Product Description
Allen-Bradley 440H-R03078
The Allen-Bradley 440H-R03078 is a SensaGuard™ RFID non-contact interlock switch, engineered to provide the highest level of safety and reliability for machine guarding applications. It utilizes advanced radio-frequency identification technology for secure communication between the sensor and actuator, offering excellent tamper resistance. This switch is designed for monitoring the position of sliding, hinge, or lift-off guards. With its PLe safety rating, dual OSSD outputs, and clear LED diagnostics for power, status, and faults, the 440H-R03078 is an ideal solution for enhancing personnel safety in demanding industrial environments.
Technical Specifications:
- Product Type: RFID Non-Contact Interlock Switch
- Series: SensaGuard 440H
- Housing: Rectangular, Plastic
- Sensing Distance (Assured Make): 10 mm
- Safety Outputs: 2 x OSSD (PNP), 0.2A max
- Connection: 8-pin M12 Quick Disconnect (QD)
- Safety Rating: PLe, Cat 4 (ISO 13849-1); SIL CL3 (IEC 62061)

Allen-Bradley 440H-R03078
Buy the Allen-Bradley 440H-R03078 SensaGuard RFID non-contact safety switch. This PLe/SIL3 rated switch features a 10mm sensing range and an 8-pin M12 connector for reliable machine guarding.






