MCCB with shunt trip for line protection
A shunt trip release (STL) is integrated, allowing remote tripping via a control voltage — essential for emergency-stop circuits or interlocking schemes where the breaker must open on a signal rather than overcurrent alone. Breaking capacity reaches 75.6 kA at 240 V, 52.5 kA at 415 V, and 11.9 kA at 690 V, so it can interrupt high fault currents across common industrial voltage levels without cascading upstream.
Rated current holds at 40 A from 40 °C through 50 °C, then derates to 39 A at 55–60 °C and 37 A at 70 °C. Dimensions are 130 mm height, 76.2 mm width, and 70 mm depth — a 3-pole footprint that fits standard MCCB mounting slots in SENTRON distribution boards or generic DIN-rail adapters. Maximum power loss is 10.8 W at rated load, which factors into enclosure thermal calculations when grouping multiple breakers in a sealed panel.