Circuit Protection

Circuit Protection Components for Electrical, Fleet & Industrial Applications

Ensure the safety, reliability, and efficiency of your electrical systems with our comprehensive selection of circuit protection components. Our range includes circuit breakers, fuses, fuse blocks, relays, switches, and junction blocks - engineered for vehicle upfits, equipment maintenance, and electrical panel installations.

Circuit Breakers & Fuses (Overcurrent Protection)

Explore our full line of circuit breakers and fuses for overcurrent protection in industrial panels and fleet vehicles. These components interrupt excessive current flow, preventing damage to wiring and sensitive equipment.

Fuse Holders, Fuse Taps & Fuse Blocks / Panels (Power Distribution)

Organize and streamline your power distribution with fuse holders, fuse taps, and fuse blocks. These products provide secure mounting and easy access for serviceable fuses, supporting quick replacement and minimizing downtime.

Relays, Switches & Solenoids (Control Components)

Control power flow and automate electrical functions with our range of relays, switches, and solenoids. Choose from plug-in relays, heavy-duty solenoids, and toggle or rocker switches.

Terminal Junction Blocks & Electrical Connection Points

Simplify wiring and ensure secure connections with terminal junction blocks. These components provide organized, accessible locations for joining multiple wires.

Flashers & Signaling Components

Enhance safety with flashers and signaling components designed for fleet vehicles and industrial equipment, supporting turn signals, hazard lights, and other visual alerts.

Value Propositions

  • Protects wiring and equipment from overload/short circuits: Prevent costly damage and downtime with reliable overcurrent protection.
  • Streamlines power distribution with organized blocks/panels: Maintain clean, scalable electrical systems for easier troubleshooting and expansion.
  • Service-friendly components (replaceable fuses, relay sockets): Minimize maintenance time with accessible, modular parts.
  • Supports fleet upfit, industrial maintenance, and electrical installs: Engineered for demanding environments and diverse applications.
  • Helps meet reliability and safety requirements in harsh environments: Built to withstand vibration, moisture, and temperature extremes.
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TERMINAL BLOCK DOUBLE ROW, 4 POSITIONS 30A, 300V

XTB100-04
  • Panel mount terminal block connector
  • 30 amp
  • 4 pole
  • 300 Volt
  • Double row barrier
  • Breakdown voltage 3600V
  • #6-32 TPI Screw, Screw, Black, Tin-plated brass terminal, Zinc-plated Steel philslot screw
    $14.875
    + -

    VELVAC JUNCTION BOX SEVEN TERMINAL(STUD)

    XV055060
    • Electrical junction box.
    • Measures 6-9/16" x 3-1/4".
    • Includes all fasteners and grommets.
    • 7 stud terminals.
    • Comes with protective cover.
      $29.40
      + -

      CARLING CONTURA SWITCH BODY (ON)-OFF-(ON) UNLIT

      XVDD1S00B
      • Rocker Switch
      • Double Pole Double Throw
      • 20 amp
      • 12VDC
      • Easy installation: actuators snap onto switch body
      • 6 Contacts
        $194.14
        $19.4138
        + -

        CARLING MOUNTING PANEL END

        XVME-01
        • Mounting Bracket end
        • Dimensions: 1.19" W x 2.30" H
        • End unit reverses to fit either side of the middle unit
        • For use with the Contura Rocker Switches
          $53.98
          $5.3976
          + -

          CARLING SINGLE MOUNTING PANEL

          XVMM-01
          • Mounting Bracket Center
          • Dimensions: 1.34" W x 2.03" H
          • Mounting hole: 1.03" W x 1.97" H
          • For use with the Contura Rocker Switches
          • Used where multiple switches can be installed with only one hold to cut in your panel
          • Black
            $57.27
            $5.727
            + -

            CARLING CONTURA II SWITCH ACTUATOR BLACK SOFT RED LENS

            XVVARB00-000
            • Aesthetic design of raised "bumps" on the top and bottom of the rocker
            • Fits the Contura switch bodies
            • Easy installation: actuators snap onto switch body
            • Constructed of thermoplastic polycarbonate
              $7.2028
              + -

              FUSE HOLDER - MAXI FUSE, 60 AMP, 8 GAUGE WIRE LEADS

              XW31860
              $32.175
              + -

              FUSE HOLDER - ATO/ATC 30 AMP, 10 GAUGE W/COVER BLACK WIRE

              XWPATCFH-10
              • In-line fuse holder for ATO/ATC fuses.
              • Black fuseholder with protective cap.
              • Black, 10 gauge wire leads.
              • 3-30 amps.
                $76.45
                $7.645
                + -

                FUSE HOLDER - ATO/ATC 16 GAUGE WIRE LEADS WATERPROOF

                XWPATCFH-16
                • In-line fuse holder for ATO/ATC fuses.
                • Red fuseholder with protective cap.
                • Red, 16 gauge wire leads.
                  $57.75
                  $5.775
                  + -

