Siemens 3VA2010-5JQ32-0AD0 — SENTRON MCCB for Line Protection
Interrupting capacity is the headline spec here: 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. For a 100 A frame, those numbers place it in the high-interrupting category — it handles fault currents that would weld a standard MCCB's contacts shut. The 3-pole design suits three-phase distribution. The auxiliary switches are wired for summation current formation on the ground-fault monitoring version, so if ground-fault detection is part of the scheme, the breaker's internal CT arrangement is already configured for it.
Dimensions: 181 mm height, 105 mm width, 86 mm depth. Depth of 86 mm leaves clearance for rear-connected busbars in a typical 200 mm deep enclosure.