Overview
The Eaton 12100RQD07 is a professional-grade photoelectric thru-beam receiver from the Comet series, engineered for precision motion control and object detection in harsh industrial environments. This 18 mm tubular sensor combines a visible red sensing beam, rapid 3.5 ms response time, and switchable NPN/PNP open-collector output to deliver reliable detection across a 20 ft sensing range. The solid polyurethane housing provides exceptional vibration and impact resistance, making it ideal for conveyors, packaging lines, and assembly automation.
Key Features
- 20 ft sensing range – long-distance thru-beam detection for flexible system layouts
- Visible red sensing beam – quick alignment and setup without external tools
- 3.5 ms response time – fast detection for high-speed applications
- NPN/PNP switchable output – 100 mA PNP / 250 mA NPN at 10–30 VDC
- Light/dark operation selector – selectable logic for NO/NC functionality
- M18 polyurethane housing – IP67-rated, vibration and impact resistant
Technical Specifications
Electrical: 10–30 VDC supply; 100 mA PNP / 250 mA NPN switching current; 1 W power consumption; 50/60 Hz compatible. Sensing: Thru-beam (forward viewing), 20 ft (6 m) range, visible red laser, 3.5 ms response, light/dark switchable. Output: 4-pin M12 connector, NPN/PNP open-collector. Housing: 18 mm tubular, polyurethane, flattened sides for mounting flexibility. Certifications: UL listed (E117028), CSA certified (50513), NEMA 1/3/4/4X/6/12/13, IP69K enclosure rating. Operating environment: –4 to 158 °F (–20 to 70 °C).
Typical Applications
- Conveyor belt presence detection and throughput monitoring
- Packaging and labeling line control
- Parts counting and inventory automation
- Safety interlocks and machine guarding
- Assembly line synchronization
- Material handling and sorting systems
Compatibility & Replacements
Compatible With
- Allen-Bradley CompactLogix and ControlLogix PLCs
- Siemens S7-1200 and S7-1500 controllers
- Mitsubishi FX3U and iQ-R series PLCs
- Omron CP1E and NJ-series controllers
- 24 VDC industrial control systems
- Standard 24 VDC automation networks
Replaces / Drop-In Replacement For
The Eaton 12100RQD07 is the receiver component of thru-beam photoelectric pairs. Verify compatibility with your specific emitter model before ordering. Consult Eaton’s product compatibility documentation or contact your system integrator for confirmed replacement pairings.
Works With
- Eaton Comet series emitter modules (thru-beam pairs)
- Standard industrial 24 VDC power supplies
- M12 connector-based sensor networks
- Discrete I/O modules and DIN-rail terminals
- Open-collector logic and relay switching circuits




















