Allen Bradley 440F-EFNNN04220 Safedge Factory-Assembled System

Applications

The Allen Bradley 440F-EFNNN04220 Safedge Factory-Assembled System is designed for machine safety applications where sensitive edge protection is required along the boundary of a hazardous area. It can be installed on machinery, access points, doors, panels, and other locations where contact with a moving or closing component needs to initiate a safety response.

The factory-assembled configuration provides a prepared Safedge system section, helping simplify installation where a predefined sensing length is required.

Typical applications include:

• Machine guarding
• Automated production equipment
• Industrial machinery
• Access and protective doors
• Moving machine sections
• Conveyor and material-handling equipment
• Packaging machinery
• Manufacturing equipment
• Robotic work cells
• Industrial safety systems 

Advantages

The 440F-EFNNN04220 provides an edge-sensing safety solution for applications where conventional switches may not adequately protect the full contact edge. Its factory-assembled configuration can simplify system preparation and installation.

Key advantages include:

• Safedge pressure-sensitive safety protection
• Factory-assembled configuration
• Suitable for machine guarding applications
• Designed for edge and contact protection
• Suitable for automated industrial equipment
• 4220 mm specified sensing length
• Compact safety-system configuration
• Practical for machine builders and system integrators
• Helps provide protection around moving or closing machine sections
• 1.5 kg weight for manageable installation and handling 

Technical FAQs

1. What is the Allen Bradley 440F-EFNNN04220?
The 440F-EFNNN04220 is an Allen Bradley Safedge Factory-Assembled System designed for pressure-sensitive machine safety and edge protection applications.

2. What is the purpose of a Safedge safety system?
A Safedge system is used to detect pressure or contact along a protected edge and initiate an appropriate safety response when the sensing edge is actuated.

3. Where can the 440F-EFNNN04220 be used?
It can be considered for machine guarding, moving equipment, protective doors, automated machinery, packaging equipment, and other applications where edge protection is required.

4. What does factory-assembled mean for this product?
The system is supplied as an assembled configuration rather than requiring the complete sensing assembly to be fabricated from individual components at the installation site.

5. What is the specified length of this model?
The specified length of the 440F-EFNNN04220 is 4220 mm.

6. What should be checked before installation?
Verify the mounting surface, sensing-edge position, mechanical movement, wiring, safety control interface, and required safety stopping distance for the machine.

7. What should happen when the sensing edge is actuated?
The safety system should detect the actuation and initiate the machine's designed safety response through the connected safety control circuit.

8. Can the system be connected to a safety controller or safety relay?
It can be incorporated into an appropriately designed machine-safety circuit. The complete safety system should be designed and validated according to the applicable machinery safety requirements.

9. What should be checked if the safety edge does not respond?
Inspect the sensing edge, mechanical mounting, wiring, connections, safety controller or relay, and associated circuit. The machine should remain out of service until the safety function has been verified.

10. Should the Safedge system be function-tested after installation?
Yes. The sensing edge and complete safety circuit should be function-tested during commissioning and periodically according to the machine's safety and maintenance procedures.