It is a 3-pole unit rated at 250 A continuously at 40 °C, with no derating required up to 70 °C — the current rating holds flat across the entire operating temperature range. Breaking capacity is specified by voltage: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 7.5 kA at 690 V. The 187 kA figure at 240 V is the headline number — it tells you this breaker can handle very high available fault current on a 240 V system without needing a current-limiting upstream device. At 690 V the 7.5 kA rating is lower, but that voltage is uncommon for motor branch circuits this breaker would typically protect. The part includes an undervoltage release (UVR) as the auxiliary release, plus a complement of auxiliary switches: 2 auxiliary switches, 1 trip alarm switch, and 1 electrical alarm switch. A trip indicator is present on the front face for quick visual status on the panel door.
Dimensions are 248 mm high, 138 mm wide, 110 mm deep. The 138 mm width is the standard 3-pole MCCB footprint for this SENTRON frame size — it occupies three adjacent 45 mm-wide DIN positions if panel-mounted on a mounting plate, or bolts directly into the enclosure backplane. Depth of 110 mm (4.33 in) leaves room behind a 200 mm-deep enclosure for wiring and the UVR coil connections. Maximum power loss is 40 W.