It carries a 20 A continuous current at 40 °C with a TM210 thermal-magnetic overcurrent release, and delivers 121 kA interrupting capacity at 240 V — enough to handle high-fault utility feeds without cascading upstream.
Short-circuit ratings drop as system voltage rises: 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V. Thermal current holds flat at 20 A from 40 °C up to 50 °C, then derates linearly to 18 A at 70 °C.
The undervoltage release (UVR) is factory-fitted — verify coil voltage against the panel control supply before wiring.
Integration and footprint
Dimensions: 130 mm height, 76.2 mm width (roughly 3 inches — three-pole wide), 70 mm depth. Auxiliary contact version is 2 HQ switches — these are changeover contacts rated for low-level signal switching back to a controller input. No communication function or phase-failure detection on this variant; it's a pure thermal-magnetic breaker with remote trip indication via the aux contacts.