SIES-8M-NS-24V-K-7,5-OE – Festo Inductive Sensors

USD $ 68.04 USD $ 55.79

SKU: Festo 551396

Manufacturer Part Number: Festo 551396
Festo Inductive Sensors: SIES-8M-NS-24V-K-7,5-OE
OEM Spec Ref 

The Festo SIES-8M-NS-24V-K-7,5-OE, with MPN 551396 Inductive Sensors, is a high-performance inductive sensor meticulously designed to optimize the performance of pneumatic systems through precise detection and reliable operation. This sensor is engineered to seamlessly integrate into various industrial applications, ensuring consistent functionality and enhanced operational efficiency.

Key Features:

  • High Precision Detection: Engineered to provide exact detection with a minimal response time, this sensor maintains desired operational conditions, ensuring peak performance.
  • Robust Construction: Made from high-quality materials, the SIES-8M-NS-24V-K-7,5-OE is designed to withstand the harsh conditions of industrial environments, ensuring durability and a long lifespan.
  • Compact and Versatile Design: Its compact size allows for easy installation in space-constrained areas without compromising detection capability.
  • Easy Configuration: Features straightforward configuration options for quick setup and precise adjustments, facilitating optimal system integration.
  • Wide Compatibility: Compatible with a broad range of control systems, it can be seamlessly integrated into existing setups, offering great flexibility in system design.


  • Enhanced System Efficiency: By providing precise detection capabilities, it contributes to the efficiency and reliability of industrial processes, enhancing overall system performance.
  • Reduced Operational Costs: Helps minimize downtime and maintenance by delivering reliable and accurate performance, potentially leading to significant cost savings.
  • Increased Equipment Lifespan: Accurate detection prevents system overloads and reduces wear and tear on mechanical components, extending their operational life.
  • Improved Safety: Reliable operation and exact compliance with safety standards ensure safer workplace environments and adherence to industrial regulations.


  • Manufacturing Automation: Essential for automated assembly lines where precise detection of metal components is necessary to ensure high-quality production outcomes.
  • Control Systems: Plays a critical role in systems where exact detection of object presence or position is required for proper functionality.
  • Testing and Inspection: Ideal for use in systems that require precise sensor feedback for accurate testing and quality control.
  • General Industrial Use: Suitable for a broad range of applications in various sectors where metal detection is crucial for operational success.

The Festo SIES-8M-NS-24V-K-7,5-OE Inductive Sensor stands as a testament to Festo’s commitment to advancing sensor technology, providing a sophisticated solution for enhancing detection precision and optimizing industrial processes.

Technical Data

Feature Specification
Design For T-slot
Conforms to standard EN 60947-5-2
Symbol 00991704
Certification RCM compliance mark
c UL us – Listed (OL)
CE marking (see declaration of conformity) As per EU EMC directive
As per EU RoHS directive
KC characters KC EMC
Note on materials RoHS-compliant
Measured variable Position
Measuring principle Inductive
Rated operating distance 1.5 mm
Reduction factors Aluminum = 0.62
Stainless steel V2A = 0.95
Copper = 0.6
Brass = 0.72
Steel St 37 = 1.0
Ambient temperature -25 °C … 70 °C
Repetition accuracy under constant conditions ≤ 0.05 mm, approach from the side
Switching output NPN
Switching element function N/O contact
On time ≤1.0E-4 ms
Max. switching frequency 4500 Hz
Max. output current 150 mA
Max. switching capacity DC 4.5 W
Voltage drop ≤2 V
Inductive protective circuit Installed
Minimum load current 0 mA
Residual current ≤0.01 mA
Short-circuit protection Pulsed
Overload protection Available
DC operating voltage range 10 V … 30 V
Residual ripple 10 %
Idle current ≤10 mA
Reverse polarity protection for all electrical connections
Electrical connection 1, connection type Cable
Electrical connection 1, connection technology Open end
Electrical connection 1, number of pins/wires 3
Connection outlet orientation Longitudinal
Connector cable test conditions Flexural strength: as per Festo standard
Test conditions on request
Energy chain > 5 million cycles, bending radius 75 mm
Cable length 7.5 m
Cable characteristic Standard/suitable for energy chains
Color cable sheath Gray
Material of cable sheath TPE-U(PU)
Insulating sheath material PP
Size Slot 8
Type of mounting Flush with T-slot
Screwed tightly
Can be inserted in slot from above
Tightening torque 0.6 Nm
Mounting position Any
Mounting type Flush
Housing colour Black
Housing material PA
High-alloy stainless steel
Switching status indication LED yellow
Ambient temperature with flexible cable installation -5 °C … 70 °C
Degree of protection IP65
Insulation voltage 50 V
Surge resistance 0.8 kV
Corrosion resistance class (CRC) 3 – High corrosion stress
LABS (PWIS) conformity VDMA24364-B2-L
Suitability for the production of Li-ion batteries Metals with more than 1% by mass of copper, zinc or nickel by mass are excluded from use. Exceptions are nickel in steel, chemically nickel-plated surfaces, printed circuit boards, cables, electrical plug connectors and coils
Cleanroom class Class 4 according to ISO 14644-1
Contamination level 3
Selection of additional sensor information for T-slot
Electrical output NPN
Selection of sensor version Special design