Accessories

The cable and protection you choose are as important as the battery and inverter they connect. Waveinverter stocks DC cable, lugs, connectors, fuses, circuit breakers and busbars sized for real off-grid loads. Under-sized cable is the hidden cause of poor performance in low-voltage DC systems: current-carrying capacity only tells you the cable will not overheat, but voltage drop is the real design constraint, and losing even a fraction of a volt over a run can stop equipment working. Every connection adds resistance, so fewer, better terminations beat many cheap ones.

How many amps can a cable carry? Roughly the maximum is 10 amps per mm2 of copper, so 16 mm2 carries 160 amps, 25 mm2 250, 50 mm2 500 and 95 mm2 950. That is the heating limit and it is not usually what stops you: on a DC run the voltage drop over the length is the restriction not the raw current carrying capacity, so check your run with our DC voltage drop calculator before you buy.