It carries a shunt trip release (STL) and a communication function, meaning it can be remotely tripped and integrated into a monitoring network — useful when you need to kill a feeder from a PLC or SCADA without walking the panel.
Interrupting capacity and thermal performance
At 240 V it interrupts 187 kA; at 415 V and 440 V that drops to 121 kA, then 75.6 kA at 500 V, and 3.7 kA at 690 V.
No trip indicator on the front face, so fault status comes from the communication function or a visual check of the handle position.
