Its interrupting capacity reaches 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 5 kA at 690 V — the 240 V figure is the headline for high-fault applications like transformer secondaries or large motor branch circuits. The ETU350 electronic trip unit handles line protection (no ground-fault or voltage-trip function built in).
Standard SENTRON 3VA2 footprint — no special cutout required. Undervoltage release and auxiliary contacts are factory-integrated; no field-wiring of separate trip modules.
Derating and thermal limits
At 55 °C it derates to 60.6 A, at 60 °C to 58.3 A, at 65 °C to 55.9 A, and at 70 °C to 53.6 A. Maximum power loss is 6.5 W.