Vehicle Power

Purpose

To provide a universal 12V dc and 24-28V dc connection which is functional, reliable and safe.

Characteristics of Standardised Vehicle Power Connections for 12V dc and 24-28V dc

Vehicle wiring should be designed so that for all vehicle operating conditions:

• for a 12 volt, 25 amp system: the voltage at the Power Connector is no less than 11 volts with a 25 amp load.

• for a 24-28 volt, 20 amp system: the voltage at the Power Connector is no less than 22 volts with a 15 amp load.

Wiring should be taken by the most direct route from the vehicle battery to the Power Connector. Wiring should be protected by an accessible breaker or fuse.

Connector wiring

The vehicle Power Connector should be a chassis mounting socket of the type shown in the diagram (MS3102E20-19S). Note: It is essential that only one supply voltage (either 12 volts or 24-28 volts) should be connected to an individual vehicle outlet. Some equipment in service cannot resolve which voltage to use or may cross-connect the two supplies.

The location of the Power Connector in the vehicle should take into account the location of the power inlet and cable length of the equipment to be connected.

The mating cord plug has part number MS3106E20-19P.