ADO System entrelec® Terminal Blocks has overyears’ experience in screw clamp connections. Spring connection 1SNLR Active. Screw clamp. Power distribution. Terminal Blocks. TE Internal The ATEX terminal block range provides terminal blocks in the three main technologies: screw clamp, spring clamp and ADO system® in feed through (grey), neutral (blue) and Description Color Type Catalog number Packing pieces Weightpc (g)End Stops Screw;mm in Dark Grey BAMSNKRScrewless; Terminal Blocks Current an