Product Type: Fuses / Circuit Protection

HWB18 Series – Hard-Wired PDM – DC Power Distribution Modules

Ideal for use as the main unit on small vehicles or for accessory circuits and overflow circuits from your main power distribution module (PDM), the compact HWB18 Hard-Wired Waterproof DC Power Distribution Box accepts MINI® fuses, MINI® circuit breakers, MCASE™ fuses (adapter required; sold separately), four-pin single-pole, single-throw (SPST) relays, and five-pin single-pole, double-throw (SPDT) relays.

This hard-wired PDM allows you to customize your own circuitry utilizing direct wire-to-component connections which are crimped to the wire harness with grommets to seal the bottom of the module. Terminal position assurance (TPA) locks offer secondary protection to keep the wires in place. The HWB18 series uses Delphi Metri-Pack 280 terminals, cable seals, and cavity plugs (sold separately).

Featuring a black cover with a gasket, this dust-tight, waterproof power distribution box carries an IP67/IP69K rating, and it features latches that keep the cover securely in place. The base and cover accept a tether (873-680; not included) that helps prevent the loss of the cover during service.

Features & Benefits

  • Holds nine MINI® fuses or a combination of MINI® fuses, MINI® circuit breakers, MCASE™ fuses (adapter required; sold separately), 4-pin single-pole, single-throw (SPST) relays, and 5-pin single-pole, double-throw (SPDT) relays
  • Maximum total continuous current rating of 100 A @ 23 °C and 70 A @ 85 °C
  • Black cover is sealed with a gasket to an IP67/IP69K rating to deliver a waterproof power distribution box that’s safeguarded from dust, moisture, and debris
  • Available with TPAs to help prevent disconnection of wires due to vibration and accidental snagging
  • Optional foam pad available on the inside of the cover for relay retention
  • Thermoplastic base and cover with a UL 94 V-0 flammability rating
  • UL certification means it can be used as a component in material handling and electric-battery-powered industrial truck applications with confidence that it meets the requirements of UL 583 standards

Applications

  • Work Trucks and Specialty Equipment
  • Emergency Vehicles
  • Construction Site Support Equipment
  • Oil and Gas Drilling Equipment
  • Marine Vehicles and Equipment

Click here for a datasheet.

HWB12 Series – Hard-Wired PDM

Ideal for use as the main unit on small vehicles or for accessory circuits and overflow circuits from your main power distribution module (PDM), the compact HWB12 Series 58 V 135 A Hard-Wired Waterproof DC Power Distribution Box accepts MINI® fuses, MINI® circuit breakers, four-pin single-pole, single-throw (SPST) relays, and five-pin single-pole, double-throw (SPDT) relays and MCASE™ fuses (adapter required; sold separately).

This hard-wired PDM allows you to customize your own circuitry utilizing direct wire-to-component connections which are crimped to the wire harness with grommets to seal the bottom of the module. Terminal position assurance locks offer secondary protection to keep the wires in place. The HWB12 series uses TYCO MCP terminals, cable seals, and cavity plugs.

Available with a clear or black cover with a gasket, this dust-tight, waterproof power distribution box carries an IP67 rating, and it features AssureLatch™ positive-sealing latches that keep the cover securely in place. The clear cover option lets you easily see the condition of the installed fuses, and the black cover offers a full UL 94 V-0 flammability rating for applications that require it. An available tether (sold separately) helps prevent the loss of the cover during service.

Features & Benefits

  • Holds six MINI® fuses or a combination of MINI® fuses, MINI® circuit breakers, 4-pin SPST relays, and 5-pin SPDT relays and MCASE™ fuses (adapter required; sold separately)
  • 135 A maximum total continuous current
  • Clear or black cover is sealed with a gasket to an IP67 rating to deliver a waterproof power distribution box that is safeguarded from dust, moisture, and debris
  • AssureLatch™ positive-sealing latches keep the cover securely in place while allowing for fast service
  • Thermoplastic base with a UL 94 V-0 flammability rating
  • Terminal position assurance locks help prevent disconnection of wires due to vibration and accidental snagging
  • Optional foam insert available for relay retention
  • High-temperature gore vents allow heat and pressure to be released while maintaining IP ratings

Applications

  • Work Trucks and Specialty Equipment
  • Emergency Vehicles
  • Construction Site Support Equipment
  • Oil and Gas Drilling Equipment
  • Marine Vehicles and Equipment

Click here for a datasheet.

