It is a 3-pole unit rated 20 A continuous at 40 °C (derates to 19 A at 65 °C), with a TM210 thermal-magnetic overcurrent release — the thermal element handles overload timing, the magnetic element handles instantaneous short-circuit pickup. The breaking capacity is 121 kA at 240 V AC, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 500 V or 690 V — numbers that define where this breaker can safely interrupt a fault without welding contacts or venting plasma.
Built-in undervoltage release — what that means for the panel
That is useful in safety circuits or motor starters where a loss of control power should drop the load immediately, rather than letting the breaker stay closed and the motor restart unexpectedly when power returns.
Dimensions are 130 mm high, 76.2 mm wide, 70 mm deep — a standard 3-pole MCCB footprint that fits most DIN-rail or panel-mount enclosures without surprises.