Overview
The Allen-Bradley 42GRF-9002-QD is a fiber optic infrared photoswitch sensor from the industry-standard Series 9000 photoelectric sensor family. Designed for industrial automation, motion control, and process monitoring, this Series A unit delivers precise light-level detection using fiber optic transmission technology. The sensor’s robust design and proven Allen-Bradley quality make it suitable for manufacturing, packaging, material handling, and assembly line applications where reliable sensing is critical.
Key Features
- Fiber optic sensing technology for accurate detection in challenging environments
- Series 9000 PHOTOSWITCH platform with proven reliability in industrial automation
- Mini Quick-Disconnect (QD) connector for tool-free installation and field serviceability
- Compact sensor head design for tight mounting spaces
- Series A specification ensuring compatibility with standard Allen-Bradley control systems
Technical Specifications
- Model: 42GRF-9002-QD
- Series: 9000 Photoelectric Sensors
- Sensor Type: Fiber Optic Infrared Photoswitch
- Connector Type: Mini Quick-Disconnect (5-pin for AC/DC SPDT models)
- Output Type: SPDT Relay (standard for fiber optic models)
- Operating Voltage: 70–264 V AC/DC (typical for 9002 series)
- Response Time: < 50 ms (standard photoswitch response)
- LED Indicator: Built-in alignment indicator
- Mounting: Threaded sensor head with bracket compatibility
- Certifications: UL, CSA, CE marked
Typical Applications
The 42GRF-9002-QD is ideal for:
- Material presence and absence detection
- Part counting and sorting systems
- Conveyor line monitoring and control
- Packaging and labeling equipment
- Assembly line synchronization
- Product ejection and diverting controls
Compatibility & Replacements
Compatible With
- Allen-Bradley CompactLogix and ControlLogix programmable controllers
- Most 24 V and higher AC/DC industrial control systems
- Standard relay-based control circuits
- DIN-rail mounted terminals and industrial control cabinets
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The 42GRF-9002-QD is part of the Series 9000 family; ensure your replacement application matches the original sensor’s voltage, output type (relay vs. transistor), and connector configuration.
Works With
- Allen-Bradley Studio 5000 (for PLC integration)
- Standard SPDT relay wiring and logic circuits
- Industrial control networks (when used with appropriate gateway modules)
- Field-mount sensor cable assemblies (sold separately)














