Festo SME-8M-DS-24V-K-0,3-M8D 543861 Magnetic Reed Proximity Sensor T‑Slot

Festo SME-8M-DS-24V-K-0,3-M8D is a magnetic reed proximity sensor designed for T‑slot pneumatic cylinders, grippers, and linear drives. Detects the piston magnet through non‑contact magnetic field sensing. Rated operating voltage 24 V DC (5 to 30 V DC/AC). NO (normally open) switching output with 500 mA max load current. It can be inserted from the top into the T‑slot and is flush with the cylinder profile, with yellow LED switching status indication. Delivered pre‑assembled and standard‑equipped with cable clip and inscription labels.

Applications:

• Pneumatic cylinder end‑position feedback

• Gripper position monitoring in pick‑and‑place

• T‑slot integrated drive systems

• Factory, packaging and material handling automation

Core Specifications:

• Sensing principle: Magnetic reed contact

• Slot compatibility: T‑slot, insertion from above

• Switching output: 3‑wire, bipolar/contacting, NO contact

• Rated operating voltage: 24 V DC (5 … 30 V DC/AC)

• Max. output current: 500 mA (switching capacity 10 W DC, 10 VA AC)

• Electrical connection: 0.3 m PUR cable + M8x1 A‑coded 3‑pin male connector (screw lock)

• Switching status indication: Yellow LED

• Enclosure rating: IP65 / IP68

• Ambient temperature (fixed installation): –40 … +70 °C

• Ambient temperature (moving cable): –5 … +70 °C

• Max. switching frequency: 480 Hz

• Housing material: Nickel‑plated brass, PA, TPE‑U(PUR), high‑alloy steel（corrosion‑resistant）

Advanced Specifications:

• Based on standard: EN 60947‑5‑2

• Approvals: c UL us listed (OL), RCM, CE mark（to EU EMC Directive）

• Cable design: Suitable for energy chains (drag chains) and robots, tested for >5 million cycles at 75 mm bending radius

• Cable sheath material: TPE‑U(PUR)

• Voltage drop: < 1.17 V

• Oil‑resistant, free of copper and PTFE, RoHS compliant

System Integration:

• Insert from above into the T‑slot of any compatible cylinder or gripper; flush with the cylinder profile for a space‑saving fit.

• The 0.3 m cable with M8x1 A‑coded connector allows easy connection to remote IO or valve terminal inputs.

• Switching status provides binary feedback to a PLC (sinking/sourcing digital input).

Related Products:

• SME‑8M‑DS‑24V‑K‑2,5‑OE – 2.5 m cable, open end

• SME‑8M‑DS‑24V‑K‑5,0‑OE – 5 m cable, open end

• SME‑8M‑ZS‑24V‑K‑0,3‑M8D – N/C switching output (closed in rest position)

• NEBU‑M8G3‑K‑…‑LE4 – Pre‑fabricated connection cable (M8 female to open end)