                  FUSE HOLDER - ATO/ATC 14 GAUGE WIRE LEADS WATERPROOF

                  XWPATCFH-14
                  • Fuse holder for ATO/ATC fuses
                  • Fuse holder with waterproof cap
                  • 14 gauge wire leads
                    $63.25
                    $6.325
                    + -

                    FUSE HOLDER - ATO/ATC 12 GAUGE WIRE LEADS WATERPROOF

                    XWPATCFH-12
                    • Fuse holder for ATO/ATC fuses
                    • Fuse holder with waterproof cap
                    • 12 gauge wire leads
                    • 10 - 30 amps
                      $74.25
                      $7.425
                      + -

                      FUSE HOLDER - ATO/ATC 30 AMP, 10 GAUGE W/COVER RED WIRE

                      XWPATCFH-10R
                      • In-Line fuse holder for ATO/ATC fuses
                      • Red fuse holder with splashproof cap
                      • 10 gauge wire leads
                      • 10 - 40 amps
                        $66.24
                        $6.6242
                        + -

                        FUSE - ZCASE 175 AMP

                        ZCAS175B
                        • The fuse design is optimized for a one bolt connecction M6.
                        • Can be used directly on a battery post or busbar connection.
                        • 175 amps.
                          $20.625
                          + -

                          FUSE - ZCASE 250 AMP

                          ZCAS250B
                          • The fuse design is optimized for a one bolt connecction M6.
                          • Can be used directly on a battery post or busbar connection.
                          • 175 amps.
                            $15.6825
                            + -

                            CIRCUIT BREAKER 85 SERIES, 150 AMP

                            X4703150B
                            $56.70
                            + -

                            FUSE - MEGA, 80 AMP

                            XMEG80
                            • Mega Fuse
                            • 80 AMPs
                            $13.005
                            + -

                            RELAY AND HARNESS, 5 PIN, 12 AWG & 16 AWG WIRES

                            X5PINRH12/16
                            $97.31
                            $19.4625
                            + -

                            FUSE HOLDER - MICRO 2, 30 AMP, 12 GAUGE, SPLASH PROOF W/ LED INDICATOR

                            SPMIC2FHLED-12
                            $236.21
                            $9.4482
                            + -

                            RELAY 12 V, SPDT NO BRACKET W/RESISTOR, 5 PIN

                            X0332201107
                            • 12 volts
                            • SPDT
                              $163.20
                              $16.32
                              + -

                              RELAY 12 V, 40 A 5PINR SPDT, NO BRACKET

                              X0332204151
                              • Standard mini relay.
                              • Originally designed for use in automotive applications.
                              • Used to switch electrical devices featuring high power levels, or which are sensitive to voltage loss.
                              • Relays relieve the load on control switches and make for small voltage drops.
                              • Single pole, double throw.
                              • Does not have a bracket.
                              • Rated for 12-15 volt applications.
                              • Maximum resistive load is 40 amps.
                                $15.385
                                + -

                                CIRCUIT BREAKER WATERPROOF TYPE III 100 AMP MANUAL RESET

                                X100CB175
                                • High amp type III switchable manual reset circuit breaker.
                                • Flush mount with sems nut installed.
                                • Typically used in auxiliary and accessory circuits for trucks, busses, RVs and marine applications.
                                • Also have applications in battery charger systems and DC audio systems.
                                • 100 amp.
                                  $75.33
                                  + -

                                  CIRCUIT BREAKER WATERPROOF TYPE III, 100 AMP MANUAL RESET

                                  X100CB185
                                  • High amp type III switchable manual reset circuit breaker.
                                  • Flush mount with sems nut installed.
                                  • Typically used in auxiliary and accessory circuits for trucks, busses, RVs and marine applications.
                                  • Also have applications in battery charger systems and DC audio systems.
                                  • 100 amp.
                                    $76.4235
                                    + -

                                    FUSE BLOCK - ATO/ATC 4 GANG ATO/ATC, NO CONTACTS

                                    X12004943
                                    • Units slide together to gang for multiple combinations.
                                    • Mounting holes for #10 screws are 3-1/8" apart.
                                    • Does not include terminals
                                      $5.634
                                      + -

                                      RELAY 12 V, SPDT MICRO 280 TERMINALS W/RESISTOR, 30 AMPS NO BRACKET

                                      X12077866
                                      • Compact and capable operating at up to 30A and 12VDC
                                      • Ideal for Headlight Control, Fuel Pump Control, Horn Control, A/C Compressor Clutch, Etc.
                                      • Plastic sealed and designed with parallel transient suppression resistor and a Form C contact
                                        $165.61
                                        $16.5606
                                        + -
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