Overview
The Allen-Bradley 42GRF-9002-QD is an industrial-grade fiber optic photoswitch sensor from the 9000 series designed for high-reliability motion detection and object sensing. With a large aperture fiber optic configuration, this sensor excels in applications where optical sensing through fiber cables is required. The standard on/off function and SPDT relay output make it suitable for controlling equipment in manufacturing, assembly, and material handling systems.
Key Features
- Large aperture fiber optic sensing technology for enhanced range and reliability
- 70-264V AC/DC universal voltage input for flexible installation across multiple system types
- SPDT (Single Pole Double Throw) electromagnetic relay output for switching control
- Mini quick-disconnect connector for tool-free, maintenance-friendly installation
- Standard on/off switching function with simple, intuitive operation
- 2-meter cable assembly included for immediate deployment
Technical Specifications
- Model: 42GRF-9002-QD Series B
- Sensor Type: Fiber Optic Photoswitch (Photoelectric)
- Input Voltage: 70–264V AC/DC
- Output: SPDT Electromagnetic Relay
- Optical Configuration: Large Aperture Fiber Optic
- Function: Standard On/Off
- Connector Type: Mini Quick-Disconnect
- Cable Length: 2 meters (included)
- Weight: 0.54 lbs
- Series: 9000
Typical Applications
- Conveyor belt presence detection and motion control
- Object detection in manufacturing and packaging lines
- Machine safeguarding and interlock control
- Parts counting and quality assurance systems
- Level sensing in silos and hoppers via fiber optic probe
- Automated material handling and sorting systems
Compatibility & Replacements
Compatible With
- Allen-Bradley automation controllers and PLCs
- Industrial relay control panels and motor starters
- Rockwell Automation industrial systems
- Any 70–264V AC/DC industrial control circuit
- SPDT relay-compatible switching circuits
Replaces / Drop-In Replacement For
- Earlier series fiber optic photoswitch units requiring SPDT relay output
- Verify compatibility with your system integrator before ordering for legacy system replacements
Works With
- Allen-Bradley Compact/ControlLogix and MicroLogix platforms
- Industrial relay logic and hardwired control circuits
- Monitoring and diagnostic software compatible with SPDT relay signals
- Standard PLC discrete input modules accepting 24V relay signals












