Stud Mount
ATC Blade
Maxi Blade
PAGES 136-137
PAGE 138
PAGES 138-139
Mini Blade
Push Button
Hi Amp
circuit breakers
Circuit Breakers
TEMPERATURE DERATING CURVES
135
PAGE 139
USI Electrical
PAGE 140
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PAGES 141-143
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Circuit Breakers - Stud Mount Type 1 - 12V DC Automatic Reset
72101
This series of circuit protectors is comprised of single pole thermal type breakers. Used in many diverse applications including multiple power outlet strips, trucks, buses, portable generators, welding equipment and trolling motors. Operating temperature from -40°F to 185°F (-40°C to 85°F). Storage temperature -40°F to 260°F (-40°C to 125°C). All Type 1, 2 and 3 circuit breakers are engineered for dependability. Breakers include nuts and washers, and all meet SAE J553 specifications.
Stud Terminals: Two 10/32 stud; .66 (AUX) .50 (BATT) Mounting Hole: .196 diameter holes
72302
plastic with horizontal mounting bracket (splash/dust proof)
metal with horizontal mounting bracket
71106
circuit breakers
part no. 72101 72102 72105 72115 72125
amp 5 6 10 15 20
part no. 72075 72135 72145 72165 72175
amp 25 30 35 40 50
metal without mounting bracket 72215
part no. 72302 72305 72315 72325
amp 6 10 15 20
part no. 72365 72335 72345 72385
amp 25 30 40 50
metal with parallel mounting bracket 71122
136
part no. 71100 71106 71108 71110 71112
amp 5 10 15 20 25
part no. 71114 71116 71118 71120
amp 30 35 40 50
USI Electrical
amp 10 20
part no. 72245 72255 72275
amp 25 30 40
plastic with parallel mounting bracket (splash/dust proof) part no. 71122 71124 71126
amp 10 15 20
part no. 71128 71130 71132
amp 25 30 40
TYPE 1 - Automatic Reset Will recycle continuously during an overcurrent condition. The composite alloy material will deflect and separate the contacts when an over-current situation occurs and return to the run mode as it cools. The process will continue until the source of the overcurrent is removed or corrected.
TYPE 2 - Modified Reset Circuit breaker will remain tripped (in the OFF position) as long as there is power to the circuit. Contains internal resistor. Reset circuit breaker by turning off the circuit or by turning off the ignition switch.
metal with horizontal mounting bracket part no. 72002 72006
amp 10 15 20
FUNCTIONCODE
Type 1 - 24V DC Automatic Reset
72002
part no. 72215 72225 72235
part no. 72010 72114
Ph: 763-746-5150
amp 30 40
TYPE 3 - Manual Reset Circuit breaker will remain tripped (in the off position) until indicator button or lever is manually reset to activate circuit. Type 3 available in plastic only.
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Circuit Breakers - Stud Mount cont. Type 2 - 12V DC Modified Reset Ideal for the recreational vehicle industry. Meets RVIA and SAE J553 specifications. Temperature range: operating -23°C to 65°C (-10°F to 150°F); storage -29°C to 93°C (-20°F to 200°F). Breakers include nuts and washers. 72715
metal with parallel mounting bracket
metal with horizontal mounting bracket part no. 72705 72715 72725
amp 10 15 20
part no. 72735 72745 72755
amp 30 40 50
part no. 71134 71136 71138
amp 10 15 20
part no. 71140 71142 71144
amp 30 40 50
72805
metal without mounting bracket
71138
72815 72825
amp 10 15 20
part no. 72835
amp 30
72845 72855
40 50
Type 3 - 12-24V DC Manual Reset Ideal for marine and recreational vehicle applications. Meets RVIA and SAE J553 specifications. Temperature range: operating -23°C to 65°C (-10°F to 150°F); storage -29°C to 93°C (-20°F to 200°F). Breakers include nuts and washers.
