Battery Connection and Cable Sizing Chart
Connect your Inverter to your batteries using the following procedures:
Connect DC Wiring
Though your Inverter is a high-efficiency converter of electricity, its rated output capacity is
limited by the length and gauge of the cabling running from the battery to the unit. Use the
shortest length and largest diameter cabling (maximum 2/0 gauge) to fit your Inverter's DC
Input terminals. Shorter and heavier gauge cabling reduces DC voltage drop and allows
for maximum transfer of current. Your Inverter is capable of delivering peak wattage at up
to 200% of its rated continuous wattage output for brief periods of time. Heavier gauge
cabling should be used when continuously operating heavy draw equipment under these
conditions. Tighten your Inverter and battery terminals to approximately 3.5 Newton-
meters of torque to create an efficient connection and to prevent excessive heating at this
connection. Insufficient tightening of the terminals could void your warranty.
Connect Ground
Using a #8 AWG wire or larger directly connect the Main Ground Lug to the vehicle's chassis or earth ground. See the
Feature Identification section to locate the Main Ground Lug on your specific Inverter model. All installations must comply
with national and local codes and ordinances.
Connect Fuse
NEC (National Electrical Code) article 551 requires that you connect all of your Inverter positive DC Terminals directly to
a UL-listed fuse(s) and fuse block(s) within 18 inches of the battery. The fuse's rating must equal or exceed the Minimum
DC Fuse Rating listed in your Inverter's specifications. See diagrams below for proper fuse placement.
WARNING!
• Failure to properly ground your Inverter to a vehi-cle's chassis or earth ground may result in a lethal
electrical shock hazard.
• Never attempt to operate your Inverter by connecting it directly to output from an alternator rather
than a battery or battery bank.
• Observe proper polarity with all DC connections.
Minimum Recommended Cable Sizing Chart
Always loosely twist each pair of cables together before connecting them separately to the appropriate DC terminal on the
Inverter (positive or negative).
Watts
500
15 ft
700
11 ft
1000
N/R
2000
N/R
† N/R = Not Recommended. NOTE: Acceptable power is directly related to cable length (i.e. - the shorter the cable, the better the
performance)
†
6
4
25 ft
18 ft
12 ft
N/R
Wire Gauge
2 Conductors
2
39 ft
28 ft
20 ft
N/R
9
DC Connectors
0
00
62 ft
79 ft
44 ft
56 ft
31 ft
39 ft
16 ft
20 ft