Fuses
Circuit Breakers
Fuse Holders, Blocks and Accessories
Markets & Applications
OptiFuse
Fuses
Circuit Breakers
Fuse Holders, Blocks and Accessories
Markets & Applications
OptiFuse
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)
High Amperage Circuit BreakersMid Range Circuit Breakers10-32 Stud Circuit BreakersBlade Style Circuit BreakersTube Clip Style Circuit BreakersQuick Connect Circuit BreakersLine Voltage Circuit Breakers
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
About UsContact UsFind a DistributorSell OptiFuse OnlineTrade Shows & EventsKnowledge CenterOptiFuse Blog
OptiFuse

Your trusted manufacturer and distributor of fuses and circuit breakers. Check our stock for immediate shipment!

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

Fuses

Many styles of innovative, versatile fuses are available to protect circuits from dangerous overcurrents in automotive, electronic, and industrial applications.

Diverse circuit breakers for automotive, marine, and line voltage protection with reset functionality.

Circuit Breakers

A comprehensive range of automotive, marine grade and line voltage circuit breakers to protect applications where resettability is needed.

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

Fuse Holders, Blocks and Accessories

Installing circuit protection is easy with our wide variety of customizable fuse holders, sturdy fuse blocks, and compact fuse clips.

New Products

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

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

Ignition Protected Limiter Fuses: Bussmann: ANL, Blue Sea: ANL

Ignition Protected Marine bolt-on limiter fuses

Conforming to SAE J1171. Meets ABYC requirements for DC main circuit protection

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

MBP Fuses and Fuse Holders. Bussmann: MRBF, CBBF-MBC

Marine Rated battery fuses and mounting bars

IP67 and Ignition Protected. Meets ABYC requirements for DC main circuit protection

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. We are always striving at getting better at helping you succeed.

OptiFuse overview: Manufacturer of overcurrent and circuit protection devices, committed to building lasting B2B relationships and trusted partnerships with over 500 distributors
OptiFuse, founded in 2000, offers high-quality overcurrent and circuit protection devices. Known for exceptional distributor support and no minimum order requirements
OptiFuse provides reliable circuit protection devices, emphasizing strong distributor relationships and customer-friendly benefits like no minimum orders or POS reporting
Find a distributor
Useful Links
Help CenterQuality & ComplianceStock LevelsDrop-Ship Program
OptiFuse
e-Mail[email protected]
Phone1-619-593-5050
Address

1675 Pioneer Way, Suite C

El Cajon, CA 92020 USA