Ground terminal block, 769 Series, operating tool Our ground terminal block (item number 769-257) ensures effortless electrical installations. Conductors can only be connected to this ground terminal block if their strip length is between 8 and 9 mm . Pluggable rail-mount terminal blocks are primarily found in switchgear units and control systems, most notably in railroad technology. These innovative systems combine the benefits of rail-mount terminal blocks and connectors for a flexible and reliable wiring system. You also have the option of pre-assembling installations, which not only makes production but also installation, operation, and maintenance more efficient and cost-effective. Featuring conductor terminals along with CAGE CLAMP®, this product is highly versatile. Our CAGE CLAMP® connection offers a secure 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. Depending on the type of conductor, this ground terminal block is suitable for conductor cross sections ranging from 0.08 mm² to 4 mm². This pluggable rail-mount terminal block is operated with an operating tool.