Double potential terminal block, 280 Series, CAGE CLAMP® Our double potential terminal block (item number 280-995) ensures effortless electrical installations. Conductors can only be connected to this double potential terminal block if their strip length is between 8 and 9 mm . WAGO's double potential terminal blocks are a space-saving solution that boasts two current bars with different potentials on one level. Each side of the terminal block allows for separate through-wiring of one potential. The compact design saves space without sacrificing functionality. Featuring conductor terminals along with CAGE CLAMP®, this product outperforms the competition. Our CAGE CLAMP® connection provides 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 conductor type, this double potential terminal block is suitable for conductor cross sections ranging from 0.08 mm² to 2.5 mm². This through rail-mount terminal block is operated with an operating tool.