Please note: 63A with N 220V for 3*220V+N, displays each phase 220V. Three-phase voltage current relay protector 63A 220V 3P+N over and under voltage relay with adjustable current limiter. Over-voltage protection: Adjustable. Under-voltage protection: Adjustable. Over-current protection: Adjustable. Asymmetry protection. Phase sequence protection. Active time and reconnect time adjustable. Voltage and current can be manually calibrated. Code: Parameter, Value P1: Power, 1-500S U1: Over Voltage, 230-300V U2: Recovery Voltage, 220-295V U3: Recovery Time, 1-500S U4: Power Off Delay Time, 0.1-30S U5: Under Voltage, 140-210V U6: Recovery Voltage, 145-215V U7: Recovery Time, 1-500S U8: Power Off Delay Time, 0.1-30S U9: Voltage Deviation, -9.5 to 9.5% U10: Asymmetry, 20-99V U11: Phase Sequence Protect, on/off C1: Over Current, 3-63A C2: Recovery Time, 1-500S C3: Power Off Delay Time, 0.1-30S C4: Current Deviation, -9.5 to 9.5% C5: Continuous Over Current Times, 1-20 off Size: 91 x 67 x 90mm Material: PC Plastic Color: Grey + White Package Contents: 1 x Voltage Protector Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3cm.