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Protect Electrical DC Voltage Monitoring Relay , Dc Undervoltage Relay

Categories DC Voltage Monitoring Relay
Brand Name: GINRI
Model Number: DVRD
Certification: CE
Place of Origin: China
MOQ: 10Pcs
Payment Terms: L/C, T/T, Western Union,paypal
Supply Ability: 20000Pcs per month
Delivery Time: 5-8 working days
Packaging Details: 1 relay in individual box
Working conditions: -25-65℃
Mechanical D2 COurability: 1000000 cycles
voltage setting range: 30-51V
Under Voltage: 40-56V
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Protect Electrical DC Voltage Monitoring Relay , Dc Undervoltage Relay

GINRI Voltage Monitoring Relay DC Over/Under Voltage Relay DVRD


Features:

  • Compact modular size
  • DC circuit monitoring of over-and undervoltage
  • Adjustable over-and undervoltage threshold
  • Adjustable trip delay time
  • Powered by the measuring circuit
  • 2C/O contacts
  • 2 LEDs for status indication

Protective Functions

  • DC overvoltage
  • DC undervoltage

Applications

  • DC cabinet
  • Battery
  • Electric control system

ModelDVRD
Input circiut =measuring circuitDC supply
Rated voltageDC12V.DC24V.DC36V,DC48V
Monitoring functionsOvervoltage,undervoltage
Voltage setting range
Rated voltageundervoltageovervolatge
DC12V10-14V13-17V
DC24V20-28V26-34V
DC36V30-42V39-51V
DC48V40-56V52-68V

Tripping delay time0.1~15s adjustable
Voltage hysteresis3-5% fixed
Reset delay time100ms
indicatorsnormal,trip
Output contacts2C/O
Contact capacity6A,250VAC/30VDC(resistive load)
Degree of protectionIP20
Working conditions-25℃~65℃,≤85%RH,non-condensing

Mechanical

durability

1000000 cycles
Dielectric strength>2KVAC 1min
Weight130g
Dimension(HXWXD)79X23X79mm
MountingDin rail

Low voltage protection of the motor This protection is often used in the motor control loop of the more important equipment, and the power of such motors is generally larger than other motors on the bus. The principle is to connect a low voltage relay in parallel with the motor trip circuit. The normally closed contact, and the coil of the low voltage relay is connected in parallel between the two phases of the bus which provides three-phase power for the motor. During normal operation, the power bus voltage is normal, and the low voltage relay coil is in the return state. When the normally closed contact is disconnected, the trip circuit will not be turned on. When the bus is de-energized or a fault such as grounding occurs, the bus voltage is reduced to the low-voltage relay action value, the relay is activated, the normally closed contact is closed, and the trip is turned on. The circuit cuts the motor from the busbar.

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