The TM240 overcurrent release handles the thermal-magnetic trip curve, and the breaker includes an undervoltage release (UVR) plus a 2-auxiliary-switch + 1-trip-alarm-switch HQ auxiliary contact block. Breaking capacity hits 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V — numbers that tell you this thing clears faults hard and fast, which matters when you're coordinating downstream feeders and need the SCCR headroom.
Thermal derating — the real-world current
At 55 °C it drops to 153.6 A, at 60 °C to 150.4 A, at 65 °C to 147.2 A, and at 70 °C to 144 A.
The auxiliary contact block (2 aux + 1 trip alarm HQ) gives you status feedback for the PLC or annunciator panel.
