Overview
The Baumer IFFM 20P17A3/S35L is a subminiature inductive proximity sensor designed for flush-mount installations in compact industrial spaces. This PNP make-function (NO) switch detects ferrous metal objects at an 8mm nominal sensing distance and operates on 10-30VDC power. With a rectangular form factor measuring 20×32mm and M8 connector, it delivers reliable, repeatable detection in machine automation, assembly lines, and material handling systems.
Key Features
- 8mm nominal sensing distance (Sn) with 3-20% adjustable hysteresis
- PNP make-function (NO) output circuit for direct integration with programmable logic controllers
- 500 Hz switching frequency supports high-speed detection applications
- Brass nickel-plated housing with PBT sensing face resists corrosion in washdown and harsh environments
- IP67 rating provides complete dust and water protection
- Built-in short-circuit and reverse-polarity protection ensures long sensor life
- Red LED output indicator simplifies troubleshooting and commissioning
Technical Specifications
- Voltage Supply: 10–30VDC
- Current Consumption (No Load): 10mA max
- Output Switching Frequency: 500Hz
- Output Circuit: PNP make-function (NO)
- Output Current: 200mA max
- Voltage Drop (Vd): <2VDC
- Nominal Sensing Distance (Sn): 8mm
- Hysteresis: 3–20% of Sn
- Housing Dimensions: 20mm width × 32mm length (rectangular)
- Housing Material: Brass, nickel-plated
- Sensing Face: PBT polymer
- Mounting Type: Flush
- Connector: M8 (3-pin)
- Operating Temperature: −25 to +75°C
- Protection Rating: IP67
- Short-Circuit Protection: Yes
- Reverse-Polarity Protection: Yes
Typical Applications
The Baumer IFFM 20P17A3/S35L is ideal for:
- Parts detection and part counting on assembly lines and conveyors
- Position sensing of sliding or rotating metal components
- Limit switching for machine guards and safety gates
- Material presence detection in automated material-handling systems
- End-of-stroke detection in pneumatic and hydraulic cylinders
- High-cycle production environments requiring rapid switching response
Compatibility & Replacements
Compatible With
- Allen-Bradley CompactLogix and ControlLogix PLC systems with PNP-compatible input modules
- Siemens S7-1200, S7-1500, and other discrete input cards accepting 10-30VDC sensors
- Mitsubishi FX and Q series controllers with appropriate 24VDC input modules
- Omron CP1E, CP1L, and CJ2M PLCs with PNP input terminals
- Standard industrial automation platforms supporting PNP proximity sensor signals
- EtherNet/IP and PROFIBUS gateways when integrated with appropriate I/O modules
Replaces / Drop-In Replacement For
The Baumer IFFM 20P17A3/S35L is a direct replacement for earlier Baumer IFFM 20P inductive sensor variants with similar dimensions, voltage rating, and M8 connector. Verify mechanical mounting and electrical pinout compatibility with your system integrator before ordering, as connector polarity and output configuration may vary between legacy models.
Works With
- Communication Protocols: Discrete DC signal output (PNP NO)
- PLC Input Modules: Any 10-30VDC discrete input card or terminal accepting PNP signals
- Industrial Networks: Compatible with I/O modules on EtherNet/IP, PROFINET, CANopen, and Modbus TCP networks when connected via appropriate gateway or remote I/O adapter
- M8 Connectors: Standard 3-pin M8 male connector for plug-and-play wiring
- Automation Software: Studio 5000 (Allen-Bradley), TIA Portal (Siemens), GX Works (Mitsubishi), Sysmac Studio (Omron)
