Solar DC circuit breaker 1P 63A BR2472
In addition to fuses, the protection of photovoltaic modules is provided by string circuit-breakers. They protect photovoltaic modules from fault currents. For example, in large systems, they prevent regeneration from intact modules to modules with a short-circuit. Their advantage over fuses is that they are immediately ready for use after a trip and when the cause of the trip has been remedied.