Double potential terminal block, 279 Series, operating tool This double potential terminal block (item number 279-826) simplifies electrical installations. Strip lengths must be between 8 and 9 mm when connecting conductors to this double potential terminal block. Our double potential terminal blocks are perfect for connecting two different potentials in a very small space, with each side of the terminal block allowing separate through-wiring. This intelligent design ensures the potentials are perfectly insulated and separated. This product features conductor terminals and utilizes CAGE CLAMP®. Our reliable 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. Dimensions: (4 x 73 x 31.5) mm (width x height x depth). Depending on the type of conductor, this double potential terminal block is designed for conductor cross sections ranging from 0.08 mm² to 1.5 mm². An operating tool is used to operate this through rail-mount terminal block.