Two-pin fireman's switch, switches off DC strings in the PV system using the motorDC load-break switch with motor, 50 A@1000 V DC and 20 A@1500 V DC, 2 pins, rear mounting on DIN rail/with 2 screws, load-break switch + motor unit + status indicator Two DC pins = one input/MPPT = one string.
One motor can switch a maximum of ten DC poles = five strings.