Festo SMT-8M-A-PS-24V-E-0,3-M8D 574334 T-Slot Magnetoresistive Proximity Sensor

Festo SMT-8M-A-PS-24V-E-0,3-M8D is a magnetoresistive proximity sensor designed for position sensing in standard T‑slots of pneumatic actuators, grippers and linear drives. Its short, compact design allows flexible retrofit. The 3‑wire PNP output provides a switching signal, while the fixed cable with M8x1 A‑coded male connector ensures a robust, space‑saving electrical connection. Resistance to oil, coolants and cleaning agents, plus an extended temperature range from -40 °C to +85 °C, makes this sensor suitable for harsh factory automation tasks. The measurand is mechanical position; the sensor electronics are fully encapsulated.

Applications:

• Pneumatic cylinder end‑position sensing (grippers, linear actuators)

• OEM equipment on packaging and material handling machinery

• Robotic pick‑and‑place position feedback

• Automated assembly lines in harsh environments

Core Specifications:

• Product type: Magnetoresistive proximity sensor (SMT‑8 series)

• Slot compatibility: For T‑slot (from above insertion, flush with cylinder contour)

• Operating voltage: 5 … 30 V DC

• Rated operating voltage: 24 V DC

• Output type: PNP, 3‑wire, normally open (N/O) contact

• Max output current: 100 mA (short‑circuit & overload protected)

• Sensing principle: Magneto‑resistive (contactless, solid‑state)

• Electrical connection: 0.3 m gray PUR cable + M8x1 A‑coded male connector, 3‑pin

• Protection degree: IP65 / IP68 / IP69K (IEC 60529)

• Weight: approx. 8.9 g

Advanced Specifications:

• On time ≤ 1.3 ms; off time ≤ 1.4 ms

• Max switching frequency: 180 Hz

• Switching element function: N/O contact

• Reverse polarity protection: present for all electrical connections

• Switching status indication: yellow LED; function reserve indication: orange LED

• Repetition accuracy: 0.2 mm

• Max switching capacity DC: 2.8 W

• Voltage drop (saturated): < 1.5 V

• Conductor cross‑section: 0.14 mm²

• Cable characteristic: suitable for energy chains and robot applications (torsion resistance > 300 000 cycles ±270°/0.1 m)

• Ambient temperature (non‑flexible installation): -40 … +85 °C; (flexible cable installation): -20 … +85 °C

• Material of housing: nickel‑plated brass / PA‑reinforced / high‑alloy stainless steel

• Cable sheath material: TPE‑U(PUR)

• Mounting position: any; tighten screw (max torque 0.6 Nm)

• Based on standard: EN 60947‑5‑2

Standards & Compliance:
Refer to manufacturer official documentation for certification details (c UL us listed, RCM, CE, RoHS, halogen‑free, free of copper and PTFE).

Related Products (upgrade path):

• Same series, longer cable → SMT-8M-A-PS-24V-E-2,5-OE (2.5 m cable, open end)

• Same series, no printed label holder → SMT-8M-A-PS-24V-E-0,3-M8D (current model)

• Different output variant (PSO) → SMT-8M-A-PSO-24V-E-0,3-M8D (PNP N/O with different contact configuration)

• Accessory (Mating cable) → NEBU-M8G3-K‑…‑LE4 (pre‑fabricated connection cable for M8 socket)