Disconnect terminal block, 769 Series, gray Connecting conductors is quick and easy with this disconnect terminal block (item number 769-212). Ensure that the strip lengths are between 8 and 9 mm when connecting conductors to this disconnect terminal block. Pluggable rail-mount terminal blocks are mainly used in switchgear units and control systems (e.g., in railroad technology). They are essentially a combination of rail-mount terminal blocks and pluggable connectors. You can also pre-assemble installations thanks to the variable wiring system. This saves both time and money during manufacture, installation, operation, and maintenance. Featuring conductor terminals along with CAGE CLAMP®, this product is highly versatile. Our highly-rated and maintenance-free CAGE CLAMP® connection makes it easy to connect all types of conductors without having to prepare the conductor. For example, you don't need to crimp ferrules. Depending on the type of conductor, this disconnect terminal block is ideal for conductor cross sections ranging from 0.08 mm² to 4 mm². This pluggable rail-mount terminal block is operated with an operating tool.