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Connecting the DC Equipment Ground
WARNING
ELECTRIC SHOCK HAZARD
Never operate the Freedom EX 4000 without properly connecting
the equipment ground. A shock and energy hazard could result
from improper grounding.
Failure to follow these instructions can result in death, serious
injury, or equipment damage.
The Freedom EX 4000 has a DC ground lug on the side of the
unit as shown in Connecting the DC Equipment Ground. Follow
the guidelines in Connecting the DC Equipment Ground to
connect the inverter/charger/converter's chassis to the ground.
Figure 4 DC Panel Connections
1
DC grounding lug
Grounding Locations
You must connect the equipment DC ground lug to a grounding
point—usually the vehicle's chassis or DC negative bus
ground—using recommended copper wire size (if insulated then
green insulation with or without one or more yellow stripes) or
larger.
Make sure to tighten the bolt on the DC ground lug to a torque of
23 in-lb (2.6 N-m) of force. Apply an anti-corrosion compound to
the copper wire prior to connecting to the DC ground lug.
For recommended equipment ground cable size, see below.
Table 3 Equipment DC ground cable size
Minimum equipment ground cable size
Application
(Stranded copper cable is required)
Recreational
No. 8 AWG
a
Vehicle
b
Marine
No. 3 AWG
NOTE: There are no restrictions on length for the equipment
ground cable but try to make it as short as practical to a secure
chassis connection. In general, the equipment ground cable size
must not be smaller than one AWG size than the supply cable.
a
Based on US National Electrical Code NFPA70, Article 551, par. 551-20c and ANSI/RVIA LV, § 2-5.1.
b
Based on ABYC E-11 § 11.16 2
975-0998-01-01
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Basic Installation Procedures
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