Littelfuse Thermally Protected Varistor Module, 277 V Varistor Voltage, Metal Material, LSP05 Series LSP05

Littelfuse LSP05 thermally protected varistor module (Model LSP05) offers effective transient overvoltage protection at 277 V varistor voltage with a metal construction designed for durability in demanding environments. This device is designed primarily for outdoor and commercial LED lighting fixtures, including roadway and traffic lighting as well as digital signage and flood lighting applications.

The LSP05 series includes a built-in thermal disconnect function that provides additional safety by preventing catastrophic failures and fire hazards. It withstands maximum AC voltage of 320 V AC and a transient surge current up to 10kA (8/20μs waveform). The device operates efficiently within a temperature range of -45°C to 85°C, making it reliable in diverse environmental conditions.

Its compact form factor of 64mm length, 48mm depth, and 30mm thickness along with mounting flanges allows for easy integration into electrical systems. The unit features IP66 protection, ensuring robust resistance to dust and water ingress, ideal for outdoor installations.

This varistor module meets key international standards including UL1449, IEEE C62.41.2, EN61643-11 Type 2, CE IEC61643-11 Class II, and ANSI C136.2, guaranteeing performance and safety compliance for industrial and commercial applications.

Typical use cases include surge protection for outdoor and commercial LED lighting, roadway lighting, traffic control signals, street lights, and flood lighting to safeguard sensitive electronic components from transient voltage spikes primarily caused by switching actions or lightning disturbances.

Constructed with metal material for durability and reliability. Rated Varistor voltage of 277 V suitable for surge protection. Series LSP05 features a built-in thermal disconnect to prevent catastrophic failure. Maximum AC voltage rating is 320 V AC for enhanced protection.

Capable of handling a maximum surge current of 10kA with 8/20μs waveform. Operating temperature range from -45°C to 85°C for varied environments. Compact dimensions: length 64mm, depth 48mm, and thickness 30mm with mounting flanges.

IP66 protection rating ensures resistance to dust and water ingress. Complies with UL1449, IEEE C62.41.2, EN61643-11 Type 2, CE IEC61643-11 Class II, ANSI C136.2 standards. Designed for use in outdoor LED lighting, roadway, traffic, street, and flood lighting applications.

For industrial-grade surge protection components, explore the Littelfuse product range and related products at EnvMart.