The 3SE5242-0HK21-1AJ0 is a dependable limit switch from Siemens, part of the 3SE5 series. Designed with a Lever actuator and a durable IP66, IP67 housing, this switch provides 1NC/1NO contact configuration with IP66, IP67 environmental protection. Rated for 10000 mA at 400 V with Lever operation, designed for accurate position detection and end-of-travel switching in industrial machinery, conveyor systems, and automated production lines.