Multilevel installation terminal block, 2003 Series, Push-in CAGE CLAMP® Connecting conductors is quick and easy with this multilevel installation terminal block (item number 2003-6640/2003-6693). Conductors can only be connected to this multilevel installation terminal block if their strip length is between 10 and 12 mm . This product features conductor terminals and utilizes Push-in CAGE CLAMP®. Push-in CAGE CLAMP® connection technology is ideal for connecting all conductor types. It allows direct insertion of both solid and fine-stranded conductors with ferrules without needing to use any tools—all thanks to its pluggable design. Depending on the type of conductor, this multilevel installation terminal block is suitable for conductor cross sections ranging from 0.25 mm² to 4 mm².