The ETU350 gives you adjustable long-time, short-time, and instantaneous pickup settings — useful when coordinating downstream feeders or matching a motor-start curve without swapping trip units. Breaking capacity runs 242 kA at 240 V AC, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 4 kA at 690 V.
Above that it steps down: 96.25 A at 55 °C, 92.5 A at 60 °C, 88.75 A at 65 °C, and 85 A at 70 °C. If your panel ambient runs 60 °C near the breaker — say, above a VFD stack — plan for the 92.5 A ceiling, not the nameplate 100 A. No rewiring needed if swapping a like-frame unit — the line and load lugs land in the same positions.
Sourced and quoted to order through independent distribution.