Breaking capacity is 242 kA at 240 V AC, dropping to 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3 kA at 690 V. The 3 kA at 690 V is a reminder that this is a 3-pole breaker wired for line-to-line faults on a 690 V system; for 690 V phase-to-phase applications, verify that the available fault current stays under that ceiling.
Built-in accessories and wiring
The two HQ auxiliary contacts give status feedback (open/closed) to the control system. No communication module is fitted, so this is a straight electromechanical MCCB — no IoT gateway, no Modbus. For a panel that needs remote monitoring, you would add an external power meter or a separate communication-capable breaker.
That depth is the overall body depth including the rotary handle and terminals — check your enclosure depth before sliding it onto the DIN rail or mounting plate. The width of 105 mm for a 3-pole 100 A MCCB is standard for this SENTRON frame size; it matches the cutout spacing used across the 3VA2 family.