Owners manual
DIMENSIONS:
Motorised Battery Switch 
Model: 720-MDVSO 12/24V Voltage Sensitive Switch
OPERATION AND INSTALLATION INSTRUCTIONS
Feature or Specication New 720-MDVSO 720-MDVS,  
720-MDVS-24V
New MDVSO Comment
Automatic Dual Voltage 12/24 Volt
a
No Handles either 12 or 24 volt, with no setup 
required
Dual Sensing Both Battery Banks
a a
Parallels battery banks if either bank is  
sufciently charged 
Digital Circuitry, Optical Position Sense
a
No Improved accuracy and efciency 
Standby Power Consumption (VSS 
"Off")
<5 mA (<5.5mA) 15 mA Approximately 70% reduction in power  
consumption @12V
Continuous Power Rating 500A 500A
Intermittent Rating  700A 700A
Cranking Rating  2500A 2500A
LED Status Light On Unit
a a
Optional Remote LED Status Light
a a
Cut-In voltage (batteries are paralleled) 13.3 V (26.6 V) 13.7V (27.4V) 720-MDVSO cuts in after ~5 seconds
Cut-Out voltage (batteries are isolated) 12.7 V (25.4 V) 12.2-12.8 V
(24.4-25.6V)
720-MDVSO cuts out after ~20 second 
delay
Same 3 Wire + 2 Stud Connections
a a
Ground, remote parallel switch, remote 
status LED
10 Minute Remote Emergency Parallel
a a
(If remote parallel switch is tted)
Ignition Protected
a a
Full Manual Over-Ride (On & Off)
a a








