K&N Single String DC Switch Disconnector 25A 450V - 18A 800V

The KG20 T104D is a single-PV-string DC switch-disconnector in an insulated IP66/67 enclosure, built to EN 60947-3 and IEC 60364-7-712 for solar photovoltaic disconnection. It is dual-rated: 25A at 450V DC, falling to 18A at 800V DC and 11A at 920V DC, so the correct rating must be checked against the string's actual voltage. The 2-pole switching block gives clean isolation of both DC conductors for maintenance, with an OFF-position lockable black handle and a lid interlocked so it cannot be opened while the switch is on. Terminals take up to 6mm² solid or stranded cable, or 4mm² flexible, tightened to 1.25Nm. It suits use as a PV array or combiner-box isolator ahead of a string inverter.