Overview
The Baumer IFFM 20P17A3/S35L is a compact rectangular inductive proximity sensor engineered for high-reliability object detection in industrial automation. This flush-mount sensor delivers an 8 mm nominal sensing distance and features a PNP make function (normally open) output, making it ideal for proximity-based automation, position sensing, and machine control applications.
Key Features
- 8 mm Nominal Sensing Distance — Fast, consistent object detection for metallic targets
- PNP NO Output Circuit — Direct logic-level compatibility with most industrial controllers and PLCs
- M8 Connector — Standardized quick-disconnect interface for rapid integration and serviceability
- 500 Hz Switching Frequency — Supports dynamic, high-speed sensing applications
- Short Circuit & Reverse Polarity Protection — Built-in protection extends sensor lifespan and reduces downtime
- IP67 Rating — Sealed against dust and water ingress for harsh operating environments
- Adjustable Hysteresis — 3–20% of sensing range for fine-tuned response in critical applications
Technical Specifications
- Sensing Distance: 8 mm
- Output Type: PNP NO (make function)
- Supply Voltage: 10–30 VDC
- Output Current: ≤200 mA
- Current Consumption (no load): ≤10 mA
- Voltage Drop: <2 VDC
- Operating Temperature: −25 to +75 °C
- Protection Rating: IP67
- Housing: Brass nickel-plated
- Sensing Face: PBT
- Switching Frequency: 500 Hz
- Hysteresis: 3–20% of Sr (adjustable)
- Connection: M8 connector
- Dimensions: 20 mm (width) × 32 mm (length)
- Output Indicator: Red LED
Typical Applications
- Position and limit sensing in linear and rotary motion systems
- Conveyor system and material handling detection
- Machine tool probe and part presence verification
- Proximity-based automation and machine guarding
- Industrial packaging and labeling equipment
- Assembly line count and sort applications
Compatibility & Replacements
Compatible With
- Allen-Bradley CompactLogix and ControlLogix PLCs
- Siemens S7-1200, S7-1500, and S7-300/400 controllers
- Mitsubishi FX and Q-series PLCs
- Omron CP/CJ-series PLCs
- Standard 24 VDC industrial control systems
- EtherNet/IP and PROFINET gateway modules
Replaces / Drop-In Replacement For
- Verify compatibility with your system integrator before ordering to ensure OEM approval for your specific machine or control system.
Works With
- Studio 5000 (Allen-Bradley)
- TIA Portal (Siemens)
- GX Works (Mitsubishi)
- CX-One (Omron)
- Any PLC or motion controller accepting 24 VDC PNP proximity sensor inputs












