At 40 °C it carries a continuous 20 A — the same rating holds through 55 °C, then derates to 19 A at 60 °C and above. That thermal curve means it fits a 20 A feeder without oversizing for warm panel ambient up to 55 °C. Breaking capacity is 121 kA at 240 V, dropping to 75.6 kA at 415 V and 52.5 kA at 440 V — still well above typical 25–50 kA SCCR requirements for North American and European distribution panels. At 690 V it still interrupts 11.9 kA, covering most industrial motor branch circuits.
Built-in auxiliary and undervoltage release
This variant ships with two auxiliary switches plus a trip alarm switch (HQ), and an integrated undervoltage release (UVR). No separate undervoltage module to buy and mount.