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Electrical 2-3
Section 2: Electrical
Component Amps
Base
Miscellaneous Base Loads 16.5
Cooling
Cooling Fan (electric fan clutch) 2.2
Climate Control
A/C Clutch 3.5
A/C Fan-to-Face — High Speed 18.9
A/C Fan-to-Face — M/H Speed 13.4
Heater Fan-to-Foot — M/H Speed 12.5
Auxiliary Blower — M/H Speed 8.5
Auxiliary Blower — High Speed 9.5
Lighting
Exterior and Instrument Panel Lamps 7.5
(non-dimmable)
Headlamps — Low Beam 6.4
Headlamps — High Beam 7.1
(incremental)
Brake Lights (with CHMSL) 10.7
Heated Features
Heated Rear Windows 21.9
Other
Radio 3.0
Front Wiper 3.5
Rear Wiper 1.5
Typical Vehicle Load = 80 - 110 Amps
Typical Police Equipment
Loads for equipment commonly found on police vehicles are shown in the table below. Not all
equipment will be operating at the same time, so actual loads on the power supply system will
vary.
Component Amps
Communications Radio 4.0 (8.0 w/mic active)
Mobile Data Transmitter 3.0
Light Bar 28-43
Light Bar with All Internal 36-63
Accessory Lights Activated
Spot Lights (each) 7.8
Alley Lights (each) 1.0
Radar 0.8
Camcorder 0.5
2010 Expedition SSV Modifiers Guide, 07/2009