The 1137057 is a string combiner box designed for photovoltaic systems operating up to 1000 V DC. It is suitable for connecting two sets of two strings and features surge protection (type 2) and a DC fire service switch disconnector. The device includes a basic terminal block with feed-in and disconnect knife in the branches, which can be disconnected using a screwdriver. It has a current rating of 20 A, a voltage rating of 400 V, and utilizes push-in connection methods. The product is equipped with 7 positions for connections, making it suitable for efficient solar power system configurations.
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