The XCSPA991 Emergency Stop Switches / E-Stop Switches SAFETY INTERLOCK by Schneider is a safety mechanism designed to shut down a machine in an emergency situation. This device utilizes 240VAC 10A power and features two safety contacts that must be actuated in order to complete the interlock circuit. The device also has a built-in contact indicator, allowing personnel to easily identify when there is an open/closed interlock circuit. This device is ideal for machine related applications, as well as for personnel-based applications in hazardous environments. It is UL-approved for use in the US and Canada.