User guide

CAUTION symbol refers to a potentially hazardous situation which, if not avoided, may
result in minor or moderate injury.
WARNING symbol refers to a potentially hazardous situation which, if not avoided, may
result in death or serious injury.
Instructions
PN 7635 / 7635B
Blue Sea Systems Inc. p 360.738.8230
425 Sequoia Drive f 360.734.4195
Bellingham, WA 98226 USA [e-mail]
www.bluesea.com
980016770 Rev.002
WARNING
CAUTION
Installation
GUARANTEE: Blue Sea Systems stands behind its products for as long
as you own them. Find detailed information at www.bluesea.com/about.
For customer service, call 800-222-7617.
Senses low battery voltage and automatically disconnects
devices to save power for starting or to preserve battery life
• Status light in both m-LVD and Remote Control Switch provides visual warning of low
voltage state prior to disconnect
• Alarm output available for audible warning of low voltage state
prior to disconnect (optional alarm required)
• Remote Control Switch Functions:
Disconnect Voltage Adjustment - Sets desired disconnect voltage
Override - Temporarily delays circuit disconnect for 10 minutes
OFF - Temporarily disconnects circuits until voltage rises
Override or OFF - Silences alarm (optional alarm required)
• Includes Remote Control Switch PN 7928
DC
AC
Before beginning electrical installation, disconnect all AC and DC power sources.
Do not service equipment that has been automatically disconnected by the m-LVD
 withoutrstpermanentlyremovingpowerfromtheequipmentbyameansother
than the m-LVD.
WARNING
CAUTION
If you are not knowledgeable about electrical systems, consult an electrical professional.
Mount the m-LVD. Three mounting options are illustrated below:
1.00 " (25.4mm)
SUGGESTED
MINIMUM SCREW
LENGTH
#10 SCREWS
WITH THREAD
APPROPRIATE
FOR MOUNTING
SURFACE
2-5/8" (66.7mm)
MOUNTING HOLE
DIAMETER
5/16" (7.9mm)
MAXIMUM PANEL
THICKNESS
2-5/16" (58.7mm)
MOUNTING HOLE
DIAMETER
1.00 " (25.4mm)
SUGGESTED SCREW
LENGTH FOR 1/8"
PANEL THICKNESS
#10 HEX NUTS
3/8" WIDTH
#10 MACHINE
SCREWS
2.25 (57.2mm)
SUGGESTED MINIMUM
SCREW LENGTH
#10 SCREWS
WITH THREAD
APPROPRIATE
FOR MOUNTING
SURFACE
Rear Panel Mount
Front Panel Mount
Surface Mount
Front Panel Mount (Rear View)
m -LVD
LOW VOLTAGE DISCONNECT
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1.45"
(36.83mm)
0.83"
(21.08mm)
Remote Control Switch
Mounting Hole Dimensions
Intermittent Rating: 5 min. 115A
Continuous Rating 65A
Nominal Voltage 12V DC
Cable Size (to meet current ratings) 6 AWG (16mm²)
Terminal Stud Size 1/4"-20 (M6)
Disconnect Voltage 11.3V–12.1V Adjustable
Factory Default Disconnect Voltage 12.1V
Alarm Time Before Disconnect 5 minutes
Reconnect Voltage 13V DC
Remote Control Switch Type: SPDT, Action: (ON)-OFF-(ON)
( ) = momentary
Maximum Alarm Current 250mA
Maximum External LED Current 14mA
Regulatory
ISO 8846, Meets SAE J1171 external ignition protection requirements
Specications
Installation (continued)
Remove rear insulating cover as illustrated.