SMT-8M-A-PS-24V-E-0.3-M8D

Product information

Product Overview

The SMT-8M-A is Festo’s electronic proximity switch for T-slot cylinders, inserted from above and flush with the profile. Festo describes it as a configurable universal standard solution with a magneto-resistive measuring principle, and lists it as suitable for universal use, either individually configurable or pre-assembled. It carries both a switching-status LED and an operating-reserve LED.

This page covers SMT-8M-A-PS-24V-E-0.3-M8D — Festo type code SMT-8M-A-PS-24V-E-0.3-M8D, order number 574334. Everything below is taken from Festo’s own product data for this order number: the technical values, the category path, the GTIN and the lifecycle notice are all reproduced from the manufacturer’s page rather than paraphrased, so you can check them against Festo’s documentation before you buy.

Why Buyers Specify This Model

• Magneto-resistive measuring principle — electronic sensing without moving contacts
• Inserted into the T-slot from above, flush with the cylinder profile
• For universal use, available individually configurable or pre-assembled
• LED switching status indication plus LED operating reserve indication, which helps set the switching point
• Cable lengths from 0.1 m to 30 m across the family, with open end or plug connection
• Inserted in the slot from above, flush with the cylinder profile

Technical Specifications (Official Festo Data)

Parameter	Official value
Electrical connection	1, connector system M8x1, A-coded, to EN 61076-2-104 Operational voltage range DC 5 V – 30 V Switching element function N/O contact
Switching output	PNP

Source: Festo official product page for order number 574334 (GTIN 4052568103095). Values are reproduced unchanged; they are not converted or rounded.

Ordering Information

Item	Official data
Manufacturer	Festo
Type code	SMT-8M-A-PS-24V-E-0.3-M8D
Festo order number	574334
GTIN	4052568103095
Festo category path	Products Sensors Cylinder sensors T-slot cylinder sensors SMT-8M-A SMT-8M-A-PS-24V-E-0,3-M8D Proximity sensor SMT-8M-A-PS-24V-E-0,3-M8D 574334
Series	Proximity switch SMT-8M-A

The order number and the type code both have to match. A single character in the type code can change the valve function, the cushioning or the connection, and it always changes the order number.

Lifecycle and Availability

Festo’s product page for this order number does not currently carry a discontinuation or successor notice, so we list it as a standard catalogue item. Availability is always confirmed against Festo’s stock at the time you order — we do not keep a stock figure on this page because it would be out of date the day it was written.

Official Documentation

Every figure on this page comes from Festo. Use the manufacturer’s own documents to verify it:

• Festo official product page — SMT-8M-A-PS-24V-E-0.3-M8D — the source of the technical values and the lifecycle notice above.
• Festo official series catalogue (PDF) — Festo’s own catalogue for this series, including the type code breakdown and the ordering data for every variant.

Ordering This Part

Before we quote, please confirm:

• the complete Festo type code, exactly as it appears on the drawing or the nameplate — not just the series name;
• the order number if you have it, so we can cross-check the code against Festo’s catalogue;
• the quantity and the delivery address;
• for cylinders, the stroke and the mounting style, because both are fields in the order code;
• for valves and sensors, the electrical connection and the voltage, because these are fields in the order code.

Send us a photograph of the nameplate if the code is hard to read — that is usually the fastest way to avoid shipping the wrong variant.

Frequently Asked Questions

What does SMT-8M-A-PS-24V-E-0,3-M8D mean?
The code gives the family and slot form (SMT-8M-A), the switching output and function (PS = PNP, N/O contact), the nominal voltage (24V), the electrical connection (E = cable, 0.3 = cable length in metres, M8D = M8 plug), so this variant is a PNP normally-open switch on a 0.3 m cable with an M8 plug.

What is the difference between the SMT-8M and SMT-10M?
They suit different cylinder slots. The SMT-8M-A is for the T-slot; the SMT-10M is for the round slot (C-slot) and is inserted from above in the same way. The slot form on your cylinder decides which one fits.

What does the operating reserve LED do?
It shows how much margin is left at the switching point, so the sensor can be positioned where the switch reliably operates rather than right at the edge of its sensing window. That is what makes it worth having on a machine that will be re-set during maintenance.

Do you supply the connectors as well?
Yes. The M8 and M12 plug versions need the matching connecting cable; we quote Festo connecting cables together with the sensors.