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MajorPower.Com: The LVR Series Rackmount Low Voltage Load Disconnect protects telecom equipment and battery strings from damaging low voltage due to excessive battery charge
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MajorPower.Com: The LVR Series Rackmount Low Voltage Load Disconnect protects telecom equipment and battery strings from damaging low voltage due to excessive battery charge MajorPower.Com: The LVR Series Rackmount Low Voltage Load Disconnect protects telecom equipment and battery strings from damaging low voltage due to excessive battery charge MajorPower.Com: The LVR Series Rackmount Low Voltage Load Disconnect protects telecom equipment and battery strings from damaging low voltage due to excessive battery charge Tel: 514.369.4919 Fax: 514.369.4817

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 Email this page MajorPower.Com: The LVR Series Rackmount Low Voltage Load Disconnect protects telecom equipment and battery strings from damaging low voltage due to excessive battery charge
LVR / LVD Low Voltage Disconnects

The LVR Series (Rackmount) and LVD Series (Wall-Mount) Low Voltage Disconnect protect telecom equipment and battery strings from damage due to excessive battery discharge, typically encountered during extended AC power black-outs. The LVR/LVD Series automatically disconnect the load at a preset low voltage cut-off point, then reconnect the load when the battery string is recharged and reaches the preset connect voltage. The connect and disconnect voltages are user-adjustable (see specifications below).

LVR / LVD Low Voltage Disconnects
LVR / LVD Features  
  • Front Panel
    • Contactor “Open” and “Closed” indicator lights, voltage test and injection points, connect and disconnect potentiometers, and manual override
  • 48/24/12 VDC Models
    • Available in ratings of 200-800 Amps. May be used with positive or negative ground battery strings
  • Mounting Brackets
    • Provided for 19" or 23" racks and the panel occupies 3 RU of rack space
LVR / LVD Features
  LVR/LVD Specs
LVR / LVD Features
  LVR-48-800
LVR-48-200
LVR-24-800
LVR-24-200
LVR-12-400
LVD-48-30
LVD-24-50
LVD-24-20
LVD-12-75
LVD-12-30
LVR / LVD Specifications
Current Draw
Disconnect Mode 50 mA Max
Contact Activation 0.67-1.91 Amps
Contact Closure Maintenance 0.28-0.92 Amps
Factory Set Actuation Voltages
  • (48V) 42.0 VDC disconnect; 49.0 VDC connect
  • (24V) 21.0 VDC
    • disconnect; 24.5 VDC connect
  • (12V) 10.4 VDC
    • disconnect; 12.2 VDC connect
Maximum Connect / Disconnect Voltages
  • (48V) 60 VDC/38 VDC
  • (24V) 30 VDC/18 VDC
  • (12V) 15 VDC/9 VDC
    •
LVR / LVD Model Selection Guide
Models Voltage Maximum Amps Weight Dimensions
(H x W x D)
LVR-48-800 48 VDC 800 16 lbs 5.25 x 19/23 x 7" (3RU)
LVR-48-200 48 VDC 200 10 lbs 5.25 x 19/23 x 7" (3RU)
LVR-24-800 24 VDC 800 16 lbs 5.25 x 19/23 x 7" (3RU)
LVR-24-200 24 VDC 200 10 lbs 5.25 x 19/23 x 7" (3RU)
LVR-12-400 12 VDC 400 12 lbs 5.25 x 19/23 x 7" (3RU)
LVD-48-30 48 VDC 30 Wall-mount configurations only
Contact Majorpower.Com for specifications
LVD-24-50 24 VDC 50
LVD-24-20 24 VDC 20
LVD-12-75 12 VDC 75
LVD-12-30 12 VDC 30
Custom Applications - Contact MajorPower.Com
 
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low voltage disconnects, 48, 24, 12, vdc, lvd, lvld, lvbd, telecom battery strings, telecom batteries, AC black-out, rackmount low voltage disconnects, prevent battery discharge, connect voltage, disconnect voltage, 200, 400, 800 amps sales@majorpower.com
copyright 2002 low voltage disconnects, 48, 24, 12, vdc, lvd, lvld, lvbd, telecom battery strings, telecom batteries, AC black-out, rackmount low voltage disconnects, prevent battery discharge, connect voltage, disconnect voltage, 200, 400, 800 amps