Surge Protection Modules

Part Number Information
Part #: Price/Availability:
LSP05 Buy Now
LSP10 Buy Now

Lighting Surge Protector (LSP) modules are specially designed to be used in outdoor and commercial LED lighting fixtures for transient overvoltage protection. They are constructed with Littelfuse thermally protected varistor technology which prevents catastrophic failure and fire hazard even under the extreme circumstances of varistor end-of-life or sustaining over voltage conditions. The LSP modules facilitate customer’s product compliance to IEEE C62.41.2 Location Category C Low and US Department of Energy MSSLC Model Spec.

There are two series: the LSP05 (5K Amp Nominal Surge rating, 10 KA Max) and LSP10 (10K Amp nominal surge rating, 20K Amp Max). Each series has multiple voltage ranges ranging from 120V to 480V. The LSP Thermally Protected Varistor Module is replaceable and reduces maintenance costs while extending luminaire lifetime. The indication wire can be connected to an indication circuit for luminaire monitoring purposes.


• Maximum lightning surge current 20kA
• Thermally protected varistor technology
• Parallel-connected and series-connected options
• Complies with UL1449/IEC61643-11
• Ingress protection IP66
• Wide operation voltage 120Vac~480Vac


• Outdoor and Commercial LED Lighting
• Digital Signage
• Flood Lighting
• Parking Garage/Parking Lot Lighting
• Roadway Lighting
• Street Lighting
• Traffic Lighting
• Tunnel Lighting
• Wall Wash Lighting