Spring Loaded Terminal (Feedthrough and Test) Screw compression clamp terminals incorporating a spring under each wire clamp, giving high vibration resistance and also meets requirements of ESI 50//18. Each termination will accept two hook bladed crimp terminals, one locating on the current bar behind the screw clamp, the other on the underside of the clamp. For use with Top Hat DIN rails,2 and 4 pole sliding bridges are available for use with current transformer test terminal (stock no. 383-1403)