Festo2-242-95-0020VTUG Valve Terminal Assembly with 25-Pin Sub-D Multi-Pin Electrical Interface, 24 V DC

Product Description

What this part is

A Festo pneumatic valve terminal assembly built around the VAEM-L1-S-M1-25 electrical interface — the multi-pin end plate that gathers every valve solenoid on a VTUG valve manifold onto a single 25-pin sub-D (D-sub) connector. Instead of running an individual cable to each valve, the machine builder lands one loom on the terminal and the interface distributes 24 V DC switching signals internally. 2-242-95-0020 is the OEM assembly number the unit was supplied under; VAEM-L1-S-M1-25 is Festo’s own designation for the electrical interface, Festo part number 573445.

Correcting the source data

The VAEM number is often taken for a valve. It is not one: VAEM-L1-S-M1-25 is the electrical interface module (M1-25 = the 25-pin multi-pin variant, also catalogued as V20). It carries no air. What makes this listing a valve assembly is the VTUG terminal it is mounted on, together with the parts shown in the photographs.

Decoding the order code

VAEM — Festo electrical interface for valve terminalsL1 — interface generation / form for the VTUG valve terminal familyS — sub-D style connectionM1 — multi-pin (parallel wiring) rather than fieldbus25 — 25 pins, giving up to 24 addressable solenoid outputs plus common2-242-95-0020 — the OEM / machine-builder assembly number this unit was catalogued under

What these specs mean in practice

Multi-pin is parallel wiring, not a network. Every solenoid is one PLC output, so there is no bus configuration, no node address and no gateway firmware to match — which is exactly why machine builders still specify it, and why it is straightforward to retrofit. The trade-off is cable count at the cabinet end: a 25-pin loom has to be made off or bought.

Valve solenoids on this platform run on 24 V DC. The sub-D interface will not accept mains voltage.

A multi-pin interface is specific to its valve terminal family. It will not adapt a VTUG terminal to a fieldbus, and it will not fit the older VTUB or CPV platforms.

Published specifications

Type: pneumatic valve terminal assembly with multi-pin electrical interfaceElectrical interface: VAEM-L1-S-M1-25 (Festo 573445)Connector: 25-pin sub-D, multi-pin / parallel wiringValve supply voltage: 24 V DCPlatform: Festo VTUG valve terminalOEM assembly number: 2-242-95-0020Origin: Germany

Quantity and configuration

One assembly, new old stock, supplied with the additional parts visible in the listing photographs. Mating 25-pin sub-D cable / loom is not included.

Installation and setup notes

Check the pin-to-valve mapping against your PLC output list before you power it — on a multi-pin terminal the physical valve order and the pin order are set by how the terminal was originally built, not by a standard. Count valve positions and blanking plates against your circuit, and note which valve slices are fitted before ordering additional slices; VTUG positions are populated to the original machine’s requirement.

Interchange guidance

Festo 573445 is the interface on its own. VAEM-L1-S-…-AP variants are the same interface family with a different connection form — related parts, not substitutes. A VTUG terminal built for fieldbus (CPX / CTEU) uses a different end plate entirely and cannot take a multi-pin interface without changing the terminal.