Phase Failure Relays

These relays are suitable for monitoring incoming 3-phase supply from Mains (Electricity distribution line). Being independent of load, they can be used for any HP/KW rating of load. These relays are suitable for monitoring incoming 3-phase supply from Mains (Electricity distribution line). Being independent of load, they can be used for any HP/KW rating of load.

FEATURES

  • Fixed/adjustable unbalance settings
  • Fixed/adjustable under voltage/over-voltage settings
  • Fixed/adjustable trip delays
  • Built-in or external power supply
  • Resetting Auto / Manual / Remote
  • Output contacts : 1 CO or 2 CO
  • Choice of enclosures (DIN-Rail,  Flush, Plug-in)
  • Models with Micro-Controller based design
  • 2 Line Alpha-Numeric LCD display (For F3 VSR4 model)
  • Serial Communication (RS 232/485) Port (for F3 VSR4 model)
  • Use of SMD Technology
  • User-friendly LED indications

PROTECTIONS / FUNCTIONS

  • Phase Failure [Phase Loss/Single Phasing]
  • Phase sequence reversal
  • Voltage Unbalance
  • Under Voltage
  • Over Voltage
  • Dry Run

ORDERING INSTRUCTIONS

  • Product Family Name
  • Model Name
  • System Supply Voltage & Frequency
  • Aux. Supply / Control Supply Voltage