Overview
The Eaton E52-18RU04-CN is a rectangular-style inductive proximity sensor designed for applications requiring compact mounting where tubular sensors cannot fit. This 3-wire DC device delivers reliable ferromagnetic object detection with 4mm sensing distance and PNP open collector output configuration. Built with robust PBT housings and epoxy potting for corrosion and shock resistance, the E52-18RU04-CN integrates seamlessly into motion control systems and industrial automation equipment.
Key Features
- Compact Rectangular Design — Space-saving profile for applications where tubular sensors cannot be used
- 4mm Sensing Distance — Reliable detection of ferromagnetic objects with <1% accuracy
- PNP Open Collector Output — Single NO contact for direct integration with PLC logic inputs
- Robust Construction — PBT plastic housing with epoxy fill to withstand shock, vibration, and corrosion
- Status Indicator LED — Bright LED clearly shows sensor state during operation and troubleshooting
- High Switching Speed — 500 Hz switching frequency for dynamic motion control applications
Technical Specifications
- Sensing Method: Inductive (ferromagnetic detection)
- Sensing Distance: 4 mm
- Accuracy: <1%
- Supply Voltage: 10 to 30 VDC
- Output Type: PNP Open Collector
- Contact Configuration: 1NO (Normally Open)
- Load Current (max): 100 mA at 30 VDC
- Switching Frequency: 500 Hz
- Cable Length: 2m (6.5 ft)
- Operating Temperature: -13°F to +131°F (-25°C to +55°C)
- Enclosure Rating: NEMA 4/12, IP66
- Housing Material: PBT plastic with epoxy potting
- Dimensions: 0.71 × 1.18 × 0.39 in. (18 × 30 × 10 mm)
- Connection Type: 2m Cable
Typical Applications
- Metal detection in conveyor systems and part feeders
- Machine tool positioning and workpiece presence detection
- Robotic arm motion control and end-of-stroke sensing
- Assembly line automation and part counting
- Packaging equipment and carton detection
- Space-constrained mounting locations requiring rectangular form factor
Compatibility & Replacements
Compatible With
- Allen-Bradley CompactLogix, ControlLogix, and MicroLogix PLC systems via 24VDC input module
- Siemens S7-1200, S7-1500 controllers with digital input modules
- Mitsubishi FX series PLCs with 24VDC input card
- Omron CP/CJ series PLCs with compatible input terminals
- Industrial motion control systems and servo drives (10-30VDC supply)
- Standard 24VDC industrial automation cabinets and power supplies
Replaces / Drop-In Replacement For
- Eaton E52-18RU04-B (cable connection variant)
- Eaton E52-18RU04-C (NPN output variant)
- Similar rectangular inductive sensors in the Eaton E52 family with equivalent specs
Works With
- Studio 5000 and RSLogix 5000 (for logic configuration and I/O mapping)
- TIA Portal (Siemens systems integration)
- EtherNet/IP and PROFINET via gateway devices
- 24VDC control circuits and hardwired logic relay panels
- Eaton E52 series accessories and mounting brackets
