Overview
The Turck NI14-M18-AP6X inductive sensor is a non-embeddable cylindrical proximity switch designed for reliable target detection in industrial automation. This M18-sized sensor delivers a 14mm rated switching distance and PNP normally-open output, making it ideal for machine control, conveyor systems, and equipment position sensing. Chrome-plated brass construction and IP67 protection ensure durability in demanding environments.
Key Features
- 14mm sensing range with stable, repeatable detection
- PNP normally-open output; 200mA maximum load current
- Operating voltage 10–30 VDC; 500 Hz switching frequency
- M18 × 1 threaded barrel; non-flush mounting design
- IP67 rated with chrome-plated metal housing for corrosion resistance
- LED status indicator (yellow) for visual output confirmation
- Compact 52mm body length, 18mm diameter
Technical Specifications
- Sensing range: 14 mm (max)
- Thread size: M18 × 1
- Housing material: Metal (CuZn), chrome-plated
- Sensor output: PNP
- Supply voltage: 10–30 VDC
- Load current: 200 mA (RMS max)
- Switching frequency: 500 Hz
- Operating temperature: −25…+70 °C
- Protection class: IP67
- Vibration resistance: 55 Hz (1 mm)
- Shock resistance: 30 g (11 ms)
- Mounting: Non-flush, threaded barrel
- Housing diameter: 18 mm
- Body length: 52 mm
- Max tightening torque: 25 Nm
- Certifications: RoHS Compliant
Typical Applications
- Machine tool part detection and workpiece positioning
- Conveyor belt presence sensing and flow control
- Automated assembly line synchronization
- Press and stamping equipment limit switches
- Packaging machinery gate and door sensors
- Material handling equipment height and position sensing
Compatibility & Replacements
Compatible With
- Allen-Bradley CompactLogix and ControlLogix analog/digital input modules
- Siemens S7-1200, S7-1500 digital input cards
- Mitsubishi FX and Q-series PLC input terminals
- Omron CJ and CP series controllers
- Any industrial control system accepting 10–30VDC PNP sensor output
- Standard M12 connector variants (check specific wiring configuration)
Replaces / Drop-In Replacement For
- Turck NI14-M18-AP6X-H1141 (standard variant)
- Turck NI14-M18-AP6X/S97 (extended temperature range −40…+70 °C)
- Turck NI14-M18E-AP6X-H1141 (extended barrel variant)
- Generic M18 inductive proximity sensors with 14mm range and PNP output
Works With
- Standard PLC digital input modules (24VDC, 10–30VDC sourcing inputs)
- Industrial control relays and safety modules
- Motor drives and variable frequency drives (VFDs) with sensor inputs
- PROFIBUS and PROFINET gateways via IO-Link adapters
- EtherNet/IP networks through appropriate IO-Link masters