Littelfuse – Commercial Vehicle Products

Littelfuse offers an extensive product line to help protect, control, and distribute vehicle electrical power in OEM and aftermarket applications for industries such as heavy-duty trucks, construction, and agriculture. Littelfuse offers a broad and reliable selection of fuses, fuse blocks, power distribution modules, high-current switches, relays, and solenoids to fit your requirements. For decades, Littelfuse has helped OEMs, engineers, and end-users select the right product for their applications. Today, Littelfuse offers the broadest range of products for protection, sensing, and control needs while providing the exceptional service and support that our customers expect.

Series 87 Heavy-Duty Marine-Rated Circuit Breaker

This heavy-duty switchable high amp circuit breaker features a manual reset with an on-off switch function. It is available in panel mount or surface mount options. It was designed with a wide amp range from 25 to 250 amp and with two terminal stud sizes, 5/16″-18 or 3/8″-16, allowing the user to right-size wire for higher amp ratings.

The series 87 switchable circuit breaker was designed as a drop-in replacement with enhancements such as more spacing around the studs to accommodate terminal lugs, a double set of contacts, more copper and silver to better clear faults, and a circular panel cut out for ease of use.

Features

  • Made in the USA
  • 48VDC Type III Vehicle Protection
  • 5/16″ and New 3/8″ stainless steel terminal studs and sems nuts
  • On-Off Switch Function
  • Ignition Protected
  • SAE & ABYC Compliant
  • IP66

Ratings

  • Voltage to- 48VDC
  • Current- 25-250 Amps
  • Short Circuit Interrupt to

Testing Performed

  • Vibration: 8g force
  • Shock: 25g force
  • Corrosion: 96hr salt-spray
  • Humidity: 240hr at 95% RH

Click here for a datasheet.

EV1K Series – 1000VDC, 60-600A Fuse

The Littelfuse EV1K series is an electric vehicle (EV) fuse designed to protect high-voltage, high-current onboard applications in electric and hybrid vehicles as well as offboard charging. It was specifically built from the ground up to meet the stringent requirements and standards of the electric vehicle industry.

Features

  • Mechanical shock and vibration durability to increase product longevity
  • High interrupting rating and open state resistance for maximum short circuit protection
  • Thermal shock resistant to handle temperature fluctuations for reliable cycling performance
  • Temperature and humidity resistant to withstand a wide variety of environmental conditions

End Markets

  • Electric and hybrid passenger vehicles
  • Commercial buses, trucks, and other heavy-duty electric and hybrid vehicles
  • Construction and agriculture equipment
  • Onboard and offboard charging infrastructure

Applications

  • Battery pack protection
  • Traction inverter protection
  • Energy storage
  • Power conversion
  • High-voltage power distribution
  • Battery disconnect unit

Click here for a datasheet.

UL/CSA-Listed Power Fuses

Mersen’s comprehensive power fuse offering covers a complete range of applications and circuit protection needs. Whether it’s the characteristics of our Tri-Onic® Time-delay fuses, the high current-limiting capacity of our original Amp-Trap® power fuses, the cost-efficient protection of our One-Time fuses, or any of our complete line of North American and European fuses, Mersen has the fuse you need.

Thermal Circuit Breakers

QLB and QMB series are compact and cost-effective thermal circuit breakers with a wide range of amp ratings from 3A – 40A and are offered in single pole and push-to-reset with safety agency certifications. We offer a large variety of bushing types, terminals, nameplates, button colors, and printing with custom configurations available.

Circuit Breaker Protection

  • UL 489, UL 508, or UL 1077
  • Two lines of AC or DC UL489 Miniature Molded Case Circuit Breakers
  • UL508 Manual Motor Controllers “Suitable as Motor Disconnect”
  • Three-Phase Adjustable Trip Miniature Circuit Breakers/Manual Motor Controllers
  • Two lines of UL1077 Recognized Supplementary Protectors

Midget Fuse Links and Miniature UL/CSA Fuses and Fusegear

Mersen’s international range of midget and miniature dimension and PC mount fuses offers you all the protection you require. A wide range of ratings. Special characteristics like time delay and low I2t. All within a footprint of 1-1/2″ x 13/32″ or less.

Fusegear

Mersen offers a comprehensive line of North American (UL and CSA) fusegear.

Mersen has an extensive line of fuse blocks and fuse holders, including durable Class H, K, or R blocks, UltraSafe™ models for small footprints, traditional Class J blocks, space-saving “SJ” blocks, 600V Class CC and midget dimension holders, and a dozen other fuse holder solutions.