Download!
UL 913 Intrinsically Safe Fuse Application Note

Enhancing Workplace Safety in Hazardous Locations!  
Gases, petroleum products, and airborne dusts tend, by their very nature, to be explosive if sources of sparks or excess heat are present. Intrinsically safe apparatus have been developed to prevent these hazardous substances from coming into contact with sources of ignition. Prior to the introduction of the Littelfuse PICO® 259-UL913 Intrinsically Safe Fuse, apparatus manufacturers were forced to send fuses to a third-party supplier or create their own secondary process to encapsulate the entire fuse to meet UL 913 safety requirements.

Readers of this application note will learn about:

• Typical hazardous area applications in which the UL 913 standard applies
• Basic principles of fuse operation
• Designing intrinsically safe circuits with PICO 259-UL913 Series Fuses