Littelfuse, Inc. Datasheets for Circuit Breakers

Circuit breakers are mechanical switching devices capable of breaking currents under specified abnormal circuit conditions.
Circuit Breakers: Learn more

Product Name Notes
30418 MINI Circuit Breakers -- 30418-10
30418 MINI Circuit Breakers -- 30418-15
30418 MINI Circuit Breakers -- 30418-20
30418 MINI Circuit Breakers -- 30418-25
ATO Blade Circuit Breakers -- 22705-01
ATO Blade Circuit Breakers -- 22710-01
ATO Blade Circuit Breakers -- 22715-01
ATO Blade Circuit Breakers -- 22720-01
ATO Blade Circuit Breakers -- 22725-01
ATO Blade Circuit Breakers -- 22730-01
ATO Blade Circuit Breakers -- 22775-01
Glass Fuse Type Circuit Breakers -- 30410-15
Glass Fuse Type Circuit Breakers -- 30410_10
Glass Fuse Type Circuit Breakers -- 30410_20
Glass Fuse Type Circuit Breakers -- 30410_25
Glass Fuse Type Circuit Breakers -- 30410_30
MAXI Blade Circuit Breakers -- 0MCB020.X
MAXI Blade Circuit Breakers -- 0MCB030.X
MAXI Blade Circuit Breakers -- 0MCB040.X
MAXI Blade Circuit Breakers -- 0MXB020.X
MAXI Blade Circuit Breakers -- 0MXB030.X
Mini Blade Circuit Breakers -- 0MMB015.X
Mini Blade Circuit Breakers -- 0MMB020.X
Mini Blade Circuit Breakers -- 0MNB010.X
Mini Blade Circuit Breakers -- 0MNB015.X
Mini Blade Circuit Breakers -- 0MNB020.X
Mini Blade Circuit Breakers -- 0MNB025.X
Mini Blade Circuit Breakers -- 0MNB030.Z
Circuit Breaker
30409 ATO Circuit Breakers -- 30409-10
30409 ATO Circuit Breakers -- 30409-20
30409 ATO Circuit Breakers -- 30409-25
Circuit breakers and fuses are a cost-effective solution to protecting wiring, equipment and subsystems. While fuses are a one-time, disposable solution, circuit breakers can be re-used after overload. Part number...
Mini Blade Circuit Breakers -- 211010
Mini Blade Circuit Breakers -- 211015
Mini Blade Circuit Breakers -- 211020
Mini Blade Circuit Breakers -- 211025
Mini Blade Circuit Breakers -- 211030
Designed to fit in a MINI blade fuse block or panel. Conforms to SAE J553. Cycles or continuously resets until the fault is corrected. Type I circuit breakers are typically...
Circuit Breakers -- 0MIB005.X
Circuit Breakers -- 0MIB010.X
Circuit Breakers -- 0MIB015.X
Circuit Breakers -- 0MIB020.X
Circuit Breakers -- 0MIB025.X
Circuit Breakers -- 0MIB030.X
Designed to fit in a MINI® Blade fuse block or panel. SAE Type II used primarily as a wiring harness protector in 12-Volt DC automotive systems. Conforms to SAE J553C...
Circuit Breakers -- ACB20
Circuit Breakers -- ACB20BP
Circuit Breakers -- ACB30
Circuit Breakers -- ACB30BP
Circuit Breakers -- CCB25
Circuit Breakers -- CCB25BP
Circuit Breakers -- FCB20
Circuit Breakers -- FCB20BP
Direct factory replacement for many domestic OEM vehicles. SAE Type I and Type II modified reset used primarily as a wiring harness protector in 12 volt DC automotive systems. Conforms...
Circuit Breakers -- CBF10BP
Circuit Breakers -- CBF15BP
Circuit Breakers -- CBF20BP
Circuit Breakers -- CBF25BP
Circuit Breakers -- CBF30BP
Circuit Breakers -- CBF35BP
Circuit Breakers -- CBF40BP
Direct replacement for many OEM applications. Designed for glass fuses without physical alteration in the system. Fits 1 1/4" fuse clips. SAE Type II non-cycling used primarily as a wiring...
