BS AU 197 84th Edition, January 31, 1984
Specification for Electrical connections between towing vehicles and trailers with 24 V electrical equipment: type 24 N (normal)
Includes all amendments and changes through Reaffirmation Notice , December 1, 2011
Additional Comments: W/D NO S/S
Published By:British Standards Institution (BSI)
Requirements which will permit, by means of a socket and plug, type 24 N, interchangeability of electrical connections between towing vehicles and trailers which are fitted with electrical equipment operating at 24 V.