48525 & 48530 Smart Battery Isolator Installation Guide

48525 & 48530 Smart Battery Isolator Installation Guide
Smart Battery Isolator
48525 & 48530
Operation
1. The two batteries are electrically connected
together when either battery voltage is above 13.2V
for 2 minutes (e.g. during charging).
2. The two batteries are isolated when both battery
voltages are below 12.7V for 1 minute.
3. The BOOST function connects the two batteries
to provide more starting energy.
• To enable the BOOST function, connect the violet wire to 12V DC via a momentary switch or through the ignition switch.
4. The STATUS indicator and the on-board LED are
turned on when the two batteries are connected
together.
Connections
1. Disconnect the battery or switch it off with the
master disconnect switch before installation.
2. Connect the 48530/48525 MAIN BAT + stud to the
positive terminal of the main battery (also called
starting battery or chassis battery). Use appropriate
heavy gauge cable and proper fusing.
3. Connect the 48530/48525 AUXILIARY BAT+stud
to the positive terminal of the auxiliary battery (also
called the coach battery). Use appropriate heavy
gauge cable and proper fusing.
4. Connect black “Ground” wire to ground.
5. Optional circuit connections:
• Connect violet “Boost” wire to a normally open momentary switch. Connect the other side of the switch to +12V DC.
• Connect white “Status” wire to a 12V DC, 50mA max. audio/visual alarm. Connect the other side of the alarm +12V DC.
• Unused wires should be capped or otherwise insulated from active circuitry.
6. Reconnect the batteries.
General Specifications
Environmental: Electrical:
Accuracy:
Power Studs: Wire Connections:
Mounting:
Dimensions:
SAE J1455 and J1113
9-16V DC
200A/85A continuous
750A inrush
8mA quiescent current
+/- 100 mV
5/16” -24 copper studs
Active High, 250mA
a. violet-BOOST
b. black-GROUND
c. white-STATUS
5/16”x19/32” on 2 13/64” centers
(7.9 x 15.1 on 56 mm centers).
3.4” x 3.4” x 3.1”
Littelfuse Commercial Vehicle Products
www.colehersee.com
www.littelfuse.com
IF-161 Rev E
Cole Hersee Accessories for your Smart Battery Isolator
Littelfuse Commercial Vehicle Products
www.colehersee.com
www.littelfuse.com
IF-161 Rev E
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