The Siemens SENTRON 3VA2110-5MN36-0KL0 is a 3-pole molded case circuit breaker rated for 100 A continuous across the full 40 °C to 70 °C ambient range — no derating needed as the panel warms up. At 240 V it's rated for 187 kA, and at 500 V it still holds 75.6 kA — only at 690 V does it drop to 3.7 kA, which is typical for a 100 A frame at that voltage. This is a motor protection design, so it includes phase failure detection — a critical feature for three-phase motor loads where losing a phase can burn out a winding before the overload relay catches it.
The 105 mm width for a 3-pole 100 A frame is typical. The shunt trip release allows remote tripping from a safety circuit or emergency stop chain.
Power loss is rated at 10 W maximum, which matters for thermal calculations in a sealed enclosure.