Overview
The Balluff BES516-370-BO-C-PU is a cylindrical inductive proximity sensor designed for industrial automation and machine control applications. Built for flush mounting with a 2mm sensing range, this sensor delivers reliable non-contact detection in confined spaces where conventional mechanical switches are impractical. The M12 M-type connector and PNP normally closed (NC) output make it compatible with standard 24 VDC automation controllers and PLCs.
Key Features
- Cylindrical housing (Ø 12 × 60 mm) with flush mounting capability
- M12 male connector for quick disconnect and installation
- PNP output with normally closed (NC) switching configuration
- 2 mm sensing range with stable, repeatable detection
- IP68-rated housing for sealed, protected operation in wet or dusty environments
- Operating voltage: 10–30 VDC with wide input tolerance
Technical Specifications
This unit operates across a wide voltage range suitable for most industrial 24 VDC systems. The sensing frequency of up to 3 kHz supports dynamic applications requiring moderate switching speeds. The compact 12 mm diameter makes it ideal for integration into tight-tolerance fixtures and mounting blocks.
Typical Applications
- Assembly line position detection and counting
- Machine tool height and limit sensing
- Conveyor system presence detection
- Workpiece alignment and registration
- End-of-stroke limit switches in pneumatic and hydraulic systems
- Part presence verification in automated test stations
Compatibility & Replacements
Compatible With
- Allen-Bradley CompactLogix, ControlLogix, SLC 500, and Micro800 PLCs (24 VDC input modules)
- Siemens S7-1200, S7-1500, and S5 controllers with digital input cards
- Omron CJ, CS, and CP series PLCs
- Mitsubishi FX and Q series programmable controllers
- Standard 24 VDC industrial relay panels and machine control circuits
- EtherNet/IP and PROFINET networks via appropriate gateway or adapter modules
Replaces / Drop-In Replacement For
- Balluff BES01K5 series (alternative part designation for this sensor family)
- Other Balluff BES 516-370 variants with cable or M12 configurations
- Competitor cylindrical inductive sensors with M12 M-type connectors (2 mm range, PNP NC output)
- Verify mechanical fit and electrical pinout with your system integrator before installation
Works With
- Balluff Vision and IO-Link gateway modules for digital communication and diagnostics
- Standard 24 VDC power supplies and industrial distribution blocks
- M12 male straight connector cables (3 m, 5 m, or custom lengths)
- Mounting brackets and DIN-rail adapters compatible with M12 circular connectors
- PLC input modules supporting PNP discrete sensors (24 VDC logic)



