The 2x1c/o contact configuration gives two independent changeover outputs, which can be wired to signal a fault to a PLC input and simultaneously drop out a contactor coil — a common setup for motor protection circuits. As a motor load monitor, it continuously measures the current drawn by the motor and trips when the load deviates from the set threshold, catching mechanical jams, belt slips, or pump cavitation before they cause a line-down event.
Deployment context
Because it monitors the motor load via an external current transformer (not included), it can be retrofitted into existing motor starters without breaking the main power circuit.