23
Electrical
Requirements
Cable
Conductor Size
The cable outside the cab shall be a minimum of 16 gauge (1.0 mm²). The cable inside the cab shall be a minimum size
of 18 gauge (0.8 mm²). Note that these sizes are minimum requirements only. Conductor size may need to be increased
depending on current carrying requirements.
Conductor Material
Conducting material shall be stranded bare copper wire.
Conductor Construction
Insulation Material and Thickness
The cable shall be GXL: General Purpose, Cross (X) Linked polyerthylene conforming to SAE J-1128.
Connectors
Connectors shall be designed for use in the heavy-duty industry. Each connector shall feature a quick-disconnect
through a bayonet coupling, positive lock or bolt-together style. Packard/Delphi 280 Series or equivalent should be used
when possible. Connectors shall have the capability of being probed by a commercially available volt/ohm meter without
being damaged.
Sealed Connectors
Sealed connectors shall be required outside the cab environment. The connector seal shall not come off when removing
a connector from its mate. Cable seals shall be required to fix the size of the cable per manufacturer specifications.
Unsealed Connectors
Unsealed connectors can be used inside a cab environment only.
Cable Size
20 AWG
(.05 mm²)
18 AWG
(.08 mm²)
16 AWG
(1 mm²)
14 AWG
(2 mm²)
12 AWG
(3 mm²)
10 AWG
(5 mm²)
Current Capability
13 Amp
17 Amp
21 Amp
28 Amp
36 Amp
46 Amp
Cable Size
20 AWG
(.05 mm²)
18 AWG
(.08 mm²)
16 AWG
(1mm²)
14 AWG
(2mm²)
12 AWG
(3mm²)
10 AWG
(5mm²)
Conductor Strands
x size
7 x 28 AWG
16 x 30 AWG 19 x 29 AWG 19 x 27 AWG 19x 25 AWG
19 x 23 AWG
