Protecting luminaires in Class I or Class II installations

1st March 2018

Alice Matthews

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Global circuit protection company, Littelfuse, has announced the LSP05GI series - a 10kV/5kA capable surge protection module with IEC/EN 61643-11 certification to help luminaire manufacturers meet the latest testing standards. It also provides double insulated cable to simplify cable routing design in the luminaire.

The LSP05GI series is suitable for a range of applications including roadway and street lighting, traffic lighting, parking garage lighting, wash wall lighting, digital signage, tunnel lighting, and flood lighting.

Key features:

IEC 61643-11/EN61643-11 approved
Double insulated cable wire
Built-in LED indicator
Meets ANSI C82.77-5-2015: Location C Medium, 10kV/5kA, 1.2/50µs-8/20µs Combination Wave
Meets ANSI C136.2-2015: Enhanced Level, 10kV/5kA, 1.2/50µs-8/20µs Combination Wave
Meets IEEE C62.41.2: Location Category C Low, 6kV/3kA, 1.2/50µs-8/20µs Combination Wave
Thermally protected
Series-connected and parallel-connected options
IP66 rated

This UL 1449 approved surge protective device (SPD) has a built-in LED indicator that notifies maintenance personnel when it should be replaced.

Key benefits:

Enables meeting IEC/EN 60598-1 international testing standard for luminaire
Allows routing the cable freely, the cable can be routed freely in the luminaire or lighting pole without additional insulation tube or cable management clip/tie in a Class II insulation installation
Alerts maintenance to the need for replacement
Offers an option suitable for use in many parts of the world
Protects against light or facility hazards due to ‘end-of-life’ or extreme surge conditions
Series connection disconnects the power to protect the luminaire; parallel connection disconnects itself at end-of-life and keeps luminaire powered
Offers a dust-tight and water-resistant solution

Parallel and series connections using an SPD
Parallel connection

Thermal protection prevents MOV fire hazard caused by unstable line voltage and end-of-life failure
LED indicator alerts maintenance personnel to replace the module

Series connection

Thermal protection prevents MOV fire hazard caused by unstable line voltage and end-of-life failure
Series-connected SPD cutsoff power to the luminaire to indicate clearly when module replacement is required.

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