FEED-THROUGH, DIN Rail Terminal blocks. IEC60947-7-1, CE Approved, RoHS SMS "SKJ" and "STK" Series Universal Rail Mounting Standard Screw Clamp Feed through terminals are the most versatile terminals for wire-to-wire connection in control, automation, instrumentation and power distribution applications. A special design feature on the flexible foot enables easy mounting and dismounting from the DIN Rail with the help of a screwdriver. And "ST1" Series Spring Connect DIN rail terminal blocks offer a time saving alternative to the popular screw clamp connection. They can be mounted on 35 mm DIN rails. Insulated push-in type jumpers offer a quick and shock proof solution for most cross-connection applications. SKJ series Universal Screw Cage Terminal Blocks ( similar model with UK series in Phoenix) STK Screw Clamp Terminal Blocks (similar model with Weidmuller) ST1 series Spring Cage Terminal Blocks ( similar model SAK series with WAGO