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Battery Disconnect Switches, Fuses and Battery Separators
B
attery disconnect switches
BP/BMS-1
Top post anti-theft battery switch. Complete with HHM
fuse holder, ATM-20 fuse, ring terminals and stainless
steel bolt and wing nut.
Part no. Description
BP/BMS-1
Top post anti-theft master switch with HHM fuse holder,
ATM-20 fuse and ring terminals
BP/BMS-2
Side post anti-theft master switch with HHM fuse holder,
ATM-20 fuse and ring terminals
15968-1 Heavy-duty disconnect; 50Vac/dc, 400A maximum
Amps Part no.
30 CBBF-30
40 CBBF-40
50 CBBF-50
60 CBBF-60
70 CBBF-75
80 CBBF-80
90 CBBF-90
100 CBBF-100
125 CBBF-125
150 CBBF-150
175 CBBF-175
200 CBBF-200
250 CBBF-250
300 CBBF-300
CBBF battery fuses
These fuses are suitable for main and auxiliary
circuit protection (alternator outputs, starter motor
inputs and accessories) in demanding environments or
tight space constraints. Marine-rated under SAE J1117
for ignition protection. Use with CBBF-MBC mounting
bar.
* Non-stock part.
B
attery separators manage batteries for reliable starts
• For vehicles and boats with main and auxiliary battery systems and alternator
outputs up to 100 amps — or on systems incompatible with battery isolators.
• Battery separators from Sure Power actively manage multi-battery electrical
systems to ensure greater reliability for main battery engine starting.
• Battery separators provide a solenoid priority system for multi-battery systems.
• When main battery is low, the separator will utilize auxiliary battery power to assist
in vehicle starting.
• Separators disconnect main and auxiliary batteries from one another to protect them
from excessive drain.
• Time-delay function prevents battery separator from reacting to temporary
voltage fluctuations.
Multi-battery systems
Many vehicles and boats have accessories and other electrical loads, such as lights,
entertainment systems and communications equipment that draw power when the
engine is off. When applied to a single battery electrical system, main batteries can
become drained and present an engine “no-start” condition. Adding an auxiliary
battery to operate these additional loads helps avoid this, but it needs more than
simply being wired into the electrical system — the auxiliary battery needs to be
separated.
Priority charging
The battery separator waits until the main battery’s active charging source reaches
approximately 13.2 volts before it begins charging the auxiliary battery. The
uni-directional battery separator RB-BS-1314 will only charge the auxiliary battery
when the main battery reaches 13.2 volts. The bi-directional battery separator
RB-BS-1315 will engage both main and auxiliary batteries and disconnect at
approximately 12.8 volts.
Charging system protection
Once the engine starts, the battery separator monitors the main battery and charging
system voltage. When the charging system reaches 13.2 volts, the battery separator will
engage, signaling a charged main battery. The auxiliary battery is then connected to the
vehicle charging system. When the charging system reaches 12.8 volts, the battery
separator will disconnect the auxiliary battery to protect the vehicle’s charging system.
This process of managing the battery charging is repeated until the engine is turned off.
Simple installation
The battery separators work with any 12 volt DC, negative ground charging system up
to 100 amps. They easily connect to the main battery, auxiliary battery and ground.
No system modifications are necessary.
Optional engine start assist
When the engine starter is engaged, the battery separator will compare the voltage in
both main and auxiliary batteries. If the main battery is lower than the auxiliary
battery, the battery separator will engage the auxiliary battery to aid in engine start.
The start signal must reach 3 volts in order for the auxiliary to mail battery connection
procedure to begin.
Catalog no. Description
RB-BS-1314 Uni-directional 100A battery separator — model no. 1314A*
RB-BS-1315 Bi-directional 100A battery separator — model no. 1315A*
CBBF-MBC
Mounting bar with
1
⁄4-20 stud,
nut and cover for the CBBF
battery fuse.
Order part number CBBF-MBC.
Attractive retail packaging easily mounts
on peg boards or stacks on shelves.
BP/BMS-2
Side post anti-theft battery switch for GM vehicles.
Complete with HHM fuse holder, ATM-20 fuse and
ring terminals.
15968-1
Heavy-duty switch is designed to open the circuit
between the battery and load of a battery powered
system - typically in large truck applications. Rated at
50Vac/dc maximum, 400A continuous, it can
withstand cranking or surge currents up to 2000A for
5 seconds maximum.
*
Use the catalog numbers to order these products.
