Connectwell-Din-Rail-Spring-Clamp-4mm-Terminal-1-In-1-Out-Connectwell-TTECCSC4T-In-certain-applications-for-smaller-cross-section-range-of-wires-screwless-spring-terminal-blocks-are-available-In-spring-clamp-terminals-the-wire-is-held-against-the-current-bar-directly-by-a-pre-stressed-spring-clamp-The-spring-clamp-is-operated-by-using-a-screw-driver-to-provide-an-access-to-wire-through-the-opening-in-the-spring-clamp-The-wire-end-gets-clamped-on-to-the-current-bar-on-removal-of-the-scr