It is a 3-pole unit rated for 100 A continuous current at ambient temperatures up to 70 °C without derating — a solid thermal budget for a motor branch circuit in a warm enclosure. The adjustable trip class (Tc CLASS 10A, 10E, 20E) lets you match the breaker's thermal memory to the motor's starting profile — Class 10 for fast-starting loads like pumps, Class 20 for high-inertia fans or conveyors.
Interrupting capacity — where it fits
This breaker carries a very high interrupting capacity: 330 kA at 240 V AC, 242 kA at 415/440 V, and 187 kA at 500 V. At 690 V it drops to 3.7 kA — still adequate for most motor branch circuits at that voltage but worth noting if your system fault current is high. The high 240 V rating makes it a strong candidate for 277/480 V panelboards where the upstream transformer can deliver serious fault current.
Dimensions are 105 mm wide, 181 mm tall, and 86 mm deep — a standard 3-pole MCCB footprint for DIN-rail or panel-mount installation. The 86 mm depth (3.39 in) leaves room in a 200 mm deep enclosure for wiring and accessories behind the breaker.
The lifecycle stage is listed as current — meaning this is an active, in-production catalog item from Siemens. For a BOM line that needs a 100 A motor-protection MCCB with adjustable trip class, this part is a standard, specifiable choice.