Line protection MCCB with shunt trip and auxiliary switches
Its 3-pole design carries a breaking capacity of 187 kA at 240 V AC, 121 kA at 415/440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V, giving you selectivity headroom for high-fault installations like transformer secondaries or large motor control centers. The unit includes an integrated shunt trip (STL) and two auxiliary switches (HQ), so it arrives ready for remote tripping and status feedback without adding accessory modules.
The depth of 86 mm (3.39 in) leaves clearance for rear-access wiring in enclosures with shallow gland plates. Maximum power loss is 4 W, so heat buildup in a sealed cabinet is minimal.
