The ETU350M electronic trip unit handles the overload and short-circuit curves, with phase failure detection built in.
The interrupting rating drops as voltage climbs: 330 kA at 240 V, 242 kA at both 415 V and 440 V, 187 kA at 500 V, and 52.5 kA at 690 V. If your system runs at 500 V, the 187 kA rating still gives healthy headroom for most applications.
Above that, it starts to taper: 60.48 A at 55 °C, 59.22 A at 60 °C, 57.96 A at 65 °C, and 56.7 A at 70 °C. Maximum power loss is 75 W, so account for that heat in the panel thermal budget.
Auxiliary contacts and releases
The integrated auxiliary trip is order code 3VA9608-0BB24. The supplied basic switch is 3VA2163-7MN32-0AA0. The UVR drops the breaker on loss of control voltage — standard for safety circuits where a power failure must open the motor circuit. No ground fault monitoring or communication function on this version.
Panel builders: the 75 W heat dissipation means you need ventilation or forced air if the enclosure is sealed.