Through terminal block, 284 Series, CAGE CLAMP® This through terminal block (item number 284-104) is designed to connect conductors quickly and easily. Ensure that the strip lengths are between 12 and 13 mm when connecting conductors to this through terminal block. Whether for industrial or building applications, you can use our through terminal blocks to connect electrical conductors quickly and safely. We offer variants for both classic through-wiring and potential distribution. This product features conductor terminals and utilizes CAGE CLAMP®. Our tried-and-tested universal connection known as CAGE CLAMP® is the industry standard for connection technology and electrical interconnections. Depending on the conductor type, this through terminal block is designed for conductor cross sections ranging from 0.2 mm² to 10 mm². An operating tool is used to operate this through rail-mount terminal block.