Interrupting capacity — the real-world number
That 121 kA at 240 V is the headline, but the more relevant figure for most industrial panels is 75.6 kA at 415 V and 52.5 kA at 440 V. If your service entrance or downstream fault current is north of 50 kA, this breaker handles it without cascading upstream. At 500 V and 690 V it still clears 11.9 kA — enough for most motor branch circuits on those voltage classes.
Thermal derating — don't ignore it
The 32 A rating holds steady from 40 °C up to 50 °C. At 55 °C it drops to 31 A, and at 65–70 °C it's 30 A. If you're packing this breaker into a hot enclosure or next to transformers, plan for that 2 A derate. The TM210 release is factory-set; no field adjustment.
Panel fit and wiring
Footprint is 76.2 mm wide, 130 mm tall, 70 mm deep — that's a standard 3-pole MCCB slot on a DIN rail or panel-mount adapter. Rated insulation voltage is 800 V, so it's comfortable in 400/480 V systems with headroom. The shunt trip means you'll need a control wire run; no undervoltage release on this variant.