Disconnect terminal block, 769 Series, gray Easy electrical installations are guaranteed with this disconnect terminal block (item number 769-243). Conductors should only be connected to this disconnect terminal block if their strip length is between 8 and 9 mm . Pluggable rail-mount terminal blocks are hugely popular in switchgear and control systems, for example, in railroad technology. They combine the best of rail-mount terminal blocks and connectors to create the perfect solution. Variable wiring systems make pre-assembly easy, which saves both time and money in production, installation, operation, and maintenance. The disconnect terminal block also serves as a shield termination. This product features conductor terminals and utilizes CAGE CLAMP®. Our reliable and maintenance-free CAGE CLAMP® connection makes it easy to connect all conductor types without having to prepare the conductor. For example, you don't need to crimp ferrules. This disconnect terminal block is suitable for conductor cross sections ranging from 0.08 mm² to 4 mm². An operating tool is used to operate this pluggable rail-mount terminal block.