Overview
The Allen-Bradley 42MRL-5000 is a transmitted beam photoelectric sensor photohead from the PHOTOSWITCH Series 5000 modular platform. This infrared emitter-based sensor delivers reliable object detection for industrial automation and motion control applications requiring precision light-beam sensing over medium distances. The unit operates with light/dark selectable output modes, making it adaptable to diverse control logic configurations.
Key Features
- Transmitted beam sensing mode with infrared LED light source
- Modular design: photohead removable from power base with single-screw quick-change
- Light/dark selectable output logic
- 5 ms sensor response time for fast switching applications
- Sensing range 25.4 mm – 171 mm (1 in – 6.7 in)
- Compatible with Series 5000 power bases and mounting hardware
Technical Specifications
- Model: 42MRL-5000
- Sensing Method: Transmitted Beam
- Light Source: Infrared LED (Green Line designation)
- Sensing Distance: 25.4 mm – 171 mm
- Response Time: 5 ms
- Output Selection: Light ON (L.O.) / Dark ON (D.O.) Selectable
- Photohead Type: Modular, removable from power base
- Certifications: UL Listed, CSA Certified, CE Marked
- Series: PHOTOSWITCH 5000 Modular
Typical Applications
The 42MRL-5000 serves in part detection, object counting, positioning verification, and material handling conveyors where transmitted beam detection is required. Its 5 ms response time and 171 mm maximum range make it suitable for medium-speed automation processes. Commonly deployed in bottling lines, packaging systems, automotive assembly lines, and discrete parts processing where reliable photoelectric switching enhances system uptime and precision.
Compatibility & Replacements
Compatible With
- Allen-Bradley PHOTOSWITCH Series 5000 power bases
- 42MTB-5000, 42MTB-5001, 42MTB-5002, 42MTB-5003, 42MTB-5004 power bases
- Standard Series 5000 mounting brackets and accessories
- Industrial PLC and automation controllers via Series 5000 I/O modules
Replaces / Drop-In Replacement For
The 42MRL-5000 is a photohead component designed for use with Series 5000 power bases. Direct replacement capability depends on your power base model and wiring configuration. Verify compatibility with your system integrator before ordering, as photohead and power base pairing must match your automation control requirements.
Works With
- Rockwell Automation Studio 5000 (for programming associated control logic)
- RSLogix platforms
- ControlLogix, CompactLogix, and other Rockwell PLC platforms
- Standard 24 VDC industrial automation networks
- EtherNet/IP and other Rockwell communication protocols (via power base selection)
