MCCB for high-fault line protection
The Siemens SENTRON 3VA2110-6HL32-0AJ0 is a 3-pole molded case circuit breaker rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. The interrupting capacity at 240 V is 242 kA, dropping to 187 kA at 415 V and 440 V, then to 121 kA at 500 V, and 3.7 kA at 690 V.
Thermal performance and auxiliary switching
That simplifies coordination studies: the breaker's thermal-magnetic trip characteristic is stable across the rated operating range of -25 °C to 70 °C. The basic switch assembly is order code 3VA21106HL320AA0, so if you're replacing just the switching mechanism, that's the sub-component to source.
The 86 mm depth means it projects less than 90 mm from the mounting plane, which matters for shallow enclosures or when you need clearance behind a gland plate. Maximum power loss is 10 W, so ventilation in a sealed panel is not a concern at rated load.