The SENTRON 3VA2325-6HN32-0HH0 is a 3-pole molded case circuit breaker (MCCB) rated for 250 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Breaking capacity is the headline here: 242 kA at 240 VAC, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 7.5 kA at 690 V. There is no undervoltage release fitted on this variant.
Dimensions: 248 mm height, 138 mm width, 110 mm depth. The 110 mm depth includes the rear arc chamber and terminal clearance; verify gland-plate depth if the panel is shallow. That covers most indoor and sheltered outdoor enclosures in temperate and industrial climates.