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Hazardous Area Barrier Network Fuse from Littelfuse Enhances Safety in Explosive Environments

Recognized to UL 248-14, the new Littelfuse Hazardous Area Barrier Network Fuse Meets Intrinsic Safety (IS) Standards for Hazardous Area Applications

electronic equipment

Littelfuse unveils the 40mA PICO 242 Series Hazardous Area Barrier Network Fuse. The new 40mA PICO 242 Series Hazardous Area Barrier Network Fuse from Littelfuse touts to support designing barrier circuits for intrinsic safety products to prevent fires and explosions in dangerous atmospheres.

The fuse from Littelfuse prevents electronic equipment used in hazardous locations from overheating or producing sparks that could ignite a fire or explosion by minimizing the risk of overcurrent/short-circuit events.

Image 1 – Caption: PICO 242 Series 40mA Barrier Fuse

The PICO 242 Series Fuse meets the requirements of intrinsic safety standards (IEC/EN/UL 60079-11) for hazardous location and explosive atmosphere applications.

Hence, products designed with it will follow relevant European Directives and other global requirements.

With a 40mA current rating, the PICO 242 Series is the lowest nominal current rated barrier fuse on the market in such a small package size, which supports compact intrinsic safety product design without compromising protection performance.

PICO 242 Series Hazardous Area Barrier Network Fuses offer these Key Benefits:

  • The ultra-low nominal current rating (40mA) allows reducing the power ratings and current-carrying capacity of downstream components, wiring, and circuit board traces.
  • It meets the requirements in intrinsic safety standards (EN/IEC/UL 60079-11) for hazardous area applications and is recognized to UL 248-14, which speeds the certification process for end-products and enables compliance with global requirements.
  • It prevents overcurrent/short-circuit faults in downstream circuits from igniting surrounding explosive atmospheres.

Typical applications for PICO 242 Series Hazardous Area Barrier Network Fuses include:

“The PICO 242 Series’ 40mA nominal current rating offers a significant advantage over earlier 50mA barrier fuses. Designers of intrinsically safe products use the fuse current rating to set the power threshold to which all other components must adhere,” said Christopher Coolman, Global Product Manager, Electronics Business Unit at Littelfuse. “It provides a 20 percent reduction in the power requirements of downstream components such as Zener diodes, which enables more compact design and could result in cost savings of these components.”

PICO 242 Series Hazardous Area Barrier Network Fuses are available in axial-leaded form (in ammo pack in quantities of 100 or 500 pieces) and in surface mount packages (in tape and reel packaging in quantities of 500 pieces). Sample requests may be placed through authorized Littelfuse distributors worldwide.

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Niloy Banerjee

A generic movie-buff, passionate and professional with print journalism, serving editorial verticals on Technical and B2B segments, crude rover and writer on business happenings, spare time playing physical and digital forms of games; a love with philosophy is perennial as trying to archive pebbles from the ocean of literature. Lastly, a connoisseur in making and eating palatable cuisines.

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