The interrupting ratings are the headline: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V. The thermal derating curve holds a flat 80 A from 40 °C through 50 °C; above that it steps down to 76.8 A at 55 °C, 75.2 A at 60 °C, 73.6 A at 65 °C, and 72 A at 70 °C.
The 101.6 mm width is a standard 4-pole MCCB footprint — it occupies four 25.4 mm (1-inch) module positions on a DIN rail or panel-mount base.
Auxiliary contacts and release options
The TM210 release is fixed — not field-interchangeable. If your application requires remote tripping or status feedback beyond the built-in alarm contact, an external add-on module would be needed.
Environmental limits
Mechanical endurance is listed at 15,000 operations — adequate for a main breaker cycled infrequently, but not rated for frequent switching duty.