Through terminal block, 284 Series, CAGE CLAMP® This through terminal block (item number 284-681) is designed for easy and secure connections. Ensure that the strip lengths are between 12 and 13 mm when connecting conductors to this through terminal block. Whether for use in industry or building installations, our rail-mount through terminal blocks allow you to quickly and securely connect electrical conductors. They’re perfect for either classic through-wiring or distributing potential, depending on the variant. This product incorporates conductor terminals and utilizes CAGE CLAMP®. Our renowned universal connection known as CAGE CLAMP® leads the way when it comes to connection technology and electrical interconnections. Depending on the conductor type, this through terminal block is suitable 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.