Optifuse Circuit Breakers

OptiFuse circuit breakers deliver resettable overcurrent protection for diverse applications that range from automotive and industrial to marine and low-voltage. Unlike fuses, these devices simply need to be reset if they trip. They offer dependable and resettable protection for OptiFuse circuit breakers. This line of products includes blade-style circuit breakers, high-amperage circuit breakers, line voltage circuit breakers, and stud-mount breakers. Most available ratings are for voltages up to 240VAC and 50VDC for both AC and DC applications. The high-amperage breakers are typically rated at 25A to 300A for use with vehicles, marine, and industrial equipment.

Many OptiFuse circuit breakers are thermally protected. Thermal protection uses the current flow to detect overloads. When excessive heat is produced during a fault or overload event, circuit breaker opens to prevent continued current flow. Available protection options include automatic reset breakers and manual reset breakers. The automatic reset feature eliminates the need to manually open the switch in order to reset. The manual reset breakers also work as a power switch.

Found 441 items
Normally In Stock
Optifuse CBW57-EL4-15A Thermal - Push to Reset Breaker
Free U.S Ground shipping
$6.22
$5.18
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Optifuse CBW57-ES-15A Thermal - Push to Reset Breaker
Free U.S Ground shipping
$4.92
$4.10
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Optifuse CBW57-ES-15A-5X Thermal - Push to Reset Breaker
Free U.S Ground shipping
$5.92
$4.93
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Optifuse CBW57-ES-15A-C Thermal - Push to Reset Breaker
Free U.S Ground shipping
$5.24
$4.37
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Optifuse CBW57-ES-15A-P Thermal - Push to Reset Breaker
Free U.S Ground shipping
$5.24
$4.37
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Optifuse CBW57-ES-15A-W Thermal - Push to Reset Breaker
Free U.S Ground shipping
$3.71
$3.09
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Optifuse CBW57-GS-15A-WB Thermal - Push to Reset Breaker
Free U.S Ground shipping
$4.85
$4.04
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Optifuse CBW57-HB-15A-P Thermal - Push to Reset Breaker
Free U.S Ground shipping
$4.13
$3.44
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Optifuse CBW57-HS-15A-5X Thermal - Push to Reset Breaker
Free U.S Ground shipping
$5.47
$4.56
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Optifuse CBW57-HS-15A-P Thermal - Push to Reset Breaker
Free U.S Ground shipping
$5.24
$4.37
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Optifuse CBW57-PB-15A-5X Thermal - Push to Reset Breaker
Free U.S Ground shipping
$6.20
$5.17
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Optifuse CBW57-PB-15A-WX Thermal - Push to Reset Breaker
Free U.S Ground shipping
$5.65
$4.71
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Optifuse CBW57-PS-15A Thermal - Push to Reset Breaker
Free U.S Ground shipping
$4.49
$3.74
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Optifuse CBW57-PS-15A-1X Thermal - Push to Reset Breaker
Free U.S Ground shipping
$4.49
$3.74
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Optifuse CBW57-PS-15A-5X Thermal - Push to Reset Breaker
Free U.S Ground shipping
$5.62
$4.68
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Optifuse CBW58-ES-15A-5C Thermal - Push to Reset Breaker
Free U.S Ground shipping
$8.47
$7.06
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Optifuse CBW58-HL4-15A-5 Thermal - Push to Reset Breaker
Free U.S Ground shipping
$10.73
$8.94
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Optifuse CBW58-HL4-15A-5C Thermal - Push to Reset Breaker
Free U.S Ground shipping
$9.54
$7.95
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Optifuse CBW58-HS-15A-5C Thermal - Push to Reset Breaker
Free U.S Ground shipping
$8.16
$6.80
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Optifuse CBW58-VS-15A Thermal - Push to Reset Breaker
Free U.S Ground shipping
$7.74
$6.45
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Optifuse 351175 High Amp - Automatic Reset Breaker
Free U.S Ground shipping
$60.92
$50.77
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Optifuse 153180 High Amp - Manual Reset Breaker
Free U.S Ground shipping
$55.12
$45.93
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Optifuse 153180-W High Amp - Manual Reset Breaker
Free U.S Ground shipping
$55.12
$45.93
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Optifuse 353180 High Amp - Manual Reset Breaker
Free U.S Ground shipping
$70.92
$59.10
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Optifuse CBW57-HS-18A Thermal - Push to Reset Breaker
Free U.S Ground shipping
$5.24
$4.37
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Optifuse CBW28-1A Thermal - Push to Reset Breaker
Free U.S Ground shipping
$7.82
$6.52
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Optifuse CBW28-2.5A Thermal - Push to Reset Breaker
Free U.S Ground shipping
$7.82
$6.52
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Optifuse 151200 High Amp - Automatic Reset Breaker
Free U.S Ground shipping
$60.92
$50.77
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Optifuse 153200 High Amp - Manual Reset Breaker
Free U.S Ground shipping
$55.12
$45.93
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Optifuse 153200-W High Amp - Manual Reset Breaker
Free U.S Ground shipping
$55.12
$45.93
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Optifuse 353200 High Amp - Manual Reset Breaker
Free U.S Ground shipping
$70.92
$59.10
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Optifuse 553200 High Amp - Manual Reset Breaker
Free U.S Ground shipping
$70.92
$59.10
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Optifuse ACB-H-20A Auto Reset - 10-32 Stud Breaker
Free U.S Ground shipping
$5.28
$4.40
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Optifuse ACB-N-20A Auto Reset - 10-32 Stud Breaker
Free U.S Ground shipping
$5.28
$4.40
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Optifuse ACB-V-20A Auto Reset - 10-32 Stud Breaker
Free U.S Ground shipping
$5.28
$4.40
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Optifuse MOCB2-TP-20A Modified Reset - 0.250"" QC
Free U.S Ground shipping
$12.22
$10.18
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Optifuse ACB2-PL-20A Auto Reset - Blade Breaker
Free U.S Ground shipping
$5.05
$4.21
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Optifuse MOCB2-PCL-20A Modified Reset - Tube Clip
Free U.S Ground shipping
$12.22
$10.18
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Optifuse ACBM-PX-20A Auto Reset - Maxi Blade Breaker
Free U.S Ground shipping
$14.92
$12.43
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Optifuse ACBP4-PL-20A Auto Reset - Regular Blade Breaker
Free U.S Ground shipping
$8.62
$7.18
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Optifuse ACBP4-PM-20A Auto Reset - Maxi Blade Breaker
Free U.S Ground shipping
$6.84
$5.70
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Optifuse ACBP4-PS-20A Auto Reset - Mini Blade LowPro Breaker
Free U.S Ground shipping
$11.71
$9.76
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Optifuse MOCBP4-PM-20A Modified Reset - Mini Blade
Free U.S Ground shipping
$9.29
$7.74
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Optifuse MOCB-24-H-20A Modified Reset- 10-32 Stud
Free U.S Ground shipping
$10.19
$8.49
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Optifuse MRCB-24-H-20A Manual Reset - 10-32 Stud Breaker
Free U.S Ground shipping
$6.62
$5.52
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Optifuse MRCBM-2PX-20A Manual Reset - Maxi Blade Breaker
Free U.S Ground shipping
$16.48
$13.73
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Optifuse MRCBP4-PL-20A Manual Reset - Regular Blade Breaker
Free U.S Ground shipping
$8.62
$7.18
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Optifuse MRCBP4-PM-20A Manual Reset - Maxi Blade Breaker
Free U.S Ground shipping
$10.01
$8.34

