ISO 4165

Comparison of (L to R) two Powerlet plugs, one combination plug, and one cigar lighter plug

ISO 4165 is a standard adopted by the International Organization for Standardization (ISO). It describes a double-pole DC connector to supply between 12 and 24 V DC at up to 12 amps to appliances in vehicles. It is similar in design to a cigar lighter receptacle, but is shorter and smaller in diameter. It was originally a standard fitting on all the German military vehicles during World War II.

The current version of the standard is ISO 4165:2001[1]

Other names

Other names for this connector include:

  • BMW Accessory plug, used on BMW motorcycles
  • Powerlet connector, named after a firm that produces them
  • Hella plug or Merit plug, in Australia

At least one manufacturer sells a combination plug that combines a cigar lighter plug and a Powerlet plug.

References

  1. "ISO 4165:2001 Road vehicles -- Electrical connections -- Double-pole connection". International Organization for Standardization. 2012-04-20.