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    DC Voltage Monitoring Relay, Under/Over Voltage, 12V/24V/48V DC

    5 out of 5 based on 1 reviews | Write a review
    DC voltage monitoring relay with 2 C/O contacts (2 Form C or DPDT) provide protection for the equipment from undervoltage and overvoltage in DC circuit 12V, 24V, 36V or 48V, adjustable trip delay time, LED indicator for working state, DIN rail mounting, compact design, good quality and low price.
    Free Shipping Worldwide
    Delivery date: 6-20 days

    This voltage monitoring relay is applied in the DC circuit for monitoring undervoltage and overvoltage of DC cabinet, battery, electric control system, etc.


    • Compact size in DIN rail mounting
    • DC circuit monitoring of overvoltage and undervoltage
    • Adjustable overvoltage and undervoltage threshold
    • Adjustable trip delay time
    • Powered by the measuring circuit
    • Monitoring relay with 2 C/O contacts (2 Form C or DPDT)
    • 2 LEDs for status indication


    Measuring Circuit DC circuit
    Monitoring Functions Overvoltage, Undervoltage
    Rated Voltage DC 12V DC 24V DC 36V DC 48V
    Voltage Setting Range Undervoltage 10-14V 20-28V 30-42V 40-56V
    Overvoltage 13-17V 26-34V 39-51V 52-68V
    Trip Delay Time 0.1-15s adjustable
    Voltage Hysteresis 3-5% fixed
    Indicators LED indicators for Normal, Trip
    Output Contacts 2 C/O
    Contact Capacity 6A, 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
    Power Consumption ≤2W
    Mounting 35mm DIN rail
    Weight 130g
    Dimensions (H*W*D) 79*23*79mm

    Wiring Diagram

    DC voltage monitor relay wiring diagramDimensions (Unit: mm)

    DC voltage monitor relay dimension

    Existing reviews of DC Voltage Monitoring Relay, Under/Over Voltage, 12V/24V/48V DC
    Looking for DC voltage monitoring relay
    What is the power consumption of this DC voltage monitoring relay during normal operation and when a under voltage occurrence is in?
    From: Carlos | Date: 27/11/2019
    Was this review helpful? Yes No (0/0)
    ATO Responded
    The power consumption of this relay is ≤2W during normal operation, and when the under-voltage occurs, the power consumption will be smaller than this. And you can adjust the over-voltage and under-voltage threshold in the voltage setting range as you like.
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