The breaker carries a 220 kA breaking capacity at 240 V AC, which drops to 154 kA at 415 V and 121 kA at 440 V, so it handles high fault-current scenarios common in industrial main feeders or large sub-distribution boards.
At 415 V it still delivers 154 kA, and at 690 V it holds 17 kA, so it remains usable in 400 V class systems with substantial transformer capacity.
Thermal performance and derating
At 60 °C it derates to 15 A, and at 70 °C it stays at 15 A, so a panel near a heat source or in a hot climate still delivers 15 A continuous. Maximum power loss is 10.6 W, which is modest for a 3-pole MCCB of this class and helps keep internal cabinet temperatures manageable.
The breaker measures 130 mm high, 76.2 mm wide, and 70 mm deep — a standard 3-pole MCCB footprint that fits most Siemens SENTRON mounting bases and panel cutouts.
It is a standard catalog item in the SENTRON 3VA1 family.