The interrupting capacity at 240 V is 187 kA, dropping to 121 kA at 415 V and 440 V, then 75.6 kA at 500 V, and 17 kA at 690 V — these are the fault-clearing limits that define its placement in a distribution panel's selectivity study.
The 100 A rating holds flat from 40 °C through 50 °C, then derates to 96 A at 55 °C, 94 A at 60 °C, 92 A at 65 °C, and 90 A at 70 °C. The ETU350M electronic overcurrent release provides adjustable thermal-magnetic protection tailored for motor starting inrush. Two auxiliary switches (HQ type) are fitted for remote status indication. Maximum power loss is 75 W — relevant for thermal calculations inside a sealed enclosure; that heat must be dissipated to stay within the derating curve above.
Physical integration
Verify gland-plate clearance for the 86 mm depth, especially in shallow enclosures.