Its interrupting capacity reaches 121 kA at 240 V AC, 76 kA at 415 V AC, 53 kA at 440 V AC, and 11.9 kA at 500 V AC — figures that cover most industrial fault-current scenarios up to those voltage levels. The TM210 release has an adjustable long-time pickup (lg) from 32 A to 320 A, so you set the overload threshold to the actual load, not the breaker's nameplate.
The interrupting ratings — 121 kA at 240 V, 76 kA at 415 V, 53 kA at 440 V, 11.9 kA at 500 V — tell you the maximum fault current this MCCB can safely clear at each voltage without welding contacts or rupturing the case. In a 480 V panel with a transformer-fed bus that can deliver 50 kA symmetrical, this breaker has headroom.
Thermal derating and panel fill
The 32 A rating holds from 40 °C to 50 °C ambient; above that it derates to 31 A at 55–60 °C and 30 A at 65–70 °C.