warm enclosure.
Undervoltage release and auxiliary options
The 3VA1132-3EF36-0CA0 ships with an undervoltage release (UVR) as the auxiliary release — part number 3VA9608-0BB24 for the integrated trip unit. That UVR trips the breaker when supply voltage drops below a threshold, which is standard for safety circuits that need to drop a load on power loss. There's no auxiliary contact block fitted from the factory, so if you need status feedback to a PLC or alarm panel, you'll add a separate auxiliary switch. No communication module, no ground-fault monitoring, and no phase-failure detection on this variant — it's a straightforward thermal-magnetic line-protection breaker.