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...

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