In three phase systems, when all phases are in correct order and phases are balanced, Normal LED turns on and the relay is energized. Missing Phase : When at least one of phases L1, L2, L3 is missing, phase off LED turns on and relay de-energizes its contact. Phase Sequence : If the phase sequence is correct, Relay On LED turns on and relay energizes its contact. If phase order is changed, Phase Off LED turns on and relay de-energizes its contact.
Phase failure Ok Voltage Unbalance %6 / %20 Phase Sequnce Control Ok Over Voltage Protection No Under Voltage Protection No ON delay(Ts) No OFF delay (Ts) No Neutral failure detection No System Voltage 380V AC3~(50/60Hz) Umax=(1,30)xUn Umin=(0,70)xUn Contact Ambient Temperature -5C -+ 50C Dimensions Connection PTC protection Ok Quantity in 1 box 26
