Rated 100 A continuously at 40 °C ambient, with minimal derating up to 50 °C (still 100 A), then tapering to 91 A at 70 °C. The insulation voltage is rated 800 V, and the breaking capacity ranges from 52.5 kA at 240 V down to 7.5 kA at 690 V — covering most low-voltage fault scenarios in industrial and commercial mains.
The breaker measures 70 mm deep, 101.6 mm wide, and 130 mm high — a standard 4-pole MCCB footprint that fits Siemens SENTRON mounting accessories and most DIN-rail or panel-mount enclosures. The 101.6 mm width (4 inches) is the critical dimension for multi-pole ganging in a distribution board; verify the busbar or line-side lug spacing matches before committing the BOM.
