Its breaking capacity reaches 121 kA at 240 V AC, 75.6 kA at 415 V, and 52.5 kA at 440 V, which means it can safely interrupt high fault currents across common low-voltage distribution voltages — critical for selectivity coordination in a main or sub-main breaker position. At 690 V the breaking capacity is still 11.9 kA, covering industrial supply voltages where standard MCBs would not hold. Maximum power loss is 14.6 W, which matters for thermal management inside a sealed or high-density enclosure.
Integrated releases and auxiliary switching
The shunt trip allows the breaker to be opened from a safety circuit, emergency stop, or fire alarm panel without an operator at the handle.
The breaker carries 50 A continuously up to 50 °C ambient, then derates to 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C.
Width is 76.2 mm (3 in), depth 70 mm (2.76 in), height 130 mm (5.12 in) — a standard 3-pole MCCB footprint that fits existing SENTRON panel cutouts and busbar systems without re-drilling.