Multilevel installation terminal block, 2203 Series, gray Our multilevel installation terminal block (item number 2203-6642) simplifies electrical installations. Strip lengths must be between 10 and 12 mm when connecting conductors to this multilevel installation terminal block. Featuring conductor terminals along with Push-in CAGE CLAMP®, this product outperforms the competition. Our Push-in CAGE CLAMP® is a universal, maintenance-free connection solution for all conductor types, offering a key advantage: It allows direct insertion of both solid and fine-stranded conductors with ferrules without needing tools. No preparation is required; for example, crimping the conductor's ferrule is not necessary. 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.