
Do I need a PV DC isolator switch for a single 200W solar panel
There are dedicated solar panel isolators but they are expensive and hard to justify on a single-panel setup. I use a special DC breaker which is double pole, it''s rated to break modest DC currents at solar panel voltages and has 2 linked breakers, one each for panel + and -, they are linked in opposite directions so that the current flow direction is correct for each







































