The Siemens SENTRON 3VA2110-0HM42-0AA0 is a 4-pole molded case circuit breaker rated for 100 A continuous current across the full ambient range from 40 °C through 70 °C — no derating needed up to the panel's maximum operating temperature. That 100 A holds steady at every 5 °C step, so the breaker's thermal behaviour is flat through the typical enclosure rise. The ETU330 electronic trip unit gives you adjustable N-conductor protection (OFF, 50%, or 100%) and an initial setting of 20 A, with a full-scale range up to 100 A.
Footprint and panel integration
Trip unit and protection features
The ETU330 electronic overcurrent release provides adjustable N-conductor protection — set to OFF, 50%, or 100% of the phase current — which is useful for 4-wire systems where neutral overload protection is required. Ground-fault monitoring uses summation current formation on L + N conductors, so it can detect residual currents without an external module.