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SLP05 Series

Littelfuse’s LSP05G thermally protected Surge Protective Device is a self-protected device specially designed to be used in outdoor and commercial LED lighting fixtures for transient overvoltage protection. It has been developed with Littelfuse’s thermally protected varistor technology. Its built-in thermal disconnect function provides additional protection to prevent catastrophic failure and fire hazard even under extreme circumstances of varistor end-of-life or sustaining over voltage conditions. It also provides high line-to-earth/ground resistance, facilitating faster production line testing.

LSP05G series connected option allows clear indication of thermal fault protection by disconnecting power to luminaire, thereby signaling SPD module replacement. The LSP05G Surge Protective Device facilitates customer’s product compliance to IEEE C62.41.2 Location Category C Low and US Dept. of Energy MSSLC Model Spec.

  • Meets IEEE C62.41.2 Location Category C Low Exposure and ANSI C136.2 Enhanced Level Specs 
  • Thermally protected varistor technology
  • Parallel-connected and series-connected options
  • High line-to-earth/ground resistance
  • UL 1449 recognized  (120Vac and 240Vac voltage ratings)
  • EN/IEC61643-11 Class II compliance* (*Self-declared compliance)
  • Digital Signage
  • Flood Lighting
  • Parking Garage Lighting
  • Roadway Lighting
  • Street Lighting
  • Traffic Lighting
  • Tunnel Lighting
  • Wall Wash Lighting


Access specifications, certifications, check availability and order parts below

Catalog # Size VMAX AC (V) (ITM 1xAmps (A)
LSP05G120P 48.6x28.6x26 120 10000
LSP05G120S 48.6x28.6x26 120 10000
LSP05G240P 48.6x28.6x26 240 10000
LSP05G240S 48.6x28.6x26 240 10000
LSP05G277P 48.6x28.6x26 277 10000
LSP05G277S 48.6x28.6x26 277 10000
LSP05G347P 48.6x28.6x26 347 10000
LSP05G347S 48.6x28.6x26 347 10000
LSP05G480P 48.6x28.6x26 480 10000
LSP05G480PH 48.6x28.6x26 480 10000
LSP05G480S 48.6x28.6x26 480 10000
LSP05G480SH 48.6x28.6x26 480 10000



LSP Modules
LSP Series


Our staff possesses decades of in-depth application knowledge and we are eager to share it with you. All of our field engineers have control gear and fuse backgrounds, making us uniquely qualified to provide solutions to your protection problems. We offer selection software to accurately apply our products, fuse audits to help you streamline your operations, or in-house seminars to educate your personnel. Ask us! 


From the friendly voice that answers the phone, to the delivery that arrives before you expect it, we pride ourselves on delivering the absolute highest level of customer service. At Fusetek, customer service is not an empty promise but the way we do business, each and every day. Use us! 


Can’t find that unusual fuse? Not sure about a particular application? We can help. 

Our quick, knowledgeable replies get you the answers you need, when you need them.   Whether it’s technical assistance, help in finding that special fuse, or quick turnaround to get you out of a jam, we’re here for you. Call us!

Contact Us

Toll free for North America
Tel: 1-800-479-3875
Fax: 1-800-866-7690
International Tel: 1-613-384-4144 International Fax: 1-613-384-0167

Email: info@fusetek.comMailing Address: 599 Norris Crt.
Kingston, Ontario
Canada K7P 2R9