This Harmony XB4, black head with key (key no.421E) for key selector switch has 2 positions, operates with stay-put mechanism with key withdrawal on left and right position. This head with key provides a versatile interface for controlling your machines. It is easily installed and replaced on compatible complete key selector switch units to provide a secure manner for authorized staff to switch between process or machine operating modes. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP66. It has a metal bezel, this makes it Ideal for applications requiring high impact and vibration resistance. It is designed to fit in a standard 22mm cutout, ensuring compatibility when installing in pre-existing machinery. Secure machine and system operation with a key, only available to authorized operators. Its wide range of operating temperatures from -40°C to 70°C allows versatility in usage of product.

• Provides dual positions for versatile operational control
• Suitable for high-pressure environments
• Operates in extreme temperatures ranging from -40 to +70°C
• Offers protection against water and dust ingress with IP66 and IP67 ratings
• Demonstrates mechanical durability exceeding one million cycles
• Allows key withdrawal in any position for ease of use

• Manages access control in machinery
• Essential for industrial control panels and automation systems
• Enables mechanical security for various systems
• Used in environments with stringent cleanliness standards
• Suitable for applications exposed to diverse temperature ranges

The unit is compatible with the 421E key type, ensuring usability across different settings.

Yes, it is designed to endure high-pressure washes up to 7000000Pa at 55°C.

With an IP66 rating, it is well-protected against environmental factors, making it appropriate for outdoor applications.

Installation is straightforward, requiring a cut-out of 22mm in the panel for optimal fit.

Routine checks for key functionality and monitoring the environment to remain within specified temperature limits will help maintain performance.