Overview
The Eaton Cutler-Hammer 1451B-6501 polarized reflex sensor is an industrial-grade photoelectric unit from the proven 50 Series platform. Designed for reliable detection in polarized retroreflective mode, this sensor offers flexibility, durability, and consistent optical performance in a self-contained package. The modular design allows engineers to configure outputs, logic functions, and sensing modes to match application requirements without needing multiple SKUs.
Key Features
- 15 ft polarized reflex sensing range — detects reflectorized targets cleanly without false triggers from ambient reflections
- Visible red sensing beam — aids in alignment and troubleshooting during installation
- Fast response time: 2–18 ms selectable — suitable for high-speed conveyor and material-handling applications
- Fully potted construction — resists washdown, oils, vibration, and shock environments
- Removable sealed cover — provides tool-free access to interchangeable output and logic modules
- Compact right-angle package — mounts in tight spaces with optional Eaton brackets for precision alignment
Technical Specifications
Verify electrical and mechanical details before integration:
- Input Voltage: 90–132 VAC, 50/60 Hz
- Output Current: 50 mA to 2 A (depends on output device module)
- Sensing Method: Polarized Retroreflective (Reflex)
- Sensing Range: 15 feet
- Sensing Beam: Visible Red
- Response Time: 2–18 ms
- Connector Type: 5-Pin Mini Connector
- Enclosure Material: Body: Noryl; Lens: Nylon
- Dimensions: 1.64 in L × 1.83 in W × 3.19 in H
- NEMA Rating: 1, 3, 4, 12, 13
- Operating Temperature: −40 °F to 158 °F (−40 °C to 70 °C)
- Series: Eaton 50 Series Enhanced
Typical Applications
- Conveyor presence detection and product counting on assembly lines
- Packaging machinery object detection
- Loading dock and material-handling zone monitoring
- Automated equipment safety edge detection
- Environmental and high-humidity industrial environments requiring sealed construction
Compatibility & Replacements
Compatible With
- Standard 90–132 VAC industrial control circuits
- Eaton pilot devices and control relays
- Generic AC-powered relay and PLC input modules accepting 24 VDC logic signals
- Mechanical push-button stations in conjunction with output relay contacts
- Industrial automation and motion control cabinets
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The 1451B-6501 is configured for polarized reflex mode; alternative 50 Series models may substitute if equipped with matching output type and connector.
Works With
- Eaton modular output device and logic function modules (sold separately)
- Standard industrial power supplies and control transformers
- Mechanical and electronic push-button stations
- AC relay logic and hardwired control systems
- Small PLC and micro-controller I/O modules with relay or logic-level input compatibility
