nVent Schroff, PLUG-IN UN REAR I/O 3U 8HP, Plug-In Unit Kit With IEL Handle for Rear I/O, Shielded, Black, 3 U, 4 HP, Plug-in unit, with IEL inserter/extractor black handle, 3 U, rear I/O assembly., U-shaped front panel for textile gasket, Suitable for insertion and extraction forces up to 700 N (per pair), Enable the installation of a microswitch, Enable the installation of coding pegs in accordance with IEC 60297-3-103/ IEEE 1101.10