Please noted: 63A With N 220V for 3*220V+N, Dispaly each phase 220V.Three phase Voltage Current Relay Protector 63A 220V 3P+N Over Under Voltage Relay Current limiter adjustable.Over-voltage protection: Adjustable .Under-voltage protection: Adjustable .Over-Current protection: Adjustable.Asymmetry protection. Phase squence protection.Active time and reconnect time adjsutable. Voltage and current can be manually calibratedCode: Parameter, ValueP1: Power On Time, 1-500SU1: Over Voltage , 230-300VU2: Recovery Voltage , 220-295VU3: Recovery Time , 1-500SU4: Power Off delay Time , 0.1-30SU5: Under Voltage , 140-210VU6: Recovery Voltage , 145-215VU7: Recovery Time , 1-500SU8: Power Off delay Time , 0.1-30SU9: Voltage Deviation , -9.5 to 9.5%U10: Asymmetry , 20-99VU11: Phase squence protect , on/offC1: Over Current , 3-63AC2: Recovery Time, 1-500SC3: Power Off delay Time, 0.1-30SC4: Current Deviation, -9.5 to 9.5%C5: Continues Over Current Times, 1-20 offsize: 91 x 67 x 90mmMaterial: PC plasticcolour: grey + whitePackage Contents:1 x Voltage protectorOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.