1. 3SU1051-6AA00-0AA0 is an emergency stop switch manufactured by Siemens.
2. It has a red mushroom shaped head and is operated using momentary contact.
3. This switch features double-circuit monitoring, N/C and N/O contacts and has an IP65 degree of protection. It is designed to be installed on machines in a non-flush manner, with either round or rectangular bezels. It is also VDE, cULus and cCSAus certified.