Multilevel installation terminal block, 2203 Series, Push-in CAGE CLAMP® Our multilevel installation terminal block (item number 2203-6660/2203-6693) is designed for seamless electrical installations. Ensure that the strip lengths are between 10 and 12 mm when connecting conductors to this multilevel installation terminal block. This product incorporates conductor terminals and utilizes Push-in CAGE CLAMP®. Push-in CAGE CLAMP® connection technology is ideal for connecting all conductor types. Solid and fine-stranded conductors with ferrules can be inserted without the need for tools—all thanks to its pluggable design. Depending on the type of conductor, this multilevel installation terminal block is designed for conductor cross sections ranging from 0.25 mm² to 4 mm².