At 55 °C it derates to 96.25 A, at 60 °C to 92.5 A, and at 70 °C to 85 A. The maximum power loss of 10 W is modest for a 100 A frame; no special ventilation is needed inside a standard enclosure.
Dimensions of 86 mm depth × 105 mm width × 181 mm height place it in the standard SENTRON 3VA frame. The ETU320 release is powered by the line-side current transformers — no external control power needed for the trip unit. The shunt trip (STL) requires a separate 24 VDC or 110–240 VAC signal, depending on the coil variant ordered; verify coil voltage against your control circuit.
