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Specifications
Part number
SBI12
SBI12D
SBI24
SBI24D
SBI212
SBI212D
SBI224
SBI224D SBI12-BLD SBI12-LLD
Turn-on voltage 13.2V 26.4V 13.2V 26.4V 10.2V 11.0V
Turn-off voltage 12.7V 25.4V 12.7V 25.4V 10.0V 10.5V
Continuous load rating 100A 100A 200A 200A 100A 100A
Inrush load rating 400A 400A 600A 600A 400A 400A
Standby current <5mA <5mA <5mA <5mA <5mA <5mA
Dimensions 75x70
x80mm
75x 70
x80mm
90x 95
x100mm
90x95
x100mm
75x70
x80mm
75x70
x80mm
Weight 200g 200g 600g 600g 200g 200g
Smart Start
®
SBI Battery Isolators
Designed primarily for use in 4WD and commercial
vehicles with a dual battery setup, the Smart Start
®
SBI ensures that a low charge in the secondary
battery won’t drain the primary battery.
It is available in four models; 12 or 24 volt DC
incorporating 100 or 200 amp continuous ratings.
The 200 amp models are designed for extremely
heavy-duty operations, as found in industrial and
mining situations
The Smart Start
®
SBI monitors the start battery
and the charging system. When the start battery
reaches 13.2 volts on a 12 volt system (26.4 volts
on a 24 volt system) the solenoid will connect the
auxiliary battery to the charging system. Once
the engine has been turned off the Smart Start
®
SBI monitors the start battery voltage and, when
this drops below 12.7volts on a 12 volt system
(25.4volts on a 24volt system), the solenoid
will turn off, isolating the start battery from the
auxiliarybattery.
The Smart Start
®
SBI features sophisticated fault
detection and LED indication of operation to warn
the user of faults that include over-voltage, voltage
drop and excessive current draw conditions. It also
features power saving technology. This means the
unit will only draw approximately 120 milliamps
when on and generate less heat allowing it to
operate at a much cooler temperature.
The Smart Start
®
SBI is better than a diode battery
isolator due to the voltage drop associated with
diode type isolation.
The solenoid features silver contacts for longer life
and is suitable for marine applications.
The Smart Start
®
SBI incorporates electronic
components that will prevent the solenoid from
generating high voltage transients making it ideal
for use on modern vehicles fitted with computer
control systems.
Fuse size recommendations
Fuse recommended for pushbutton override Fuse recommended for no override
SBI12/SBI24 100 amps 60 amps
SBI212/SBI224 200 amps 120 amps
Dual sensing Smart Start
®
models
SBIXXD models isolate the start and auxiliary
batteries when the auxiliary battery may also
becharged by an external source, like solar.
They allow the start battery to be charged by the
external source once the auxiliary battery reaches
13.2 volts - useful to top up the start battery from
a solar charge source or an external AC battery
charger connected to the house or auxiliary
battery. They operate as standard
SBIs when the start battery terminal
of the SBI receives more than
13.2volts (12V system) or 26.4volts
(24V system).
Smart Start
®
dual battery isolator
and wiring kit
The Smart Start
®
Dual Battery Isolator
and Wiring Kit (part number SBI12KIT)
has everything needed to install a Smart
Start
®
Dual Battery Isolator including
the Smart Start
®
itself. It requires no
crimping or soldering, it’s just plug and
play. The SBI12KIT features high
quality MIDI 60 amp fuses
and MTA fuse holders with
the corresponding ring
terminals already attached
to the wires.
Want to know more?
Scan this QR code with
your smartphone to go to
the Redarc website
Load Disconnect Controllers
REDARC have two Load Disconnect Controllers
for use in LiFeP04 auxiliary battery installations:
• SBI12-BLD
for BMS load
disconnect
• SBI12-LLD
for lithium load
disconnect
Loads*Load
circuit breaker
* Circuit breaker and fuses not supplied
Auxiliary
battery
Start
battery
Start
battery
Override
wire
Fuse*
Fuse*
Auxiliary
battery
Winch
Fuse Fuse
Winch
switch
SBI with push button for start assist
Override
wire
5A
fuse
Momentary
pushbutton
Winch from both batteries
Standard SBI installation
Winch
solenoid
Australia
Phone [phone]
Fax [phone]
International
Phone [phone]
Fax [phone]
REDARC Electronics
ABN 77 136 785 092
23 Brodie Road (North)
Lonsdale, South Australia
Australia 5160
[e-mail]
www.redarc.com.au
Visit redarc.com.au for more information.
SBI Smart Battery Isolators are available
at your nearest auto electrician or
4WDspecialty store.
Details and specifications are subject to change without notice.
Copyright © 2019 REDARC Electronics Pty Ltd. All rights reserved.
6037-190325
SOLAR
READY
®
®