Table 3‐1 Recommended DC Input Wire Size & Lengths
Cable length: Battery
to inverter(one way)
Less than 5'(1.5m)
Note: Never use a DC cable longer than 5' (1.5 m) with the Mobile Digital Power
Inverter. Appropriately sized cable can be bought at a welding supply house or a
marine supply store.
DC Panel Connections
This item not include DC cable
A.Connect black cable with negative pole of battery (A: black), connect another side
with negative pole of inverter (A: black)
B. Connect red cable with positive pole of battery (B: red), connect another side
with positive pole of inverter (B: red)
Note: Do not connect with wrong side, otherwise inverter may damage.
1. Make sure the inverter is off and no AC or DC is connected to the unit.
2. Remove the nuts and washers from the positive and negative DC terminals.
3. Attach the connectors that will secure the cables to the battery, to the
disconnect/battery selector switch, and the fuse block. The connectors you use
must create a permanent, low‐resistance connection. If crimp connectors are
required, MotoMaster recommends using approved and certified connectors, and
to use the tool recommended by the terminal manufacturer. Make sure no stray
wires protrude from the connector or terminal.
4. For each cable end that will be connected to the inverter, strip 1/2"(13 mm) to
3/4" (19 mm) of insulation from the cable. The amount stripped off will depend on
the terminals chosen.
Noted: This item not include DC cable
5. Thread a DC terminal cover over the positive and negative cables. The red cover
goes on the positive cable; the black cover on the negative cable.
6. To prevent sparking when making the connection, ensure the disconnect/battery
selector switch is off.
7. Install the lock washer and nut that are supplied with the inverter. Tighten the nut
to a torque of 9–10 ft‐lb (12.2–13.6 N‐m). Make the connection snug enough so
the ring terminal does not move around on the DC terminal, but do not over
tighten.
a
RV
(Recreational Vehicle)
Minimum Cable Size
No. 2 AWG
7
Minimum Battery Fuse Size
150 A DC