It is a 4-pole, 250 A fixed-rated unit with a TM240 thermal-magnetic release. Interrupting capacity is voltage-dependent: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, 17 kA at 500 V, and 11.9 kA at 690 V. Thermal derating is published from 40 °C up: full 250 A through 50 °C, then 243 A at 55 °C, 237 A at 60 °C, 230 A at 65 °C, and 223 A at 70 °C.
Panel fit and auxiliary complement
Footprint is 140 mm wide, 158 mm high, 70 mm deep. That's a standard SENTRON 3VA form factor — fits the same DIN-rail or screw-mount pattern as other 3VA breakers in this frame. Depth of 70 mm means it clears most shallow enclosures without a gland-plate conflict. Ships with three HQ auxiliary switches built in. The basic switch assembly is order code 3VA12254GF420AA0 — useful if you're ordering a spare mechanism separately.