It carries a 121 kA breaking capacity at 240 V, 75.6 kA at 415 V, and 52.5 kA at 440 V — figures that govern its fault-clearing capability in low-voltage distribution panels. The TM240 overcurrent release provides thermal-magnetic protection for line (feeder) duty, not motor or generator protection.
Ratings and thermal derating
At 55 °C it derates to 120 A, at 60 °C to 117.5 A, at 65 °C to 115 A, and at 70 °C to 112.5 A.
Integration notes
Width is 76.2 mm (roughly 3 inches), height 130 mm, depth 70 mm — fits the standard 3-pole MCCB footprint in most low-voltage switchboards.