Blue Sea Systems m-LVD Low Voltage Disconnect User Manual

Installation and operation guide for the Blue Sea Systems m-LVD Low Voltage Disconnect, covering wiring, settings, and safety information.


Blue Sea Systems m-LVD Low Voltage Disconnect User Manual - cover page
Brand
Blue Sea Systems
Category
power system
Document type
User Manual
Language
English
Pages
2
File format
PDF
File size
1018 KB
Published
30 September, 2026
Updated
30 September, 2026
MD5 checksum
397148227CC65DC3F704823BD5C6AC1E

About this manual

This manual provides step‑by‑step instructions for installing the Blue Sea Systems m‑LVD Low Voltage Disconnect, including mounting options, wiring diagrams, and fuse selection. It also explains how to use the optional remote control switch and alarm output.

Operational details cover adjusting the disconnect voltage, interpreting LED status indicators, and using the override and off functions to temporarily delay or silence the disconnect. Safety cautions and regulatory compliance notes are included throughout.

What's inside

  • Installation
  • Mounting Options
  • Remote Control Switch
  • Specifications
  • Connection Table
  • LED Status Chart
  • Alarm Output
  • Wire Size and Fuse Rating

Specifications

Intermittent Rating5 min.
Continuous Rating65A
Nominal Voltage12V DC
Cable Size6 AWG (16mm²)
Disconnect Voltage Range11.3V – 12.1V (adjustable)
Time Delay to Alarm5 minutes
Reconnect Voltage13V DC
Maximum Alarm Current250 mA
Maximum External LED Current14 mA

Frequently asked questions

How do you adjust the disconnect voltage on the m‑LVD?

Press and hold the OVERRIDE position for 10 seconds to enter adjustment mode, then use the OFF button to decrease or the OVERRIDE button to increase the voltage in 0.2 V steps.

What is the alarm time before the m‑LVD disconnects?

The unit waits 5 minutes after the voltage falls below the set point before sounding the alarm, then an additional 5 minutes before disconnecting.

What wire size is required for a 65 A continuous load?

Use #6 AWG (16 mm²) wire for up to 65 A continuous current.

How long can you temporarily delay the disconnect using the remote switch?

Press OVERRIDE to delay circuit disconnect for 10 minutes.

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