FAQs

What are OptiFuse circuit breakers used for?

OptiFuse circuit breakers are used to protect electrical circuits in automotive, marine, and industrial applications from overloads and short circuits while allowing resettable protection.

What types of OptiFuse circuit breakers are available?

OptiFuse offers high-amperage, blade-style, stud-mounted, quick-connect, and line voltage circuit breakers for a wide range of applications.

How do I choose the right OptiFuse circuit breaker?

Choosing the right OptiFuse circuit breaker depends on voltage rating, current rating, reset type (automatic or manual), and the specific application requirements.

What is the difference between automatic and manual reset OptiFuse circuit breakers?

Automatic reset breakers reset themselves after cooling, while manual reset breakers require the user to reset them and can also function as a switch.

Are OptiFuse circuit breakers suitable for industrial applications?

Yes, OptiFuse circuit breakers are used in industrial equipment, vehicles, marine systems, and power distribution applications where reliable, resettable circuit protection is required.

Why Buy OptiFuse Circuit Breakers from RSP Supply

RSP Supply offers OptiFuse circuit breakers with fast shipping and strong inventory availability, helping you protect electrical systems and keep projects moving without delays. Our team provides expert guidance on breaker type, amperage ratings, and application requirements, ensuring you select the right circuit protection solution for reliable performance.