SMART BATTERY ISOLATORS SERIES
9-12 V Battery Isolators
Specifications
Max Continuous Voltage:
9-12 V
Max Continuous Current Rating:
Current Rating Inrush:
Operating Temp Range:
Ingress Protection:
85-200 A
750 A
-40°C to +85°C
IP67 (Electronic Module)
IP66 ( Solenoid)
Housing:
Black Thermoplastic Base,
Plated Steel Housing
Output Terminals:
Input Terminals:
Copper Stud 5/16-24
WIRE 18 AWG
48525
48530
48525-BX
48530-BX
Applications
• Boats
• HeavyTrucks
• RVs/Campers
Description
Smart Battery Isolators are smaller, lighter, and more
flexible than traditional battery isolators, which makes
them efficient automotive battery management solutions.
They work with all alternator types and generate less heat.
In addition, there is no diode efficiency loss with Smart
Battery Isolators, and they offer reduced charging system
workload by not connecting the auxiliary battery until the
primary battery is charged to 13.2 V. The lower strain on
expensive charging components extends their useful life.
These Smart Battery Isolators also allow bi-directional
charging from an alternator or from a shore or campground
power charger/converter when available.
Features and Benefits
• Simple installation allows you to easily connect a starting
battery and auxiliary battery.
• Available with a continuous current rating of 85 A or 200 A
• LED status indicator shows you whether the solenoid relay
inside the Smart Battery Isolator is open or closed
• Optional Start Assist is activated by a momentary switch
that allows the auxiliary battery to assist the starting
battery
Web Resources
Download 2D print, installation guide and technical
resources at: littelfuse.com/SmartBatteryIsolators
Ordering Information
MOUNTING HOLE
DIMENSIONS IMPERIAL
INCHES (INCH)
MOUNTING HOLE
DIMENSIONS METRICAL
MM (MM)
PART
DESCRIPTION
NUMBER
48525
48525-BX
48530
9-12 V 85 A Smart Battery Isolator
9-12 V 85 A Smart Battery Isolator - Boxed
9-12 V 200 A Smart Battery Isolator
5/16" x 19/32" on 2 13/64"
5/16" x 19/32" on 2 13/64"
5/16" x 19/32" on 2 13/64"
5/16" x 19/32" on 2 13/64"
7.9 x 15.1 mm ON 56 mm
7.9 x 15.1 mm ON 56 mm
7.9 x 15.1 mm ON 56 mm
7.9 x 15.1 mm ON 56 mm
48530-BX
9-12 V 200 A Smart Battery Isolator - Boxed
Littelfuse.com
© 2023 Littelfuse, Inc.
110823-A
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