SENTRON 3VA2 MCCB with integrated shunt trip
It carries a shunt trip release (STL) as the auxiliary release — meaning it can be tripped remotely by applying a control voltage, which is useful for emergency-off circuits or interlocking schemes where you need to drop the breaker without a manual handle pull. Breaking capacity is 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3 kA at 690 V.
The breaker measures 105 mm wide, 181 mm high, and 86 mm deep — a standard 3-pole MCCB footprint that fits SENTRON 3VA2 mounting bases and busbar systems. The 86 mm depth (3.39 in) is shallow enough for most 600 mm deep enclosures without crowding the door or cable gutters. If you need UVR or GF protection, you would step to a different 3VA2 order code with those options built in.
Maximum power loss is 5.4 W at rated current — negligible for panel heat budgeting.