Motor protection circuit breaker, SIRIUS series
It is a current-production part, still in the active catalog. Rated Trip Class 10, so it coordinates with standard motor starting profiles — the bimetal trip element allows up to 10 seconds at locked-rotor current before opening. At 240 V it's also 100 kA. The high interrupting rating suits it for installations with large upstream transformers or high available fault current. Rated operational voltage spans 20 to 690 V AC. The motor power rating at 230 V is 0.1 kW. The auxiliary contact ratings: 1 A at 24 V, 0.5 A at 120 V, 0.5 A at 230 V. At 690 V the fuse backup is gL/gG 6 A. The 45 mm width takes one standard modular device position. Mounting position is any orientation. Clearance requirements: 50 mm above and below, 30 mm at the sides, 0 mm forward and backward — so it can be stacked tight front-to-back in a deep enclosure.
Main circuit terminals are screw-type, accepting 2 x 0.5 to 1.5 mm² solid or stranded, or 2 x 0.75 to 2.5 mm². The main contact screws are M3. Maximum switching frequency in AC-3 duty (motor starting) is 15 operations per hour; same for AC-3e. That's typical for a motor-protective device — not a contactor for high-cycle applications. No ground-fault detection on this variant. If ground-fault protection is needed for the motor branch, it must be added externally.