This XCSLF Key Operated Safety Switch for guard doors with locking by solenoid has an adjustable turret head and a robust red coated slim Zamak body with 3 x 1/2" NPT cable gland entries, allowing for flexible installation. It has 1 normally open and 2 normally closed break-before-make (slow break) main contacts actuated by key, contact states given when the key is inserted. And it has 1 normally open and 2 normally closed auxiliary contacts actuated by the solenoid, contact states given when the solenoid is not powered. Its B10D reliability data is 5 500 000. Its IP66 / IP67 degree of protection makes it ideal for heavy duty use in harsh conditions. It also complies with EN/ISO 14119, EN/IEC 60204-1, EN/IEC 60947-5-1, UL 508, CSA C22.2 No 14 standards. When associated and correctly connected to an appropriate safety control unit, it conforms to Category 4, performance level PL e, SIL 3 as described in EN/ISO 13849-1, EN/IEC 61508.