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Carlo Gavazzi Three-Phase Monitoring Relays Protect Facilities and Machinery

Carlo Gavazzi has been making monitoring relays since 1956, and are a market leader with their voltage, current and frequency monitoring relays. Their three-phase monitoring relays for voltages up to 690VAC, protect against phase reversal, phase loss and/or under-voltage sags. Some offer adjustable time delays to avoid nuisance trips.

  • Monitoring Relays are typically used to protect pumps, motors, HVACR equipment, elevators/escalators, trams, food and beverage production and dispensing equipment.
  • Devices without an adjustable potentiometer will detect regenerated voltage up to 85% of the nominal voltage (phase-phase).
  • DPA Series: Basic Function Relays perform a single function, i.e. Phase Sequence or Loss, Phase Asymmetry, Under Voltage, etc.
  • DPB Series: Extended Function Relays, which in addition to offering the Basic Function shown above, also offer an adjustable time delay, hysteresis and/or latch function.
  • DPC Series: Full Function Relays, in addition to offering Basic/Extended Function shown above, they also offer two outputs and two adjustable set point, two adjustable time delay and two adjustable hysteresis level potentiometers/settings.
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20 Products

    DPA51CM44 Carlo Gavazzi
    Phase Monitoring Relay - Sequence Failure - DPA51 Series - SPDT - 5 A - DIN Rail - Screw - 250 VAC
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    In Stock: 25
    Can Ship immediately 

    1
    $86.87
    5
    $82.53
    10 +
    $78.40
    DPA53CM23 Carlo Gavazzi
    Phase Monitoring Relay - Sequence Failure - DPA53 Series - SPDT - 5 A - DIN Rail - Screw - 250 VAC
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    In Stock: 13
    Can Ship immediately 

    1
    $131.19
    3
    $124.63
    5 +
    $118.40
    DPC01DM49400HZ Carlo Gavazzi
    3-phase Multifunction Monitoring Relay
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    In Stock: 12
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    1
    $202.99
    3
    $192.84
    5 +
    $183.20
    DPA53CM48 Carlo Gavazzi
    Phase Monitoring Relay - Sequence Failure - DPA53 Series - SPDT - 5 A - DIN Rail - Screw - 250 VAC
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    In Stock: 9
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    1
    $136.51
    3
    $129.68
    5 +
    $123.20
    DPC71DM48 Carlo Gavazzi
    3-phase Multifunction Monitoring Relay
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    In Stock: 5
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    1
    $286.68
    3
    $265.26
    5
    $261.27
    10
    $253.83
    25 +
    $246.73
    DPA01CM44 Carlo Gavazzi
    Phase Monitoring Relay - Sequence Failure - DPA01 Series - SPDT - 8 A - DIN Rail - Screw - 250 VAC
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    In Stock: 4
    Can Ship immediately 
    On Order: 60
    can ship 11/18/24

    1
    $111.69
    3
    $106.11
    5 +
    $100.80
    DPC01DM23 Carlo Gavazzi
    240V 3PH VOLT MULTIFUNCT'N RLY
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    In Stock: 4
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    1
    $202.99
    3
    $192.84
    5 +
    $183.20
    DPA01DM48 Carlo Gavazzi
    Phase Monitoring Relay - Sequence - Failure - DPA01 Series - DPDT - 8 A - DIN Rail - Screw - 250 VAC
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    In Stock: 4
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    1
    $105.48
    3
    $100.21
    5 +
    $95.20
    DPA55CM44 Carlo Gavazzi
    3-PHASE MAINS QUALITY RELAY RE
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    In Stock: 3
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    1
    $157.68
    2
    $149.80
    3
    $142.31
    4 +
    $135.19
    DPC02DM49 Carlo Gavazzi
    3-phase Multifunction Monitoring Relay
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    In Stock: 2
    Can Ship immediately 

    1
    $557.04
    3
    $533.04
    6
    $525.05
    12 +
    $517.17