Overview
The Festo SMT-8-B proximity switch is a magneto-resistive electronic sensor engineered for industrial automation and motion control applications. Designed for T-slot mounting, this Series B model delivers reliable object detection and precise switching control in demanding manufacturing environments. The SMT-8-B combines compact design with robust construction, making it ideal for gripper sensing, cylinder position detection, and machine tool positioning.
Key Features
- Magneto-resistive measuring principle — contactless detection with no mechanical wear
- T-slot design — insertable in slot lengthwise with sturdy long guides
- LED status indication — visual switching confirmation for maintenance troubleshooting
- 3-wire PNP switching output — standard N/O contact configuration for industrial controls
- M8 connector — A-coded plug per EN 61076-2-104 for quick connection
- Wide temperature range — rated −40 to +90°C for harsh environments
Technical Specifications
- Rated Operating Voltage: 24 V DC
- Operating Voltage Range: 10–30 V DC
- Switching Output: 3-wire PNP N/O contact
- Max Switching Capacity DC: 3 W
- Voltage Drop: ≤2 V
- Off-State Current: <2,000 µA
- Connector Type: M8×1 A-coded, EN 61076-2-104
- Connector Cores: 3
- Mounting Type: Screw-clamped, insertable in slot lengthwise
- Operating Temperature: −40 to +90°C
- Series/Generation: SMT, Series B
Typical Applications
- Pneumatic and electric cylinder position sensing
- Gripper and end-of-arm tooling detection
- Machine tool and assembly equipment positioning
- Conveyor and material handling automation
- Industrial robotics and automated production lines
Compatibility & Replacements
Compatible With
- Festo pneumatic and electric drives
- Allen-Bradley and Siemens PLC controllers
- Industrial automation systems using 24 V DC logic
- Standard industrial control networks (EtherNet/IP, PROFINET where gateway-enabled)
Replaces / Drop-In Replacement For
- Festo SMT-8 Series (standard generation)
- Festo SMT-8-SL (lengthwise slot insertion variant)
- Previous SMT-8 magneto-resistive proximity sensors
Works With
- Festo diagnostic software and condition monitoring platforms
- Standard 24 V DC industrial control systems
- PLC analog and digital input modules
- EtherCAT-enabled motion controllers (via Festo gateway)
