VANNER
Incorporated
Owner’s Manual
VTS Series 1500Watt 11 True Sine Wave Inverter/AC transfer Switch
6. DC Wire and Fuse Sizes:
Use the following DC cable and inline fuse sizes. DC cables should be as short as possible (ideally less than 10
feet, never exceeding 20') and large enough to handle the required current in accordance with the electrical codes
or regulations applicable to the installation. DC cables that are too small or too long will cause DC voltage drop
which will result in deteriorated inverter performance such as poor surge capability and frequent low-input voltage
warnings and shutdowns.
Model Number
VTS12-1500
VTS24-1500
Cable Size
Distance from battery to inverter in feet
(Length of cable needed is 2 times the distance.)
6 ga
NR
8.0
4 ga
NR
16.0
2 ga
11.0
20’
1 ga
14.0
20’
1/0
18.5
20’
Fuse (Amps)
Vanner part number
200
013914
100
013910
Fuse Holder
Vanner part number 011876
6.1. DC Connections:
When ready to connect DC cables, connect battery positive (+) to inverter positive then connect battery negative (-)
to inverter negative.
Be aware, there will be a large spark when the last DC connection is made. This is
normal.
Never connect inverter positive to battery negative.
Be very careful to NEVER connect DC
terminals to the inverter backwards. Reverse polarity connection may cause permanent damage to the inverter.
Torque the DC terminal bolts to 9 -10 ft-lbs.
WARNING:
Loose DC connections will overheat and cause a fire
WARNING:
To protect the DC cables, and to protect the inverter if positive and negative are reversed, a DC fuse
must be installed in the positive inverter cable within 18” of the battery. Failure to place a fuse in the inverter positive
cable will void the warranty.