plastic with parallel mounting bracket
plastic with horizontal mounting bracket
75105
part no. 75105 75115 75125 71146
amp 10 15 20
part no. 75135 75145 75155
amp 30 40 50
part no. 71146 71148 71150
amp 10 15 20
part no. 71152 71154 71156
amp 30 40 50
plastic without mounting bracket part no. 75205 75215 75225
amp 10 15 20
part no. 75235 75245 75255
amp 30 40 50
75205
Mounting Brackets for Stud Mount Circuit Breakers Circuit breakers snap into this mounting bracket with no tools needed. It accommodates metal SAE Type 1 and Type 2 breakers without mounting brackets. The bracket is manufactured with heavy gauge steel, and holds breakers securely. 72045
part no. 72025 72045 72065 72066 72067
USI Electrical
gang 2 4 6 8 10
dimensions 35⁄8” x 15⁄16” 65⁄8” x 15⁄16” 87⁄16” x 15⁄16” 101⁄4” x 15⁄16” 121⁄16” x 15⁄16”
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circuit breakers
part no. 72805
137
Circuit Breakers - Blade Type 1, Type 2 and Type 3 - ATC® Type These are single pole thermal-type breakers, 14V DC (Type 3 - 24V DC). They feature a grey plastic housing with standard gold cover (Type 1) or silver cover (Type 2 & 3). Markings include amp/volt ratings. Meets SAE J553 specifications. Temperature range: operating -40°C to 85°C (-40°F to 185°F). Compatible with 280 Type or ATC® fuse blocks.
71178
type 2
type 1 part no. 71174 71176 71178
71188
amp 10 15 20
part no. 71180 71182
amp 25 30
type 3 part no. 72505 72515
72515
circuit breakers 138
amp 10 15
part no. 72525 72535
amp 20 30
part no. 71184 71186 71188
amp 10 15 20
part no. 71190 71192
amp 25 30
Blade Terminal: .206” Q-C .51” long (Straight Auto) / Bushing: 7116-28 x .500 Molded
Type 3 - Low Profile ATC®/ATO® Type These are single pole thermal-type breakers. The low profile allows for installation where space is a concern. Each is color-coded to amp rating. Markings include both volt and amperage ratings. Breakers meet SAE J553 specifications and are compatible with Del City ATC®/ATO® fuse panels. Temperature range: operating -40°C to 85°C (-40°F to 185°F). Rated up to 28V DC.
type 3 75910
part no. 75910 75915 75920
amp 10 15 20
part no. 75925 75930
amp 25 30
TYPE 1 - Automatic Reset Will recycle continuously during an overcurrent condition. The composite alloy material will deflect and separate the contacts when an over-current situation occurs and return to the run mode as it cools. The process will continue until the source of the overcurrent is removed or corrected.
Type 1 & 2 - ATC®/ATO® Maxi™ Blade Type Single pole thermal-type breakers with ATC®/ATO® blade configuration. Gray 94VO thermoplastic housing. Temperature range: -29°C to 65°C (-20°F to 150°F). 12V DC. Meets SAE J553.
type 1 & 2 part no. 72605 72615 72625 72635 72935
USI Electrical
amp 10 15 20 30 30
type auto reset auto reset auto reset auto reset modified reset
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FUNCTIONCODE
TYPE 2 - Modified Reset Circuit breaker will remain tripped (in the OFF position) as long as there is power to the circuit. Contains internal resistor. Reset circuit breaker by turning off the circuit or by turning off the ignition switch. Silver in color.
TYPE 3 - Manual Reset Circuit breaker will remain tripped (in the off position) until indicator button or lever is manually reset to activate circuit.
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Circuit Breakers - Blade cont.
FUNCTIONCODE
Type 1 - Maxi™ Auto Reset Temperature range: -29°C to 65°C (-20°F to 150°F). Interchangeable with Maxi™ blade fuse. 12V DC. Meets SAE J553. part no. 71310 71315 71320
amp 10 15 20
part no. 71330 71340 71350
amp 30 40 50
TYPE 1 - Automatic Reset Will recycle continuously during an overcurrent condition. The composite alloy material will deflect and separate the contacts when an over-current situation occurs and return to the run mode as it cools. The process will continue until the source of the overcurrent is removed or corrected.
TYPE 2 - Modified Reset Circuit breaker will remain tripped (in the OFF position) as long as there is power to the circuit. Contains internal resistor. Reset circuit breaker by turning off the circuit or by turning off the ignition switch.
