Any mounting position is allowed. Dimensions are 55 mm wide, 140 mm high, 149 mm deep. The 55 mm width is three 18 mm module spaces, so it occupies three slots on a DIN rail. Main circuit terminals accept screw-type connections, with M6 bolts for the main contacts.
Breaking capacity varies by voltage: 25 kA at 240 V and 400 V, 6 kA at 500 V, 3 kA at 690 V. For AC circuits, the figures are higher: 50 kA at 240 V and 400 V AC, 12 kA at 500 V AC, 5 kA at 690 V AC. These numbers tell you where this breaker can sit in a distribution hierarchy — at 400 V it has headroom for most sub-distribution boards, but at 690 V the 3 kA rating means it needs upstream current-limiting protection if the prospective fault current exceeds that.
Environmental and storage specs
The -50 °C lower limit is unusual for a circuit breaker; most stop at -25 °C, so this one handles cold environments like refrigerated warehouses or outdoor enclosures in northern climates.