Overview
The Allen-Bradley 42GRF-9000 photoswitch is a Series 9000 large aperture fiber optic photoelectric sensor engineered for standard on/off light detection in industrial automation and motion control applications. Built with proven Rockwell Automation reliability, this sensor delivers consistent performance in manufacturing, packaging, and material handling systems.
Key Features
- Infrared 880 nm light source for reliable detection through various materials
- Large aperture fiber optic design for flexible sensing configurations
- NPN and PNP transistor output options for diverse controller integration
- 4-pin DC Micro (M12) integral quick disconnect for tool-free maintenance
- Fast 2 millisecond response time for precision timing applications
- NEMA 3, 4X, 6P, 12, 13 enclosure ratings for harsh environments
Technical Specifications
- Part Number: 42GRF-9000
- Manufacturer: Allen-Bradley / Rockwell Automation
- Series: Series 9000 Photoelectric Sensor
- Operating Voltage: 10–30 VDC at 30 mA
- Output Current: 250 mA
- Output Type: NPN/PNP Transistor
- Light Source: Infrared 880 nm
- Sensing Technology: Large Aperture Fiber Optic
- Response Time: 2 milliseconds
- Connection Type: 4-pin DC Micro (M12) Integral Quick Disconnect
- Operating Temperature: −34 to 70 °C
- Enclosure Rating: NEMA 3, 4X, 6P, 12, 13
- Material: Valox
- Standard: KC / TC
Typical Applications
- Bottling, canning, and beverage line control systems
- Automated packaging equipment and material sorting
- Box and carton detection on conveyor systems
- Web presence detection and web break detection
- Parts counting and position verification in assembly operations
- Machine guarding and safety interlock systems
Compatibility & Replacements
Compatible With
- Allen-Bradley CompactLogix, ControlLogix, and SLC 500 controllers
- Rockwell Automation Studio 5000 / RSLogix 5000 programming environments
- EtherNet/IP and ControlNet industrial networks
- Any 10–30 VDC PLC input module with NPN/PNP compatibility
- Standard industrial automation platforms with discrete input capability
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator or controls engineer before ordering. The 42GRF-9000 is part of the Series 9000 photoelectric sensor family and may supersede earlier sensor models in retrofit applications—consult Rockwell Automation literature or your distributor for exact replacement cross-references.
Works With
- Studio 5000 Logix Designer (RSLogix 5000) programming software
- EtherNet/IP communication protocol
- PROFIBUS and PROFINET networks with appropriate gateway modules
- Allen-Bradley FactoryTalk industrial software suite
- Standard 24 VDC industrial sensor networks and distributed I/O systems
