These are screw-on bridge type screw blocks for universal screw DIN rail terminals, suitable for different models: UK-2.5B, UK5-TWIN, UDK4, UKKB5, UKK5, DIKD1.5.
Guide rails can be used to install circuit breakers, contactors, PLCs, relays, terminals and other electrical appliances.
Note: Sold in rows of 10 screws as shown in the image!!