Circuit Breakers - Miscellaneous
71162
Single pole thermal-type breakers, 14V DC. Housing is grey plastic with standard gold cover (Type 1) or silver cover (Type 2). Markings include amp/volt ratings. Meets SAE J553 specifications for Type 1 and Type 2 circuit breakers. Temperature range: operating -40°C to 85°C (-40°F to 185°F). The 110” blade is compatible with 280 fuse blocks.
71170
type 2
type 1 part no. 71158 71160
amp 10 15
part no. 71162 71164
amp 20 25
part no. 71166 71168
amp 10 15
part no. 71170 71172
amp 20 25
circuit breakers
Type 1 - Mini® Blade Type
Type 2 - Universal Circuit Breaker Connectors 71196
71198
“Snap-off” design of blades allows installer to size the blades for the application. Colorcoded markings to match the color coding for ATC®/ATO® fuses (UCB-10-Red, UCB-15Blue, UCB-20-Gold and UCB-30-Green). Fits standard ATC®/ATO® fuse panels. part no. 71194 71196
color red blue
amp 10 15
part no. 71198 71200
color gold green
amp 20 30
Snap-in Circuit Breakers/AGC® Type Remote reset circuit breaker replaces round glass-style fuses in existing fuse blocks. It opens automatically on overload, and remains open for protection until the trouble is corrected. Snap-in mounting in standard fuse clips, 1⁄4” diameter x 11⁄4” long. 12V DC. part no. 72415 72425
USI Electrical
amp 10 15
part no. 72435 72465
Ph: 763-746-5150
amp 20 30
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139
⁄4” Quick Connect - Push Button
1
Single pole thermal type. Operating temperature: 23°C to 65°C (-10°F to 150°F). Meets UL standard 1077 and CSA C22.2 No. 5.1-M91a. Rated to 32V DC, 250V AC. part no. 70505 70515
amp 10 15
part no. 70525 70535
amp 20 30
Mid-Range Circuit Breakers A sleek rounded design houses this new class of thermal circuit breakers. They are manufactured for medium-duty chassis and marine applications, and meet the ignition protection standards per SAE J1171. Breakers are compliant with SAE J553 and carry a 2.5kA circuit interrupt protection rating per ABYC E-11. Body is made of UL-rated 94V-0 thermoset plastic and cover is made from 94V-0 thermoplastic with an elastomer over mold and gasket to provide it with a weatherproof IP66 rating. Mounting holes are .198” clearance and power studs are #10-32 threaded studs (nuts included). Breakers are designed to operate in temperatures between -40°F to 185°F.
Type 1 - Automatic Reset
circuit breakers
These breakers will continuously cycle during a thermal over current condition. Each breaker is rated up to 32V DC.
76730
part no. 76730 76740
140
amp 30 40
part no. 76750
amp 50
Type 3 - Manual Reset (Switchable) These breakers will trip (lever extends to the open position) under a thermal over current condition and will remain tripped until the lever is manually reset, closing the circuit. This series also offers the unique feature of a pushto-trip button to allow you to manually disconnect the circuit. Each breaker is rated up to 32V DC. 76940
part no. 76930 76940
USI Electrical
amp 30 40
part no. 76950
Ph: 763-746-5150
amp 50
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Hi-Amp Circuit Breakers This series of circuit breakers are typically used in auxiliary and accessory circuits within trucks, buses, recreational vehicles and marine applications. Breakers are compliant with SAE J1625 and carry a circuit interrupt protection rating of 3,000A at 30V DC per ABYC E-11. Body is made of UL-rated 94V-0 thermoset plastic and cover is made from 94V-0 thermoplastic with an elastomer over mold and gasket to provide it with a weatherproof IP66 rating. Mounting holes are .260” clearance and power studs are ¼”-28 threaded studs (nuts included). Breakers are designed to operate in temperatures between -40°F to 185°F.