Circuit Breakers -- CBF10
Circuit Breakers -- CBF15
Circuit Breakers -- CBF20
Circuit Breakers -- CBF25
Circuit Breakers -- CBF30
Circuit Breakers -- CBF35
Circuit Breakers -- CBF40
Direct replacement for many OEM applications. Designed for glass fuses without physical alteration in the system. Fits 1inch fuse clips. SAE Type II non-cycling used primarily as a wiring harness...
30419 MINI Circuit Breakers -- 30419-10
30419 MINI Circuit Breakers -- 30419-15
30419 MINI Circuit Breakers -- 30419-20
30419 MINI Circuit Breakers -- 30419-25
MINI® Circuit Breakers Standard Mini Footprint Circuit Breakers are designed to fit in a MINI® Blade fuse block or panel. SAE Type II used primarily as a wiring...
Battery mini Breaker -- MHP-TAM15-9-72
Battery mini Breaker -- MHP-TAM15-9-77
Battery mini Breaker -- MHP-TAM15-9-82
Battery mini Breaker -- MHP-TAM15-9-85
Battery mini Breaker -- MHP-TAM15-9-90
Battery mini Breaker -- MHP-TAM6-9-72
Battery mini Breaker -- MHP-TAM6-9-77
Battery mini Breaker -- MHP-TAM6-9-82
Battery mini Breaker -- MHP-TAM6-9-85
Protecting battery packs, while keeping a low profile. Our MHP-TA device offers a 9VDC rating and a higher current rating than typical battery strap devices. Most ultra-thin computing products use...
Circuit Breakers -- 812005ST
Circuit Breakers -- 812006ST
Circuit Breakers -- 812010ST
Circuit Breakers -- 812015ST
Circuit Breakers -- 812020ST
Circuit Breakers -- 812025ST
Circuit Breakers -- 812030ST
Circuit Breakers -- 812040ST
Circuit Breakers -- 812050ST
Circuit Breakers -- 813005ST
Circuit Breakers -- 813008ST
Circuit Breakers -- 813010ST
Circuit Breakers -- 813015ST
Circuit Breakers -- 813020ST
Circuit Breakers -- 813025ST
Circuit Breakers -- 813030ST
Circuit Breakers -- 813040ST
Circuit Breakers -- 813050ST
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...
Circuit Breakers -- 813020BP
Circuit Breakers -- 813030BP
Circuit Breakers -- 813040BP
Circuit Breakers -- 813050BP
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...
Battery mini Breaker -- MHP-TAC15-12-72
Battery mini Breaker -- MHP-TAC15-12-77
Battery mini Breaker -- MHP-TAC15-12-82
Battery mini Breaker -- MHP-TAC15-12-85
Battery mini Breaker -- MHP-TAC15-12-90
Battery mini Breaker -- MHP-TAC6-12-72
Battery mini Breaker -- MHP-TAC6-12-77
Battery mini Breaker -- MHP-TAC6-12-82
Battery mini Breaker -- MHP-TAC6-12-85
The new Metal Hybrid PPTC device, MHP-TAC, offers higher voltage rating (12VDC) and smaller size than typical MHP-TAM devices. MHP-TAC helps to meet the battery safety requirements of higher-capacity Lithium...
Battery mini Breaker -- MHP-TAT18-9-72
Battery mini Breaker -- MHP-TAT18-9-77
Battery mini Breaker -- MHP-TAT18-9-82
Battery mini Breaker -- MHP-TAT18-9-85
Battery mini Breaker -- MHP-TAT18-9-90
The new MHP Metal Hybrid PPTC device, MHP-TAT18, offers a 9VDC rating and a higher current rating than typical MHP-TAM device. This helps to meet the battery safety requirements of...
