Document Number:
MAN – FD320CV-X
Rev:
A
Revision Date:
09/23/2019
Page 9 of 20
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All Rights Reserved.
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Power and Ground Wiring
The rated current of the equipment and associated voltage drop should be taken into
consideration when selecting wire gauge. The following example is based on an
installation with a 28VDC power system, 1.5-amp equipment load and a total of 50 feet of
wire between the circuit breaker, monitor and ground.
Example:
22awg wire has 16.2Ω per 1000 feet, this equates to .81Ω for 50 feet. 1.5 Amp
of current on .81Ω will drop 1.22 Volts.
Resistance of Wire Type M22759/16-**
(** = Gauge)
Gauge (AWG)
Ω / 1000’
24
26.20
22
16.20
20
9.88
16
4.81
12
2.02
10
1.26
8
.701
Also, use short heavy gauge wire and a clean tight connection for ground. It is the installer's
responsibility to understand the product's requirements in order to install the product in
compliance with industry standards and safety.
