Designing Your Installation

Calculating Size of DC Input Cables for XPower 1200 Plus

Refer to Table 3-1to plan the DC input cabling for your particular application:

Keep all cables as short as possible, and ensure that each cable between the inverter and the battery is no longer than 5 feet (1.5 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 3-1 Recommended DC Input Wire Sizes & Lengths: XPower 1200 Plus

 

RV1(Recreational Vehicle) and Marine2
Cable length:

 

 

Battery to inverter

 

Maximum Battery
(one way)Minimum Cable SizeFuse Size

 

 

 

2 feet (0.6 m)

No. 2 AWG

150 Adc

 

 

 

4 feet (1.2 m)

No. 2 AWG

150 Adc

 

 

 

5 feet (1.5 m)

No. 2 AWG

150 Adc

Note: Never use a cable longer than 5 feet (1.5 m) with the XPower 1200 Plus. Appropriately sized cable can be bought at a welding supply house or a marine supply store.

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.

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