ATO-JVR SPDT DIN Rail Mount Phase Failure Relay

ATO DIN rail mount phase failure 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 3 phase voltage monitoring relay provides a safe protection for air compressors, electric motors, pumps, fans, air-conditioning system, blowers, lifts, elevators, cranes, refrigeration units, mining excavators and conveyors.

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Features:

  1. Compact size in DIN rail mounting.
  2. Three-phase monitoring of phase sequence, phase loss (phase failure), phase unbalance, overvoltage and undervoltage.
  3. Powered by the measuring circuit. Monitoring relays are able to do this.
  4. Monitoring relay with 1 C/O (SPDT) contacts.
  5. 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% 12.50%
C -12.50% 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
Certification CE

Wiring Diagram:

SPDT DIN rail mount phase failure relay wiring diagram

Dimension: (Unit: mm)

SPDT DIN rail mount phase failure relay dimension

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