Breaking capacity — the real-world fault handling
At 240 V it's also 100 kA, and at 500 V it holds 100 kA. For the high-fault panels common in North America (65 kA or 100 kA at 480 V), this breaker lands squarely in the main feeder class. The fuse backup ratings are gL/gG 32 A at 400 V and 500 V, and gL/gG 25 A at 690 V — so if you need to coordinate upstream fusing, those are the maximum values.
Motor protection specifics — trip class and detection
The breaker also detects phase failure, which is a common cause of motor burnout in three-phase systems. Ground fault detection is not included, so if that's required, an external ground-fault module or a different breaker variant is needed. The rated voltage range is 20 to 690 V, covering low-voltage control circuits up to 690 V line supplies.
Mounting and integration — DIN rail, clearances, terminals
Width is 45 mm — three standard module spaces on a DIN rail. Depth is 97 mm, height 97 mm. Clearance requirements: 50 mm upward and downward, 30 mm at the sides, zero forward and backward. That means you can butt it against a back panel or enclosure wall on the front and rear faces, but need breathing room top and bottom for arc quenching and heat dissipation. Screw-type terminals on the main circuit accept 2× (0.75 to 2.5 mm²) solid or stranded, or 2× 4 mm² — M3 screws.
The lifecycle stage is listed as current — meaning this is an active, in-production part from Siemens.