Narva | Flasher Application Guide

Flasher Application Guide



Download Flasher Application Guide

Designed with the Re-seller and Auto Electrician in mind, this Flasher application guide contains the following helpful information –

  • Comprehensive vehicle application guide
  • Industry cross reference
  • Quick reference guide of all Narva flashers and wiring guides

Flashers have come a long way since the early 2 or 3 pin tin can and Narva has a complete range manufactured to meet or exceed international standards. Starting with the low cost thermal units used for older vehicles and auxiliary applications, through to the latest electronic flashers with ‘no load’ circuitry for use with L.E.D lamps.

There are three basic flasher types: Thermal, Electro-Mechanical and Solid State Electronic. The introduction of both Electro-Mechanical flashers and Electronic Flashers has produced a higher level of reliability, a clearer audible sound and a more consistent flash rate under load and temperature variations. Electronic Flashers were introduced in accordance with the function of “outage” or globe failure as required by the Australian Design Rule, ADR 13. Early electronic units are load sensitive, although new units are now available with minimal to no load requirement for use with L.E.D lamps. The range incorporates features such as pilot lamp indication, hazard warning and heavy duty 5, 6 and 7 pin units for B-Double and Road Train applications.

The most popular types can be purchased in bulk trays and all types are available in retail blister packaging.

Narva Flashers are marked with the international pin identification system as shown in the following chart:

Flasher Connections


Lamps or Indicator switch


Pilot X: Battery (+) or Ignition


Battery (+) or Ignition


Earth (-)


Battery (+) or Ignition


Lamps or Indicator switch


Earth (-)


Hazard switch (+)

+ :  

Battery (+) or Ignition

- :  

Earth (-)


Vehicle pilot


1st trailer pilot


2nd trailer pilot