It carries a TM240 thermal-magnetic overcurrent release — the thermal element handles overloads, the magnetic element clears short-circuits — and is rated 20 A continuously at 40 °C ambient, derating to 19 A at 60 °C and above.
Breaking capacity across voltages
Breaking capacity drops with system voltage: 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V. For a 400 V panel, the 52.5 kA figure gives substantial headroom over a typical 25–36 kA available fault current at the service entrance.
The lifecycle stage is listed as current — this is an active catalog part, not subject to phase-out or last-time-buy. No official successor exists because none is needed.
Dimensions: 130 mm height, 76.2 mm width (3 in), 70 mm depth (2.76 in). The 3-pole width matches the standard 3-inch-per-pole footprint for SENTRON 3VA frames. Front IP40 protection class means the breaker is protected against tools and solid objects >1 mm but not sealed against moisture — mount inside a rated enclosure for wet or washdown areas.