XB5 Contact Block 1NC The XB5 Contact Block 1NC is a replacement contact block designed for compatible control switches, push buttons and panel-mounted electrical controls. With a single normally closed contact arrangement, it is suitable for applications where a closed circuit is required until the switch is operated. Contact blocks are important parts of control panels and automation systems, as they provide the switching action behind the visible button, selector or control head. If the original block becomes worn, damaged or unreliable, the connected equipment may fail to respond correctly, operate intermittently or stop functioning as intended. Replacing it with the XB5 Contact Block 1NC helps restore dependable switching and supports reliable control operation. This contact block is useful for dairy farms, engineers and service teams carrying out repairs, fault finding or planned maintenance on compatible control panels, wash systems, pump controls and automation equipment. The 1NC configuration may be used where the circuit needs to open when activated, depending on the control design. Keeping suitable contact blocks available can help reduce downtime when panel faults are t
