The Rockwell Automation electromagnetic safety switch was designed to improve machine safety and help protect a work process from unplanned downtime.
The production process downtime can cause different problems such as defective products and high scrapping costs. For this reason, a reduction in machine downtime can be useful for improving productivity and reducing scrap.
Rockwell Automation 440G-EZ electromagnetic safety switch features
- Non-contact interlocking device with a locking function (Power to Lock – PTL)
- Process and machine protection per ISO EN 14119
- PLe, SIL 3 for interlocking applications
- 500 N holding force
- 50 ms response time
- Ease of installation and alignment: no tongue interlocks
- Mounting options: surface or flush mount
- IP67 enclosure
- GuardLink® compatibility
- M12 Micro QD 5 and 8 pin connection options
Allow access to potentially hazardous areas when the work area is truly safe! The 440G-EZ electromagnetic safety switch is a cost-effective interlock solution that combines a Power to Lock (PTL) magnetic locking function featuring a 500N holding force and with ±5 mm misalignment tolerance.
The 440G-EZ electromagnetic safety switch can be connected in series with other Cat 4, SIL 3 or PLe rated safety devices. The magnetic locking feature further aids in door stability and reduces misalignment and nuisance tripping.
To simplify installation, troubleshooting and maintenance, the switch offers on-board LED diagnostics indicating switch status as well as when the state of the output signal-switching devices (OSSD’s) are locked or unlocked..
How the switch 440G-EZ works
Action | RFID | Indicators | OSSD | Aux |
---|---|---|---|---|
Power up switch, no actuator present | Not in sensing range | Steady red indicator | OFF | OFF |
Add actuator | Within sensing range | Steady green indicator | ON | ON |
Apply lock command | Within sensing range | Steady green and yellow indicator | ON | ON |
Forcibly slide the actuator off the sensor, when locked | Not in sensing range | Steady red and yellow indicator | OFF | OFF |
LED YELLOW = lock supplied with voltage
LED GREEN = OSSDs ON – RFID present
LED RED = OSSDs OFF – RFID not present

Design to meet global standards, the 440G-EZ safety electromagnetic switch is mainly used in applications where safety is a priority.