Box Style Circuit Breakers -- 30174_10
Box Style Circuit Breakers -- 30174_15
Box Style Circuit Breakers -- 30174_20
Type I Automatic Reset
30409 ATO Circuit Breakers -- 30409-15
30409 ATO Circuit Breakers -- 30409-30
Type I Blade UCB
Box Style Circuit Breakers -- 3088-50
Box Style Circuit Breakers -- 3088-60
Box Style Circuit Breakers -- 3088-80
Type I Double Breaker Assembly
Box Style Circuit Breakers -- 30507-60
Box Style Circuit Breakers -- 30507-80
Type I Sealed Double Breaker Assembly
Box Style Circuit Breakers -- 30138-10
Box Style Circuit Breakers -- 30138-15
Box Style Circuit Breakers -- 30138-30
Box Style Circuit Breakers -- 30138-40
Type I sealed with Bracket
Box Style Circuit Breakers -- 30137-10
Box Style Circuit Breakers -- 30137-15
Box Style Circuit Breakers -- 30137-20
Box Style Circuit Breakers -- 30137-30
Type I Snap-In Sealed
Box Style Circuit Breakers -- 30063-10
Box Style Circuit Breakers -- 30063-20
Box Style Circuit Breakers -- 30063-30
Type I Snap-In with Wire Leads
Box Style Circuit Breakers -- 30056-10
Box Style Circuit Breakers -- 30056-15
Box Style Circuit Breakers -- 30056-20
Box Style Circuit Breakers -- 30056-25
Box Style Circuit Breakers -- 30056-30
Box Style Circuit Breakers -- 30056-40
Box Style Circuit Breakers -- 30056-50
Box Style Circuit Breakers -- 30171-10
Box Style Circuit Breakers -- 30171-15
Box Style Circuit Breakers -- 30171-20
Box Style Circuit Breakers -- 30171-30
Type I Snap-In
Box Style Circuit Breakers -- 30062-20
Box Style Circuit Breakers -- 30062-30
Box Style Circuit Breakers -- 30062_10
Box Style Circuit Breakers -- 30062_40
Type I with Bracket and Wire Leads
Box Style Circuit Breakers -- 30055-10
Box Style Circuit Breakers -- 30055-15
Box Style Circuit Breakers -- 30055-20
Box Style Circuit Breakers -- 30055-25
Box Style Circuit Breakers -- 30055-30
Box Style Circuit Breakers -- 30055-40
Box Style Circuit Breakers -- 30055-50
Box Style Circuit Breakers -- 30055-8
Box Style Circuit Breakers -- 30172-10
Box Style Circuit Breakers -- 30172-15
Box Style Circuit Breakers -- 30172-20
Box Style Circuit Breakers -- 30172-30
Box Style Circuit Breakers -- 30427-40
Box Style Circuit Breakers -- 30427_15
Box Style Circuit Breakers -- 30427_30
Box Style Circuit Breakers -- 30427_50
Type I with Bracket
Box Style Circuit Breakers -- 30128-10
Box Style Circuit Breakers -- 30128-15
Box Style Circuit Breakers -- 30128-20
Box Style Circuit Breakers -- 30128-30
Box Style Circuit Breakers -- 30128-40
Box Style Circuit Breakers -- 30128_25
Type I with Cross-Bracket
Box Style Circuit Breakers -- 30103_40
Box Style Circuit Breakers -- 30158_30
Box Style Circuit Breakers -- 30504_10
Box Style Circuit Breakers -- 30504_20
Box Style Circuit Breakers -- 30504_25
Box Style Circuit Breakers -- 30504_30
Type I
Mini Blade Circuit Breakers -- 0MNB030.X Type II Mini Blade Circuit Breaker
Box Style Circuit Breakers -- 30181_15
Box Style Circuit Breakers -- 30181_40
Type II Modified Reset
Box Style Circuit Breakers -- 30423_10 Type III Manual Reset
Hi_Amp Thermo Plastic Circuit Breakers -- 185050
Hi_Amp Thermo Plastic Circuit Breakers -- 185060
Hi_Amp Thermo Plastic Circuit Breakers -- 185070
Hi_Amp Thermo Plastic Circuit Breakers -- 185080
Hi_Amp Thermo Plastic Circuit Breakers -- 185100
Hi_Amp Thermo Plastic Circuit Breakers -- 185120
Hi_Amp Thermo Plastic Circuit Breakers -- 185150
Type III Waterproof Themo Plastic
Circuit Breakers -- BUCB005.Z
Circuit Breakers -- BUCB010.Z
Circuit Breakers -- BUCB015.Z
Circuit Breakers -- BUCB020.Z
Circuit Breakers -- BUCB025.Z
Circuit Breakers -- BUCB030.Z
Circuit Breakers -- UCB15
Circuit Breakers -- UCB15BP
Circuit Breakers -- UCB20
Circuit Breakers -- UCB20BP
Circuit Breakers -- UCB25
Circuit Breakers -- UCB25BP
Circuit Breakers -- UCB30
Circuit Breakers -- UCB30BP
Circuit Breakers -- UCB5
Circuit Breakers -- UCB5BP
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...