MCCB with UVR for line protection
The Siemens 3VA1132-6EF32-0BA0 is a SENTRON molded case circuit breaker (MCCB) rated 32 A continuous at 40 °C through 50 °C, with a slight thermal derating to 30 A at 70 °C. The TM240 overcurrent release provides fixed thermal-magnetic protection — thermal trip for overloads, magnetic instantaneous trip for short-circuits.
At 415 V it's 154 kA, at 440 V it's 121 kA, and at 500 V and 690 V it holds 17 kA. That steep drop above 500 V means the breaker is best applied on 240 V to 480 V systems where the available fault current is high; at 690 V the 17 kA rating still suits most industrial distribution but needs coordination with upstream fuses or breakers if the SCCR exceeds that.
Width 76.2 mm (3 in), depth 70 mm (2.76 in), height 130 mm (5.12 in).
Maximum power loss is 13.1 W at rated current. In a sealed enclosure with multiple breakers side-by-side, that heat adds up — the thermal derating curve above 50 °C (32 A down to 30 A at 70 °C) should be factored into the panel cooling calculation.