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Calculating Size of DC Input Cables for XPower 1750 Plus
Refer to Table 3-3 to plan the DC cabling:
• Keep all cables as short as possible, and ensure that each cable
between the inverter and the battery is no longer than 6 feet (1.8 m).
• Do not use aluminum cable. It has about 1/3 more resistance than
copper cable of the same size, and it is difficult to make good, low-
resistance connections to aluminum wire.
• Xantrex recommends that you use oil resistant cable.
Table 3-3 Recommended DC Input Wire Sizes & Lengths: XPower
1750 Plus
RV
1
(Recreational Vehicle) and Marine
2
1. Based on US National Electrical Code NFPA70, Article 551 and Table 310-
17, 90C cables located outside of engine spaces.
2. Based on ABYC (American Boat and Yacht Council) Recommended Practice
E-9, Table IV, 75C cables located outside of engine spaces, maximum 3% volt-
age drop.
Cable length:
Battery to Inverter
(one way) Minimum Cable Size
Maximum Battery
Fuse Size
2 feet (0.6 m) No. 1/0 AWG 250 Adc
6 feet (1.8 m) No. 1/0 AWG 250 Adc
Note: Never use a cable longer than 6 feet (1.8 m) with the XPower 1750 Plus.
Appropriate size cable can be bought at a welding supply house or a marine
supply store.