It is the line-protection version — meaning it guards feeder and distribution circuits against overload and short circuit, not motor-protection curves. The interrupting capacity hits 52.5 kA at 240 V and 32 kA at 415 V, so it handles high-fault utility feeds without cascading upstream. The 4-pole design includes a switched neutral — the N pole opens and closes with the phases, not just a solid link. That matters for TN-S or IT systems where you need full isolation on all conductors.
Above that it derates linearly: 96 A at 55 °C, 94 A at 60 °C, 92 A at 65 °C, and 90 A at 70 °C. Plan the load schedule accordingly.
The breaker measures 101.6 mm wide, 130 mm tall, and 70 mm deep — a standard 4-pole MCCB footprint that fits Siemens' SENTRON mounting plates and busbar systems. The undervoltage release (UVR) is built in, so if your safety circuit drops the control voltage, this breaker trips without a separate shunt trip module.