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Terminal blocks are normally used to connect a wire to a PCB; DIN rail terminal blocks connect the wire. Depending on the field of use, they are fitted to mounting rails or mounted directly. In practical use, spring terminal technology has also established itself alongside screw connection technology. For setting up a complete system of DIN rail terminal blocks, PTR differentiates between ten different product families. In addition to the various forms of feed-through terminal blocks, these include earth, neutral disconnect, fuse, test disconnect and transformer terminal blocks.

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