{"title":"Combiners, Breakers and Fuses","description":"\u003cp\u003eProtection is chosen on three ratings, and the amps are only one of them. Size the amp rating to the wire it protects. Check the DC voltage rating against your string or bank, since a DC rating is separate from the AC one. Then check the interrupt rating against the current your battery bank can deliver in a short circuit. Combiner boxes join strings before the controller; transition boxes join rooftop wire to the run below. Not sure of a rating? That's one for your electrician.\u003c\/p\u003e","products":[{"product_id":"midnite-solar-combiner-box","title":"MidNite Solar MNPV Array Combiner Box, 3 to 12 Circuit","description":"\u003cp\u003eMidNite Solar MNPV combiner boxes bring several PV strings together into one output for your charge controller or inverter. 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