7
Cable Gauges
When connecting the inverter to a battery bank use the thickest stranded insulated copper
wire available, in the shortest practical length. Recommended cable gauges are as follows:
WARNING:
DANGER OF BATTERY EXPLOSION – INSTALL A FUSE
Battery banks can deliver very high levels of current that can vaporize metal, start fires and
cause explosions. Enerwatt recommends installing one ANL type fuse and fuse holder close to
the positive battery bank terminal. This fuse protects the batteries from accidental DC cable
shorts, which can cause batteries to explode. ANL fuses and fuse holders are available at most
marine supply stores.
CAUTIONS
:
•
Loose connections can result in a severe decrease in voltage that can cause damage to
cables and insulation.
•
Failure to make correct polarity (positive, negative) connection between the inverter
and the battery bank can result in blowing fuses in the inverter that may permanently
damage the inverter. Enerwatt Warranty does not cover damage caused by reversed
polarity.
•
Making the connection to the positive terminal may cause a spark as a result of current
flowing to charge capacitors within the inverter. This is a normal occurrence.
•
Because of the possibility of sparking, however, it is extremely important that both the
inverter and the 12 volt battery be positioned far from any possible source of flammable
fumes or gases. Failure to heed this warning could result in fire or explosion.
•
Operating the inverter without correctly grounding the unit may result in electrical shock.
Mounting the Inverter
Your Enerwatt Inverter should not be mounted under the hood of a vehicle.
If installing in a vehicle, choose a dry, cool, ventilated area closest to the battery as practical.
Be-fore drilling any mounting holes, make sure that there are no wires, fuel lines, or tanks
directly behind the surface to be drilled. To mount the inverter:
1. Inverter must be OFF.
2. The inverter should be mounted horizontally.
3. Position the inverter against the mounting surface and mark locations of the mounting
screw openings.
4. Remove the inverter and drill four mounting holes.
5. Fasten the inverter to the mounting surface using corrosion-resistant fasteners sized #10
or larger.
Model
EW-1100
4AWG (3 ft. included W/ 110A inline ANL Fuse)
EW-2000
2AWG (3 ft. included W/ 200A inline ANL Fuse)
EW-3000
0AWG (3 ft. included W/ 300A inline ANL Fuse)
EW-4000
0AWG (3 ft. included W/ 400A inline ANL Fuse)
Recommended Gauges
