Fuses
Circuit Breakers
Fuse Holders, Blocks and Accessories
Markets & Applications
Support
OptiFuse
MyOptiFuse[email protected]
Fuses
Circuit Breakers
Fuse Holders, Blocks and Accessories
Markets & Applications
Support
OptiFuse
Fuses
Automotive Blade FusesAutomotive Link FusesAutomotive Bolt On FusesAutomotive Glass FusesElectronic Glass & Ceramic FusesElectronic Surface Mount (SMD) FusesElectronic Micro FusesElectronic Subminiature FusesIndustrial Power FusesTelecom FusesResettable Fuses (PTC)
Circuit Breakers
High Amperage Circuit BreakersMid Range Circuit Breakers10-32 Stud Circuit BreakersBlade Style Circuit BreakersTube Clip Style Circuit BreakersQuick Connect Circuit BreakersLine Voltage Circuit Breakers
Fuse Holders, Blocks and Accessories
Select the fuse or circuit breaker to mount:
Automotive Blade FusesAutomotive Bolt-On FusesAutomotive Glass FusesElectronic Glass & Ceramic FusesElectronic Micro FusesIndustrial Power Fuses10-32 Stud Circuit BreakersBlade Style Circuit BreakersLine Voltage Circuit BreakersTrailer Junction BoxesJunction Posts
Emergency VehiclesHeavy-Duty VehiclesMarineRecreational VehiclesConsumer ElectronicsIndustrial ElectronicsConsumer & Automotive Aftermarket
Product LiteratureCross ReferenceE-Commerce Selling ToolsCertifications, Quality & CompliancePCN & EOL NoticesProduct Quality Support
About UsContact UsFind a DistributorTrade Shows & EventsOptiFuse Blog
OptiFuse

Trusted stocking manufacturer of fuses and circuit breakers. In stock and ready to ship

Various styles of circuit protection fuses for automotive, electronic, and industrial applications.

Fuses

Advanced fuses for reliable circuit protection across automotive, electronics, and industrial applications.

Diverse circuit breakers for automotive, marine, and line voltage protection featuring automatic and manual reset options.

Circuit Breakers

Comprehensive range of automotive, marine-grade, and line voltage circuit breakers for resettable protection.

Wide selection of durable fuse holders, fuse blocks, and compact fuse clips for easy circuit protection installation.

Fuse Holders, Blocks and Accessories

Easy circuit protection installation with customizable fuse holders, fuse blocks, and compact fuse clips.

New Products

Discover the latest in circuit protection at OptiFuse. Let our expertise be at your service

UL Class CC Fuse Block: Bussmann:BCM, Littelfuse: L600C, Mersen: 303

New UL Listed Class CC Fuse Blocks

Available in 1–3 pole versions with optional cover and terminal choices

New Class J Fuses: Bussmann LPJ, Littelfuse JTD, Mersen AJT, Edison JDL

New T6J Time Delay Class J Fuses

Superior current-limiting and overcurrent protection capabilities available in 1 – 600A

Fuse Block with Split Bus: Bluesea: 5032

New blade fuse block with split bus

Compact power and ground distribution with two isolated 6-circuit groups

Stainless steel high-amp breakers: Bussmann 285, Mechanical Products 175.

High-Amps with Stainless Steel hardware

IP67 Waterproof and Ignition Rated for use in marine engine compartments

Class T Fuse Blocks. Blue Sea: 5007100, 5502100

New Class T fuse blocks with insulating cover

BLT3-200 (110A–200A) and BLT3-400 (225A–400A) for 300VAC Class T fuses

Class RK5 Fuses. Bussmann: FRN-R, Littelfuse: FLNR, Mersen: TR-R

OptiFuse UL Class RK5 Fuses - 250VAC 150VDC

Dual Element for superior time-delay performance

Class CC Fuse Blocks: Bussmann: CHCC, Littelfuse: LPSC, Mersen: USCC

New Din-Rail fuse blocks for UL Class CC fuses

Finger/Touch Safe blocks for high voltage systems up to 600VAC/VDC

New 250VAC 80VDC blade fuse. UL-Approved

New 250VAC 80VDC blade fuse. UL-Approved

The highest voltage automotive blade fuse available on the market

Class T Fuses. Bussmann: JJN, JJS | Littelfuse: JLLN, JLLS | Mersen: A3T, A6T

UL listed Class T fuses now available at OptiFuse

300VAC and 600VAC high current limiting protection with a low-profile design

BLR-1200-RM Relay Module

New innovation: Relay Module BLR-1200-RM

Easily attach it to your fuse block enabling the relay to control its power supply

Commercial & Fleet Vehicle Emergency Fuse Kit. Littelfuse: 00941003Z

Commercial & Fleet Vehicle Emergency

Ensures FMCSR compliance with the most popular replacement fuses

New OptiFuse modular design fuse blocks

Find out how two basic modules can be combined into 4 popular fuse blocks

BLR-I-1206-G-and-BLR-I-1212-G fuse blocks. Blue Sea: 5025, 5026

BLR-I-1206-G and BLR-I-1212-G fuse blocks

Compact and solid fuse block for Regular (ATO/ATC style) blade fuses

BLC-65 block for Heavy-Duty MID/MIDA fuses

Used individually or grouped together for protecting multiple circuits

BLC-10 block for High Current MGGA fuses

With flexible cover and interlocking pins to create a multi-fuse block

Marine Rated Shortstops. Bussmann: Series 12X, Blue Sea: Marine Grade Short Stop

Marine Rated 10-32 stud circuit breakers

IP63 and Ignition Protected for the use in marine engine compartments

Mid-Range Circuit Breakers. Bussmann: CB251, CB254, CB255

New Marine Grade Mid Range circuit breakers

IP66 and Ignition Rated circuit protection where resettability is needed

BLX-01-C is now available with a cover

Protect your Maxi style blade fuse against dirt, dust, and splashes

About Us

Distributor focused and growth minded. Helping you grow and succeed

OptiFuse overview: Manufacturer of overcurrent and circuit protection devices, committed to lasting B2B relationships with 500+ trusted distributors.
OptiFuse, founded in 2000, provides high-quality overcurrent and circuit protection devices with strong distributor support and no minimum orders.
OptiFuse offers reliable circuit protection devices, focusing on strong distributor partnerships and benefits like no minimum orders or POS reporting.

Find a distributor

Useful Links
Help CenterStock LevelsDrop-Ship ProgramJobs & Careers
OptiFuse
e-Mail[email protected]
Phone1-619-593-5050
Address

1675 Pioneer Way, Suite C

El Cajon, CA 92020 USA