Model: DS211 — 1pc blue round button switch with lock (selflocking), small key hole, 10MM Key benefits Secure control: the builtin locking mechanism prevents accidental or unauthorized activation, giving you reliable on/off control in one compact switch. Spacesaving design: the 10mm round form factor fits tight panel spaces and small enclosures where a fullsize lock switch would not. Simple, intuitive operation: selflocking (latching) action lets the button stay engaged until intentionally released, reducing the need for extra wiring or interlocks. What this switch does and why you need it The DS211 combines a pushbutton and a keyed lock in a single blue round unit. Its selflocking action provides latching on/off control while the small key hole adds an extra layer of operator control or security. Use it where you need a compact, tamperresistant switch for equipment control, access panels, or control boxes. Key attributes Model: DS211 Appearance: blue, round button Locking: builtin lock with small key hole Action: selflocking (latching) pushbutton Mounting size: 10MM (designed for 10mm panel cutout) Quantity: 1pc Practical advantages Compact and easy to integrate into existing control panels or custom enclosures. Selflocking mechanism reduces false triggers and simplifies control logic by keeping the switch state until deliberately changed. Keyed lock provides a simple physical security measure for shared or public equipment. Typical applications Industrial and workshop control panels — use for start/stop, enable/disable functions where a compact, lockable control is required. Security or access panels — restrict operation to authorized users with the small key lock. DIY electronics and custom enclosures — ideal for hobby projects and compact devices that need a secure latching pushbutton in a 10mm panel hole. Installation notes Designed for a 10MM panel cutout. Verify cutout size before installation. Intended as a compact lockable pushbutton solution; check electrical compatibility and wiring requirements with your system before integrating. includes One (1) DS211 blue round button switch with lock, selflocking, small key hole, 10MM. If you need a compact, lockable latching pushbutton for tight panels or secure controls, the DS211 offers an easytoinstall, spacesaving option.