440J Interlocks
Allen-Bradley 440J Tongue Interlock Switches
Allen-Bradley 440J series interlock switches are compact safety devices designed to monitor guard doors and movable machine barriers. These tongue-actuated interlocks are commonly used on smaller machines or installations where space is limited and reliable door monitoring is required.
The 440J interlock series is widely used in packaging machines, food processing equipment, assembly stations, and other automated machinery where operators must regularly access guarded areas. These switches provide dependable guard position monitoring while maintaining a compact footprint.
This category includes refurbished Allen-Bradley 440J interlock switches used for maintenance replacement and spare inventory. Using the same interlock series simplifies installation and maintains compatibility with existing machine guard hardware.
Common 440J applications
- Compact machine guard monitoring
- Packaging equipment safety doors
- Assembly workstation guarding
- Food and beverage machinery safety
- OEM machine safety systems