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    3 Phase Monitoring Relay, SPDT, Phase Failure/Undervoltage/Overvoltage

    $68.89
    Low price 3 phase monitoring relay with SPDT (1 C/O) contact, used for monitoring phase failure/loss, phase sequence, phase unbalance, overvoltage and undervoltage at the rated voltage of AC 220V, 380V, 440V, 460V, or 480V 50/60Hz, LED lights indicating working state, compact size and DIN rail mounting, provide a safe protection for electric motors, air compressors, pumps and other equipment or devices.
    SKU: ATO-MR-JVR
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    Free shipping
    Delivery date: 6-12 days

    Three phase monitoring relay with SPDT (1 C/O) contact, performs the monitoring functions including phase loss, phase sequence, phase unbalance, overvoltage and undervoltage in the 3 phase AC power system of 220V AC, 380V AC, 440V AC, 460V AC, or 480V AC 50/60Hz. The phase failure/voltage monitoring relay is widely applied in air compressors, electric motors, pumps, fans, air-conditioning system, blowers, lifts, elevators, cranes, refrigeration units, mining excavators and conveyors, etc.

    Features

    • Compact size in DIN rail mounting
    • Three-phase monitoring of phase sequence, phase loss (phase failure), phase unbalance, overvoltage and undervoltage
    • Powered by the measuring circuit
    • Monitoring relay with 1 C/O (SPDT) contacts
    • 5 LED lights for status indication

    Specification

    Model ATO-JVR
    Measuring Circuit 3-Phase AC: L1, L2, L3
    Monitoring Functions Phase Sequence (Reversal), Phase Loss (Failure), Phase Unbalance
    Overvolatege, Undervoltage
    Rated Voltage (line voltage) (Optional) 220V AC, 380V AC, 440V AC, 460V AC, 480V AC 50/60Hz
    Voltage Setting Range (Optional) Model Suffix Undervoltage Overvolatege
    Blank -15% +15%
    A -10% +10%
    B -10% +12.5%
    C -12.5% +15%
    Voltage Unbalance Threshold 15% fixed
    Delay Time for Undervoltage & Overvoltage 5-8s fixed
    Delay Time for Phase Loss, Phase Unbalance, Phase Sequence 1-2s fixed
    Reset Time 0.5s fixed
    Indicator LED indicating phase sequence, phase loss, overvolatege, undervoltage, and normal status
    Output Contacts 1 C/O (SPDT or 1 Form C)
    Contact Capacity 3A, 250V AC (resistive load)
    Degree of Protection IP 20
    Working Conditions Operating Temperature -25℃~65℃
    Humidity ≤85%RH, non-condensing
    Mechanical Durability 1,000,000 cycles
    Dielectric Strength >2kVAC 1min
    Mounting 35mm DIN rail
    Weight 110g
    Dimensions (H*W*D) 68*30*76mm

    Wiring Diagram 3-phase voltage phase monitoring relay spdt wiring diagram

    Monitoring relay contacts position shown in "Power-off" condition

    Dimensions (Unit: mm)

    3-phase voltage phase monitoring relay spdt dimension

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