I have a 60V li-ion battery back with PCM board attached to it for protection. According to the PCM datasheet, under fault condition the PCM cuts off the load and thus isolates the battery bank. The battery bank has an array of solar panels connected to it through an mppt at all times. I wanted to isolate this source also from the battery pack during fault condition. Is there anyway other way I can achieve this except using a 60Vdc relay?