The Deca SEP12 DIN rail terminal block end plate is made to be used with the Deca SDU16 spring clamp 51 x 82.5mm DIN rail terminal blocks. End plates are mounted at the end of a row of terminal blocks to separate them, either from a different size terminal block or from the end bracket. Note: Image is for reference, actual part may differ

Deca SEP12 DIN Rail Terminal Block End Plate, For SDU16