When it comes to industrial control, security, and reliable switching, a robust and secure rotary switch is often essential. The 19mm and 22mm Key Operated Metal Rotary Switches are engineered to deliver exactly that—high durability, secure operation, and versatile performance in demanding environments. These panel-mounted locking switches are ideal for applications where safety, control, and unauthorized access prevention are critical.
Key Features & Security Benefits
The primary advantage of these switches is their key-operated mechanism. This design ensures that only authorized personnel can change the switch position, providing a vital layer of security for control panels, machinery, and sensitive equipment. The maintained action form means the switch stays in the selected position until deliberately changed, preventing accidental operation.
Built with a metal housing (available in brass with chromium plating or 304 stainless steel), these switches offer exceptional resistance to corrosion, physical impact, and environmental stressors. The IP65 waterproof rating guarantees protection against dust and water jets, making them suitable for use in harsh indoor or outdoor settings.
Technical Specifications at a Glance
Both the 19mm and 22mm models share a core set of high-performance specifications:
Switching Voltage: A wide range of 1.5V to 250V AC/DC.
Switched Current: Handles from 3mA up to 3A, suitable for both signal and power switching.
High-Temperature Tolerance: An impressive operating temperature range of -30°C to 480°C, perfect for high-heat environments.
Electrical Reliability:
Low Contact Resistance (≤50mΩ) for efficient power transfer.
High Insulation/Withstand Voltage (≥1000MΩ / 1900VAC min) for safety and durability.
Rated Heating Current: 5A at 24VDC, indicating robust performance under load.
Switch Combinations: Offered in versatile configurations like 1NO/1NC and 2NO/2NC.
Model Comparison: 19mm vs. 22mm
The main differentiating factor is the installation size, which caters to different panel design requirements:
19mm Model: Requires a panel cutout of 19.0mm – 19.25mm.
22mm Model: Requires a panel cutout of 22.0mm – 22.25mm.
Both maintain the same superior electrical and mechanical characteristics, giving you flexibility based on your panel space.
Ideal Applications
These key-operated rotary switches are indispensable across various industries:
Industrial Machinery: As master power switches or mode selectors on manufacturing equipment.
Security & Access Control Systems: To arm/disarm systems or control secure doors/gates.
Marine & Automotive: In control panels where vibration, moisture, and security are concerns.
Medical Equipment: For secure, dedicated function control.
Agricultural & HVAC Systems: Where durable and tamper-proof controls are needed.
Why Choose This Metal Rotary Switch?
Choosing between a standard rotary switch and this key-operated metal version comes down to security, safety, and longevity. The locking feature prevents tampering, the all-metal construction ensures a long service life, and the broad electrical ratings provide application versatility. Whether you’re upgrading existing equipment or designing a new control panel, this switch offers a reliable and secure solution.
Searching for a durable, secure rotary switch? The 19mm and 22mm Key Operated Metal Rotary Switches with panel mount locking are designed to meet rigorous industrial standards. Explore these switches for your next project that demands control, security, and resilience.
