Littelfuse Launches SB5000 Industrial Shock Block® Ground-Fault Circuit Interrupter

SB5000 series protects personnel from electrical shock and reduces nuisance tripping

SB5000 Left Shadow

Littelfuse, Inc., (NASDAQ: LFUS), an industrial technology manufacturing company empowering a sustainable, connected, and safer world, launches its SB5000 Industrial Shock Block Ground-Fault Circuit Interrupter (GFCI) to help protect workers from electrical shock by detecting leakage current, and interrupting the circuit for loads up to 60 A. In addition, the SB5000’s advanced ground check protection functionality monitors the ground wire for continuity, from the Shock Block to the load, to interrupt power or prevent energization of equipment if compromised.

The SB5000 Shock Block is suitable for many industries such as food and beverage, commercial kitchens, construction, mining, general manufacturing as well as in places where electrical equipment is being used outdoors or in wet environments.

“More than 90 percent of electrical fatalities among US workers are due to electrical shock, and even minor shock injuries can result in life-altering and debilitating symptoms,” stated Mark Pollock, global product manager, Littelfuse Industrial Business Unit. “To help prevent these events, systems should be designed to eliminate the hazards with engineering controls like the Littelfuse SB5000 Shock Block which helps reduce system downtime, lower costs, and most importantly prevent personnel injuries and fatalities.”

In addition to the standard functions such as a 6 mA trip level for Class A and 20 mA for Class C and D devices, the Littelfuse SB5000 Shock Block:

  • reduces unnecessary tripping by implementing the inverse time curve defined by UL 943 as well as a DFT filtering algorithm;
  • includes NEMA 4X and IP69K enclosure ratings for all food preparation environments; and
  • has advanced ground-check functionality with a two-stage Zener termination option meeting CSA M421 which can identify a crushed cable before the equipment is energized.

The UL Listed* SB5000 Shock Block series is available in various models. The Special-Purpose Ground-Fault Circuit Interrupter (SPGFCI) is designed to meet the requirements for special-purpose GFCIs as defined by UL 943C for industrial applications. It includes Class C for three-phase systems with 480 V or less and Class D for 600 V systems. The Class A Ground-Fault Circuit Interrupter (GFCI) is for non-dwelling units using plug and cord equipment to meet NEC 210.8(B) for three-phase loads up to 60 A. The Equipment Ground-Fault Protective Device (EGFPD) model is available with adjustable protection set points from 6 mA–100 mA for added flexibility.

For more information visit: Littelfuse.com/SB5000

*UL Listed Class A GFCI (UL943); UL Listed Class C, D SPGFCI (UL 943C); cULus Listed EGFPD; UL 1998

Share on Socials!

Related Articles

Related Articles

Vault Blowers and Accessories

California Turbo manufactures a wide range of utility vault blowers. Blowers are available to provide either positive or negative pressure in vaults. Swingout model blowers provide ...
Read More

The World’s First and Best Reel Platforms

Roll-A-Reel® is a manufacturer of reel handling platforms. Roll-A-Reels® allows one person to load, wind/unwind any thing on reels & spools up to 3000 lbs. We ...
Read More

Cementex Announces Insulating Rubber Apron Now Available with New Belt Strap

Ideal for technicians working on or around battery storage systems Cementex, the safety tool specialists, announces the availability of its insulating rubber apron, now available with ...
Read More