SNK Series ZS4 push-in terminal block

The SNK series from ABB Entrelec is a family of DIN rail mounted terminal blocks for connecting control and power wiring in panels. The ZS4 designation refers to push-in spring connection in a 4 mm square cross section class, which allows solid or ferruled conductors to be inserted without tools and held by a stainless spring. The blocks are made from flame retardant polyamide, snap onto a standard TS35 rail and are accompanied by an extensive range of end plates, jumpers, markers and test accessories. The push-in method shortens wiring time and is vibration resistant, which is useful in machine building and moving equipment.