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Products I Monitoring Relays I F3 VSR1



F3 VSR1
  3-Phase 3-Wire voltage monitoring & display,
  Phase Failure, Unbalance,
  Phase Sequence, under voltage, Over Voltage,
  Auto / Manual Reset,
  Adjustable unbalance trip setting,
  Adjustable under/over voltage settings,
  Adjustable trip delay,
  RS232 communication port,
  2 CO output relay, True RMS Values
Supply Voltage
  System : 380 / 415 V AC (3 Ph - 3 W)
  Auxillary : 90-270 V AC/DC

Output Relay Contacts : 2 CO & RS 232 (optional)

Trip Setting    
  Phase Sequence : Yes
  Phase Unbalance : 1 - 10 % (adjustable)
  Under Voltage : 1 - 80V below nominal voltage
  Over Voltage : 1 - 60V above nominal voltage

Trip Time Delay : 1 - 60 secs. or 1-5 mins select

Reset : Manual / Auto

Display : Backlit LCD (16 x 2 character)

Monitoring : Phase to Phase

Weight : 800 gms.

Dimensions (mm)    
  Overall (L x W x D) : 96 x 96 x 130
  Mounting (L x W) : 92 x 92

    RP, UV / OV and UB Protection override facility provided

Note:
Wherever not specified Contact Rating : 5A @ 230 V AC (resistive)
Timing/ Relay logic Diagram

Electrical Connection Diagram

F3 VSR1 F3 VSR1

Relay contact position shown in 'Power on' (Healthy) condition
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