Siemens 3VA2110-5MN36-0KH0 SENTRON MCCB 100A, 187kA at 240V

MCCB with ETU350M — 100 A, 3-pole, high-interrupting

Its interrupting capacity scales with system voltage: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 17 kA at 690 V — these figures govern where it can be applied for fault clearance without upstream coordination failure.

Rated 100 A from 40 °C through 50 °C ambient, then derates linearly: 96 A at 55 °C, 94 A at 60 °C, 92 A at 65 °C, 90 A at 70 °C. Maximum power loss is 75 W. In a sealed enclosure or high-ambient panel, that derating curve is the binding constraint — not the nameplate 100 A.

Trip unit and auxiliary configuration

ETU350M overcurrent release provides phase-failure detection and a voltage-trigger input.