Panel Mount
These breakers will continuously cycle during a thermal over current condition. Each breaker is rated up to 30V DC. part no. 76365
amp 60
part no. 76305
amp 100
76305
Type 3 - Manual Reset (switchable) These breakers will trip (lever extends to the open position) under a thermal over current condition and will remain tripped until the lever is manually reset, closing the circuit. This series also offers the unique feature of a push-to-trip button to allow you to manually disconnect the circuit. Each breaker is rated up to 42V DC. 76205 Note: Push-to-Trip functions are similar to Manual Reset, but Push to Trip has the additional feature of being manually tripped if circuit interruption is required.
part no. 76265
amp 60
part no. 76205
amp 100
Gasket for Panel Mount Circuit Breaker Gasket wraps around breaker to provide a seal between the circuit breaker housing and the panel it is being installed into.
part no. 8000275
USI Electrical
description gasket for panel mount circuit breaker
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circuit breakers
Type 1 - Automatic Reset
141
Hi-Amp Surface Mount Circuit Breakers This series of circuit breakers are typically used in auxiliary and accessory circuits within trucks, buses, recreational vehicles and marine applications. Breakers are compliant with SAE J1625 and carry a circuit interrupt protection rating of 3,000A at 30V DC per ABYC E-11. Body is made of UL-rated 94V-0 thermoset plastic and cover is made from 94V-0 thermoplastic with an elastomer over mold and gasket to provide it with a weatherproof IP66 rating. Mounting holes are .260” clearance and power studs are ¼”-28 threaded studs (nuts included). Breakers are designed to operate in temperatures between -40°F to 185°F.
ring terminals PAGE 60
⁄4” studs
1
Type 1 - Automatic Reset
circuit breakers 142
These breakers will continuously cycle during a thermal over current condition. Each breaker is rated up to 30V DC.
76405
part no. 76405 76410 76415
amp 60 90 100
part no. 76420 76430
amp 120 150
Type 3 - Manual Reset These breakers will trip (lever extends to the open position) under a thermal over current condition and will remain tripped until the lever is manually reset, closing the circuit. Each breaker is rated up to 42V DC.
76505
part no. 76505 76510 76515
amp 60 90 100
part no. 76520 76530
amp 120 150
Type 3 - Manual Reset (switchable) These breakers will trip (lever extends to the open position) under a thermal over current condition and will remain tripped until the lever is manually reset, closing the circuit. This series also offers the unique feature of a push-to-trip button to allow you to manually disconnect the circuit. Each breaker is rated up to 42V DC. 76605
part no. 76605 76610 76615
USI Electrical
amp 60 90 100
part no. 76620 76630
Ph: 763-746-5150
amp 120 150
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Marine Circuit Breakers This series of circuit breakers allows you the protection of a high amperage circuit breaker, with an added function of a On/Off power switch that is rated up to 3,000 cycles. This series also offers the unique feature of an On-Off function that allows you to manually disconnect the circuit. Each thermal type breaker’s body is made of UL-rated 94V-0 thermoset plastic and cover is made from 94V-0 thermoplastic with an elastomer over mold and gasket to provide it with an IP66 rating allowing them to be marine rated or weatherproof. They also are available in both panel and surface mount styles and in amperage ratings from 60 to 150 amps. Rated up to 48V DC, each breaker is compliant with ABYC E-11, CE, SAE J1171 for ignition protection and for operating temperatures of -40°F to 185°F. Mounting holes are .215” clearance and countersunk .161”. Power studs are 5/16”-18 threaded studs (nuts included).
These panel mount circuit breakers will trip (lever extends to the Off position) under a thermal over current condition and will remain tripped until the lever is manually reset to On, closing the circuit. Breakers are rated up to 48V DC.
88100
part no. 88060
amp 60
part no. 88100
amp 100
1.625
circuit breakers
Type 3 - Manual Reset, Panel Mount
143 Type 3 - Manual Reset, Surface Mount These surface mount circuit breakers will trip (lever extends to the Off position) under a thermal over current condition and will remain tripped until the lever is manually reset to On, closing the circuit. Breakers are rated up to 48V DC.
82120
part no. 82060 82090 82100
USI Electrical
amp 60 90 100
part no. 82120 82150
Ph: 763-746-5150
amp 120 150
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