Motor protection relay terminals connect CT secondary circuits, voltage inputs, trip outputs, and alarm contacts for providing overload, phase loss, phase reversal, and earth fault protection for 3-phase motors.
| Pin | Name | Function | Type |
|---|---|---|---|
| CT_L1 | CT L1 | Phase L1 current transformer input | ADC |
| CT_L2 | CT L2 | Phase L2 current transformer input | ADC |
| CT_L3 | CT L3 | Phase L3 current transformer input | ADC |
| TRIP+ | TRIP+ | Trip output relay positive | I/O |
| TRIP- | TRIP- | Trip output relay negative | I/O |
| ALARM | ALARM | Alarm relay output | I/O |