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Let Littelfuse help you increase your circuit protection and efficiently control electrical power to protect your contractors and industrial employees against, power surges, short circuits and arc flash.

Werner Electric and Littelfuse partner to maximize electrical safety, energy efficiency and regulatory compliance. Littelfuse products range from POWR-GARD industrial fuses to POWR-SPEED high-speed fuses, E-rated and R-rated medium voltage fuses, and UL rated fuses. Additional accessories such as fuse blocks, fuse holders and power and ground fault relays are available through Werner Electric Supply. 

Littelfuse Everywhere, Every Day

Many of the products you use every day contain Littelfuse products. They’re an integral part of smart phones, kitchen appliances, automotive electronics, HVAC, water/wastewater, energy, transportation, and beyond.

Shock Block® | Safeguard Workers from Electrical Shock

Industrial Shock Block® (ISB) is a personnel protection device designed to meet the requirements for special-purpose GFCIs defined by UL 943C. This standard outlines GFCI classes specifically designed for use in industrial facilities. The Industrial Shock Block includes an automatic self-test feature and is compliant to the UL 1998 Software in Programmable Components standard.


+ Littelfuse Industrial Products Flyer
+ Littelfuse Capabilities Brochure

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