Allen-Bradley 440N SensaGuard Non-contact Interlock Switches

Overview

The Allen-Bradley 440N SensaGuard™ Non-contact Interlock Switches represent the latest generation of machine safety technology, combining advanced RFID coding with inductive sensing for secure, reliable, and maintenance-friendly safety interlocking. These switches are designed to protect operators and prevent unauthorized access to hazardous machine areas without direct mechanical contact—reducing wear and extending system life.

SensaGuard switches are commonly used in applications where hygiene, durability, and tamper-resistance are critical, such as food and beverage processing, pharmaceutical manufacturing, packaging lines, and automated machinery.

For more details on similar safety solutions, visit our Allen-Bradley Guardmaster 440N Safety Interlock Switches page.

 Explore the complete range of automation products in our Allen-Bradley main category.

Key Features & Benefits

• RFID Technology for Enhanced Security – Ensures unique actuator coding to prevent tampering and unauthorized bypassing.

• Inductive Technology for Reliable Detection – Non-contact sensing minimizes mechanical wear and eliminates alignment issues.

• Flexible Mounting Options – Multiple actuator shapes and mounting positions adapt to different door and guard designs.

• High Safety Ratings – Meets PLe per ISO 13849-1 and SIL 3 per IEC 61508.

• Rugged and Sealed Design – IP69K-rated for washdown environments, perfect for hygienic industries.

• Long Service Life – Non-contact operation reduces maintenance costs and downtime.

Applications

• Guard doors on packaging machinery

• Access gates in automated assembly lines

• Food processing equipment with washdown requirements

• Pharmaceutical machinery requiring high hygiene standards

• Robotic cells and automated production stations

Why Choose the Allen-Bradley 440N SensaGuard?

By combining RFID coding and inductive sensing, the 440N SensaGuard delivers unmatched safety integrity, flexibility in design, and long-term reliability. Whether you need to secure a simple guard door or protect multiple access points in a high-speed automated environment, these switches provide a proven, certified solution.

Compliance

• Experience: Backed by Rockwell Automation’s decades of expertise in machine safety.

• Expertise: Designed to comply with international safety standards and tested for industrial durability.

• Authoritativeness: Recognized globally as a trusted safety solution for industrial automation.

• Trustworthiness: Built to last, certified for global safety compliance, and supported by worldwide service.

Frequently Asked Questions (FAQ)

Q1: What makes the SensaGuard different from traditional interlock switches?
A: SensaGuard uses RFID and inductive technology to allow non-contact, tamper-resistant operation, increasing reliability and safety.

Q2: Can the SensaGuard be used in washdown environments?
A: Yes. The IP69K rating makes it suitable for harsh cleaning processes in food, beverage, and pharmaceutical facilities.

Q3: Is it possible to code the switch to accept only one specific actuator?
A: Yes. You can choose from low, high, or unique RFID coding levels for maximum security.

Q4: Does it comply with international safety standards?
A: Absolutely. It meets PLe per ISO 13849-1 and SIL 3 per IEC 61508 standards.

Conclusion

The Allen-Bradley 440N SensaGuard Non-contact Interlock Switch is an advanced, durable, and hygienic solution for industrial safety applications. With RFID and inductive technology, it ensures secure, maintenance-free operation while meeting the highest safety standards.

For related products, visit:

• Allen-Bradley Guardmaster 440N Safety Interlock Switches

• Allen-Bradley main category.