The DS211 yellow round button switch with lock is a compact selflocking pushbutton designed for control panels that require deliberate operation. It features a small key hole for secure locking and a 10 mm diameter, making it easy to identify and use in tight spaces. The bright yellow color enhances visibility in busy control environments. Key benefits Prevents accidental activation with a lockable, selflocking action Enables controlled operation; the key is required to lock or unlock the switch visibility yellow button aids quick panel identification Compact 10 mm diameter suits tight panel layouts while providing reliable actuation Key attributes Model: DS211 Color: Yellow Shape: Round pushbutton Diameter: 10 mm Locking: Selflocking with small key hole Package: 1 piece Applications and use cases Lockable start/stop control on industrial machinery during maintenance to prevent unintended restart Security control on production lines where only authorized personnel can energize a circuit Maintenance or test mode activation where a key is required to reengage the system after a shutdown