Power cable requirements

A 2-core power cable is required. The gauge of the power cable will be determined by the system’s distance from the power supply, the total current draw of the system, and the vessel’s voltage.

Power cableThe following requirements need to be taken into account when selecting a power cable:

• The gauge of the power cable needs to be calculated based on the supply voltage, current draw of the system and connected devices, and the required length of cable.

• The Power supply module can accept cable up to 4 AWG (25 mm²) and some instances of 2 AWG (35 mm²).

• M6 (1/4 in) crimp rings should be crimped to the Power supply module end of the cables.

• The power supply end of the cable should be connected via the vessel’s main power distribution point or directly to a battery.

• An appropriately-rated inline thermal circuit breaker or fuse must be connected to the positive cable.

• There should be a continuous minimum voltage of 10.8 V dc on a 12 V system, and 21.6 V dc on a 24 V system at the end of the cable where it connects to the product. (Do not assume that a flat battery is at 0 V dc. Due to the discharge profile and internal chemistry of batteries, the current drops much faster than the voltage. A “fully flat” battery still shows a positive voltage of up to 11 V dc, even if it doesn’t have enough current to power your device.)