CIRCUIT BREAKERS
1 7
Universal Circuit Breakers
UCB
Universal Circuit Breakers function identically and have same internal components as
OEM breakers but offer the versatility of snap off terminals for greater flexibility. SAE
Type II modified reset used primarily as a wiring harness protector in 12 volt DC auto-
motive systems. Meets OEM requirements. Conforms to SAE J553C standard.
Designed to mount in ATO style fuse blocks and panels.
Bulk
US
Canadian
Amp
Bulk
US
Canadian
Amp
Part No.
Carded No.
Carded No.
Rating
Part No.
Carded No.
Carded No.
Rating
UCB
UCB 10
UCB 15
5
UCB 5 BP
UCB 10 BP
UCB 15 BP
UCB 5 CABP
UCB 10 CABP
UCB 15 CABP
5
10
15
UCB 20
UCB 25
UCB 30
UCB 20 BP
UCB 25 BP
UCB 30 BP
UCB 20 CABP
UCB 25 CABP
UCB 30 CABP
20
25
30
MRB
Manually Resettable Circuit Breakers
Manually Resettable Circuit Breakers feature an external button to allow resetting of the
device in a safe, convenient manner. SAE Type III manual reset used primarily as a
wiring harness protector in heavy duty 12 volt DC truck systems. Meets OEM require-
ments. Designed to mount in ATO style fuse blocks and panels.
Bulk
Amp
CIRCUIT
Part No.
Rating
Color
OEM #
BREAKERS
MRB 10
MRB 15
MRB 20
MRB 25
MRB 30
10
15
20
25
30
Red
Blue
Gold
Silver
Green
Navistar 2011944C1
Navistar 2011945C1
Navistar 2011946C1
Navistar 2011947C1
Navistar 2011948C1
MCB
MAXI™ Circuit Breakers
Direct factory replacement for many domestic OEM applications. Designed to fit a
MAXI™ Blade fuse block or panel. Available in either SAE Type I cycling or SAE Type II
non-cycling used primarily as a wiring harness protector in 12 volt DC automotive
systems. Meets OEM requirements. Conforms to SAE J553C standard.
MXB
Bulk
US
Canadian
Amp
Part No.
Carded No.
Carded No.
Rating
Typical Application
OEM No.
Cycling Design – Type I
MCB 20
MCB 20 BP
MCB 20 CABP
MCB 30 CABP
20
30
Automotive Headlamp
Automotive Headlamp,
Seats & Wipers
GM# 12065132
GM# 12088553
MCB 30
MCB 30 BP
Non-Cycling Design – Type II
MXB 20
MXB 30
MXB 40
MXB 20 BP
MXB 30 BP
MXB 40 BP
MXB 20 CABP
MXB 30 CABP
MXB 40 CABP
20
30
40
Automotive Power Devices
Heavy Truck & Auto
Cooling Fan
Automotive Power Window
Heavy Truck & Auto Cooling Ford# F6HT-14526-LA
Fan & Power Window
GM# 12077842
Ford# F6HT-14526-KA
GM# 12077843
CBF
Heavy Truck
Ford# F6HT-14526-JA
Fuse Clip Circuit Breakers
Direct replacement for many OEM applications. Designed for glass fuses without
1
4
physical alteration in the system. Fits 1 / " fuse clips. SAE Type II non-cycling used
primarily as a wiring harness protector in 12 volt DC automotive systems. Conforms to
SAE J553C standard.
Bulk
US
Canadian
Amp
Bulk
US
Canadian
Amp
Part No.
Carded No.
Carded No.
Rating
Part No.
Carded No.
Carded No.
Rating
CBF 10
CBF 15
CBF 20
CBF 25
CBF 10 BP
CBF 15 BP
CBF 20 BP
CBF 25 BP
CBF 10 CABP
CBF 15 CABP
CBF 20 CABP
CBF 25 CABP
10
15
20
25
CBF 30
CBF 35
CBF 40
CBF 30 BP
CBF 35 BP
CBF 40 BP
CBF 30 CABP
CBF 35 CABP
CBF 40 CABP
30
35
40
813
812
Stud Type Low Voltage (6–12 Volts) Circuit Breakers
SAE Type I automatic reset provides protection in installations where it is not possible to
manually reset a breaker because of location or safety requirements. Used primarily as
a wiring harness protector in 12 volt DC automotive systems. Conforms to SAE J553C
standard. Available with mounting bracket-change part number from 812 to 813, e.g.
813005 ST.
Amp
Rating
Bulk
Part No.
US
Carded No.
Canadian
Carded No.
Amp
Rating
Bulk
Part No.
US
Carded No.
Canadian
Carded No.
5
6
8
10
15
20
812025 ST
812030 ST
812035 ST
812040 ST
812050 ST
N/A
812030 BP
N/A
812040 BP
812050 BP
N/A
812030 CABP
N/A
812040 CABP
812050 CABP
25
30
35
40
50
812005 ST
812006 ST
812008 ST
812010 ST
812015 ST
812020 ST
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
812020 BP
812020 CABP
E
OEM
P
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