Description

• Product: Protect Motor From Phase Failure Phase Sequence reserve voltage unbalance 3 phase 380V MK-05 Phase Failure device;
• Rated voltage:220VAC
• 3 phase+neutral:4 wires connection
• The three phase network being protected is used as the device power supply.
• Operating range:(0.9-1.1)×Un
• Rated frequency:50/60Hz
• Output contacts:1 C/O with 8A,2000VA(For resistive load)
• Asymmetry range:5%-15%;3×380VAC
• Tripping time:0.1-10 sec.(adjustable)
• Phase sequence:Available
• Ambient temperature:-5 to+50
• Protection class:IP20
• Installation:Surface mounting or on the mounting rails
• Protection features:
  1.Phase failure
  2.Phase sequence
  3.Voltage unbalance(Both unbalance and delay adjustable)
  4.Insufficient supply.
• One of the common faults faced in industrial plants is overheating and damaging of 3 phase motors due to the phase failure.”Thermic-magnetic device”which is an essential element in motor protection is generally too slow due to both its electromechanical structure and the use of hing current setting range to assure demarrage without tripping.Being designed to eliminate the above disadvantages,MK-05 Phase Failure Devices serve the following protection features:Phase failure,Phase sequence,Voltage unbalance,Insufficient supply.