SIEH-M12B-PS-K-L-CR – Proximity Sensor – Festo Inductive Sensors

USD $ 75.18 USD $ 61.65

SKU: Festo 538252

Manufacturer Part Number: Festo 538252
Festo Proximity Sensors: SIEH-M12B-PS-K-L-CR
OEM Spec Ref 

The Festo SIEH-M12B-PS-K-L-CR, with MPN 538252, is an advanced inductive sensor expertly designed to enhance detection and positioning accuracy within a variety of industrial settings. This sensor is tailored to offer reliable and precise performance, essential for optimizing automation processes.

Key Features:

  • High Sensitivity and Accuracy: Ensures precise detection and measurement, critical for maintaining high-quality control in automated processes.
  • Robust Construction: Built to withstand the challenging conditions of industrial environments, enhancing durability and reliability.
  • Compact Design: Its small form factor allows for installation in limited spaces, providing flexibility without compromising functionality.
  • Easy Integration: Designed for straightforward implementation into existing systems, minimizing setup time and complexity.
  • Versatile Application: Suitable for a broad range of industrial applications, from machinery positioning to assembly line control.


  • Enhanced Process Efficiency: Improves the accuracy and speed of automated systems, directly impacting productivity and operational throughput.
  • Reduced Downtime: Reliable performance and sturdy construction minimize breakdowns and maintenance requirements, keeping systems operational for longer periods.
  • Increased Equipment Lifespan: By providing accurate detection and reducing mechanical stress, it helps extend the life of machinery and equipment.
  • Improved Safety: Enhances overall safety by ensuring precise operations and reducing the likelihood of accidents caused by sensor failures.


  • Manufacturing Automation: Plays a vital role in the precise control of automated manufacturing processes, ensuring components are correctly positioned and handled.
  • Material Handling: Essential for the accurate detection and management of materials within logistics and supply chain operations.
  • Vehicle Positioning: Used in automated guided vehicles for precise navigation and positioning within industrial facilities.
  • Quality Control Systems: Integral to systems that require consistent and accurate measurements for quality assurance purposes.

The Festo SIEH-M12B-PS-K-L-CR Inductive Sensor is a testament to Festo’s commitment to advancing industrial automation technology, offering a precise and robust solution for enhancing system accuracy and efficiency.

Technical Data

Feature Specification
Conforms to standard EN 60947-5-2
Symbol 00991702
Certification RCM compliance mark
c UL us – Listed (OL)
CE marking (see declaration of conformity) As per EU EMC directive
Rated operating distance 6 mm
Assured operating distance 4.86 mm
Reduction factors Aluminum = 1.0
Stainless steel, 1 mm thick = 0.45
Stainless steel, 2 mm thick = 0.9
Copper = 0.85
Brass = 1.3
Steel St 37 = 1.0
Ambient temperature -25 °C … 70 °C
Switching output PNP
Switching element function N/O contact
Reproducibility, switching value FS 0.3 mm
Hysteresis ≤0.73 mm
Max. switching frequency 600 Hz
Max. output current 200 mA
Voltage drop 2 V
Inductive protective circuit Installed
Output current < 100 mA
and switching frequency < 10 Hz
Short-circuit protection Pulsed
DC operating voltage range 10 V … 30 V
Residual ripple 20 %
Idle current <12 mA
Reverse polarity protection for all electrical connections
Electrical connection 3-wire
– Material of cable sheath TPE-U(PUR)
– Size M12
Type of mounting With lock nut
Mounting type Flush
Product weight 90 g
Housing material High-alloy steel
Switching status indication LED yellow
Ambient temperature with flexible cable installation -5 °C … 70 °C
Degree of protection IP67
Resistance to sensor fitting pressure 80 bar
Corrosion resistance class (CRC) 2 – Moderate corrosion stress
LABS (PWIS) conformity VDMA24364-B2-L
Selection of additional sensor information With increased switching distance
Electrical output PNP
Selection of sensor version Fully stainless steel housing
Weight 0.090 kg