Feedthrough terminal block, 231 Series, with 5 mm pin spacing Feedthrough terminal block (item number 231-603/023-000) simplifies electrical installations. Ensure that the strip lengths are between 8 and 9 mm when connecting conductors to feedthrough terminal block. Featuring one conductor terminal along with CAGE CLAMP®, this product outperforms the competition. Our reliable and maintenance-free CAGE CLAMP® connection makes it easy to connect all types of conductors without having to prepare the conductor. For example, you don't need to crimp ferrules. The item's dimensions are (30.2 x 19 x 19.1) mm (width x height x depth). Depending on the conductor type, feedthrough terminal block is designed for conductor cross sections ranging from 0.08 mm² to 2.5 mm². Tin is used for coating the contact surfaces. The feedthrough terminal block is designed for THT soldering.