The XCSB502 with SAFETY INTERLOCK SW from Schneider is a 120VAC Double Pole Single Throw (DPST/SPST) safety interlock switch. This unit is designed for mounting on panel doors and machine guards to shut off the power supply when a panel or guard is opened in a facility. Its contacts are designed with safety lock technology to make sure that it is closed correctly. The XCSB502 also has an adjustable opening angle and shunt barriers that guarantee reliable operation. This switch is also UL approved and certified.