This contact block enables quick and simple configuration and replacement of your push buttons and selection switches. With the aid of a clip assembly, it is quickly fitted and changed on XB4 or XB5 full push-button units and selection switches. It is connected to control circuits using straightforward screw-clamp connections. Its IP20 protection index shields users from unintentional contact with active circuits. A 6A load with a 1 million cycle high endurance provides for reduced maintenance and installation harm. Its color palette is obvious. The device is suited for installation on high impact machines thanks to vibration resistant screw clamp connection terminals that guarantee great vibration resistance.