VMP Series Over/Undervoltage

VMP024D

Lead Time: 10 Days

$128.67 (USD) / EACH

Description Of Function

The relay energizes (and the LED is Red) when the monitored voltage is above the pick-up setting for a period longer than the fixed pick-up time delay of 0.5 seconds. The relay de-energizes (and the LED is Green) when the monitored voltage is below the drop-out setting for a period longer than the fixed drop-out time delay (t) of 0.5 seconds.

Function Chart

function chart

Product Overview

Features
  • Monitors AC single phase and DC voltages
  • True RMS Sensing ensures more accurate sensing
  • Wide range of user-adjustable voltage pick-up and drop-out settings
  • Fixed time delay on drop-out of 0.5 Seconds
  • Pilot Duty Rating
  • LED indicates output relay status
Enclosure Style

Plug-in case utilizing industry-standard 8 pin octal sockets

Configuration / Contact Rating
  • DPDT (12-240V relays) and SPDT (240-480V relays)
  • (All but VMP240AX) 10A @ 240V AC, 7A @ 30V DC, 1/4HP @ 120/240V AC, C300
  • (VMP240AX) 5A @ 277V AC/30V DC, 1/3 HP @ 120/240V AC, B300
Application Information
  • Voltage Tolerance: +50%/-50% of nominal AC voltage (50-60Hz, +5%); No separate input voltage is required since unit is powered by monitored voltage.
  • Load (Burden): Less than 2 VA (12-120V); 30VA (240V & 480V)
  • Voltage Settings:
    Pick-up (Umax): Adjustable across full range as shown on the product nameplate
    Drop-out (Umin): Fixed at 95% of the Pick-up setting
  • Response Times: Pick-up: 500 ms; Drop-out (t): Fixed 0.5 Seconds
  • Indicator LED: Red when Relay is energized; Green when Relay is Off
  • Output Contacts: 10A @ 240V AC, 7A @ 30V DC, 1/4HP @ 120/240V AC, C300
  • Life: Mechanical: 10,000,000 operations; Full Load: 100,000 operations
  • Temperature: -28° to 65° C (-18° to 149° F)

Operation

Over/Under Voltage Relays provide protection to equipment where either an over or under voltage condition is potentially damaging. They are designed to operate when the operating voltage reaches a preset value and drop-out when the operating voltage drops to a level below the preset value.

Adjust the pick-up voltage setting (Umax) between the full range as shown on the product nameplate. The drop-out voltage setting (Umin) is fixed at 95% of the pick-up setting. The relay energizes (and the LED is Red) when the monitored voltage is above the pick-up setting for a period longer than the fixed pick-up time delay of 0.5 seconds. The relay de-energizes (and the LED is Green) when the monitored voltage is below the drop-out setting for a period longer than the drop-out time delay (t) of 0.5 seconds.

voltage monitor
Watch the Voltage Monitor Relay Video

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