Omron D4SL-NSK10-LK Guard Lock Safety-Door Switch is used in industrial safety systems to interlock and lock machine guard doors, commonly installed in robotic cells, packaging machines, CNC equipment, and automated production lines. With a 24 VDC rated supply, it features safety contacts integrated into a guard-lock mechanism, a key-operated actuator, and a solenoid guard lock for secure door retention. IP67 protection, terminal-block connection, and panel or machine mounting make it suitable for harsh industrial environments; it belongs to the Omron D4SL series and supports operation from -30°C to 70°C. Common replacements include Omron D4NL-1CFA-B and Omron D4NS-1AF.
