This XCSD Compact Safety Limit Switch has a steel roller lever, a Zamak body and head and a 1/2" NPT cable gland entry. It has 1 normally open and 2 normally closed snap action contacts. Its B10D reliability data is 50 000 000. It has IK06 impact resistance and 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.