Through terminal block, 869 Series, operating tool Our through terminal block (item number 869-210) ensures effortless electrical installations. Conductors can only be connected to this through terminal block if their strip length is between 6 and 7 mm . Our mini rail-mount terminal blocks are the perfect choice when space is limited. A large selection of mounting and actuation variants means you can find a suitable mini terminal block for every purpose. This also means you can adapt the terminal blocks to your unique requirements. Featuring conductor terminals along with CAGE CLAMP®, this connector is highly versatile. Our CAGE CLAMP® connection provides a convenient and maintenance-free way to connect all types of conductors. You do not need to prepare the conductor in any way, such as crimping ferrules. The dimensions are (64.5 x 27.6 x 33.4) mm (width x height x depth). This through terminal block is suitable for conductor cross sections ranging from 0.08 mm² to 2.5 mm². An operating tool is used to operate this mini rail-mount terminal block.