It is part of the SIRIUS brand, a well-known industrial control component family. The breaker is rated for a voltage range of 20 to 690 V and offers a Class 10 trip characteristic, meaning it will trip within 10 seconds at 7.2 times the rated current — fast enough to protect standard induction motors during a locked-rotor event. The unit is designed for motor protection and includes phase failure detection, which is critical for preventing single-phasing damage on three-phase motors. It does not include ground fault detection.
The interrupting capacity is 100 kA at 240 V, 13 kA at 400 V, 3 kA at 500 V, and 2 kA at 690 V. For a 400 V panel with an available fault current of 10 kA, this breaker has headroom. The gL/gG fuse backup ratings are 80 A at 240 V, 63 A at 400 V, and 50 A at both 500 V and 690 V — these are the maximum upstream fuse sizes for coordination. The horsepower ratings are 3 hp at 220/230 V, 2 hp at 200/208 V, and 1.5 hp at 230 V — useful for matching to standard North American motor sizes.
The footprint is 45 mm wide, 90 mm high, and 75 mm deep. Clearance requirements: 20 mm upwards, 20 mm downwards, 9 mm to the side, and 0 mm forwards or backwards — meaning it can be butted against a back panel or enclosure wall with no extra space needed. Mounting position is any orientation. Terminals are screw-type for the main current circuit, accepting 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid or stranded wire. Main contact screws are M3.