Overview
The Allen-Bradley 440G-MT47163 is a positive-mode, tongue-operated guard locking interlock switch that locks a machine guard closed until power is isolated while the guard is open. The guard may only be opened when a signal is applied to the internal solenoid, which releases the lock mechanism. This Type 2 Interlocking Device with Guard Locking complies with ISO 14119 and provides certified safety performance for machinery protection applications.
Key Features
- Positive-mode tongue-operated design with solenoid lock release
- 2 normally closed (N.C.) safety contacts + 2 auxiliary normally open (N.O.) contacts
- Flexible actuator for variable mounting positions
- 12-pin M23 quick-disconnect terminal interface
- 24VDC solenoid voltage (standard configuration)
- Break-before-make contact operation
- Die-cast alloy construction for industrial durability
- Certified per ISO 14119 and KC/TC standards
Technical Specifications
- Part Number: 440G-MT47163
- Manufacturer: Allen-Bradley / Rockwell Automation
- Device Type: Guard Locking Interlock Switch (Solenoid)
- Solenoid Voltage: 24VDC
- Contact Configuration: 2 N.C. (Safety) + 2 N.O. (Auxiliary)
- Contact Type: Break-Before-Make
- Maximum Output Current: 100 mA
- Actuator Type: Flexible
- Connection Terminal: 12-Pin M23 Quick-Disconnect (QD)
- Material: Die-Cast Alloy
- Safety Standard: ISO 14119 Type 2 Interlocking Device
- Certifications: KC, TC
- Series: Guardmaster 440G-MT
Typical Applications
- Machine guard interlocking on industrial presses and stamping equipment
- Access door locking for hazardous machinery zones
- Safety enclosure controls for packaging and assembly lines
- Emergency stop circuit integration in safety control systems
- Gate and barrier locking in automated production environments
Compatibility & Replacements
Compatible With
- Allen-Bradley Guardmaster safety systems and safety relays
- Rockwell Automation control platforms with 24VDC solenoid circuits
- Standard industrial safety-rated control systems using 24VDC logic
- ISO 14119 Type 2 machine safety applications
- Emergency stop (E-stop) and safety interlock networks
Replaces / Drop-In Replacement For
- 440G-MT47163 variants (Series A configuration)
- Verify model compatibility with your system integrator before ordering, as other 440G-MT series variants (440G-MT47164, 440G-MT47165, 440G-MT47166 with different solenoid voltages or contact configurations) require different specifications.
Works With
- Rockwell Automation Studio 5000 safety programming environments
- Allen-Bradley Guardmaster safety control modules
- 24VDC safety relay circuits and solid-state safety controllers
- EtherNet/IP networks for integrated machine diagnostics
- ISO 13849-1 safety-rated systems at PLd/PLe performance levels
