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Features
  • Protects Against:  Phase Loss, Phase Reversal, Phase Unbalance, Undervoltage
  • User-Selectable Phase Unbalance and Undervoltage Settings
  • User-Adjustable Time Delay Drop-Out on Undervoltage
  • LED Indicates both Normal and Fault Conditions
  • Compatible with most Wye or Delta Systems
  • Compact 8-Pin Octal Plug-In Case
  • R68 SeriesUL CSA logo

    Phase Monitoring, 10 Amp, SPDT,
    AC Relays
    Photo of R68 Series Relay

    Operation
    Phase Monitoring Relays will protect against premature equipment failure caused by voltage faults on three-phase systems. These devices protect against unbalanced voltages or single phasing regardless of any regenerative voltages. The relay is energized when the phase sequence and all voltages are correct. Any one of four fault conditions will de-energize the relay. Re-energization is automatic upon correction of the fault. An LED indicates normal and tripped conditions.

    AC OPERATED
    NTE Type No.Nom.
    Volt.
    Contact
    Arr.
    Adjustable
    Under
    Voltage
    Drop-Out
    Input
    Current
    Nom.
    Max.
    Contact
    Cur, @
    30VDC
    or
    240VAC
    R68-5A10-240208/240VACSPDT180-230V14/12mA10A
    R68-5A10-480480VACSPDT360-460V6mA10A

    ACCESSORIES
    Mounting StylesDescriptionNTE Type No.
    Surface Mount8-Pin OctalR95-101
    Panel Mount8-Pin OctalR95-118
    DIN Rail Mount8-Pin OctalR95-113

      
    Dimensional Drawing

    SPDT, 1 Form "C"

    Electrical Specifications

    Contact
    Rating: 10 Amps resistive at 240VAC, 1/2 HP at 240VAC,
    10 Amps resistive at 30VDC
    Life: 500,000 operations at full load
    Mechanical Life: 7,000,000 operations at no load

    Input
    Nominal Input Voltage: See Chart
    Steady State Input Current: See Chart

    Operational Characteristics
    Timing Values:
                Operate Time: 50mS
                Release Time: 50mS fixed on phase loss, phase unbalance, and phase reversal;  0.1-20sec adjustable on undervoltage only
    Hysteresis: 2-3%

    Protection
    Transient: 10,000V for 20µs
    Indicator LED: Red LED steady when all conditions are normal, and flashing when a fault condition has occurred
    Reset: Automatic upon correction of fault

    Environmental Characteristics
    Operating: -28°C to +65°C

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