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Schneider Electric TM171VEVD4

Schneider TM171VEVD4 Modicon M171 EEV Driver, 24 V DC, IP20

MPNTM171VEVD4
Obsolete

Schneider Modicon M171 EEV driver, autonomous & hardwired, order code TM171VEVD4, 8 I/O (4 analog, 2 digital input, 2 digital output), 1 Modbus RS485 port, 24 V DC, DIN rail, IP20, CE marked.

Schneider Electric TM171VEVD4 datasheet (PDF)
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

TM171VEVD4 key specifications
ParameterValue
Display typeWithout Display
Range of productModicon M171
Product or component typeController
Supply voltage24 V +/- 10 % AC/DC
Sensor power supply5 V DC 12 V DC
IP degree of protectionIP20
Mounting supportDIN rail
Depth2.4 in (61.6 mm)
Width2.8 in (70.2 mm)
Height3.4 in (87 mm)
MarkingCE
CategoryUS1PC1222537

All specifications

TM171VEVD4 additional specifications
ParameterValue
Contacts usageVolt-free contacts
Number of port1 Modbus serial link - RS485
Input (output number)8 total) 4 analog input 2 digital input 2 digital output
Discrete input logicSink or source (positive/negative)
Analogue input number2 analog input NTC 2 analog input Pt 1000 4...20 mA or 0...5 V or 0...10 V
Discrete input number2
Discrete output number1 open collector 1 SPST
Ambient air temperature for operation23...122 °F (-5...50 °C)

Product details

Overview

The TM171VEVD4 is a Schneider Modicon M171 EEV driver, order code TM171VEVD4, designed for autonomous and hardwired control of electronic expansion valves. The unit provides 8 I/O total: 4 analog inputs (2 NTC, 2 Pt1000, configurable for 4...20 mA, 0...5 V, or 0...10 V), 2 digital inputs (sink or source), and 2 digital outputs (1 open collector, 1 SPST relay). A single Modbus RS485 serial port is included. The TM171VEVD4 carries CE marking and is classified as a controller within the Modicon M171 range.

Compared to the TM171VEVA2 (1 analog input, 1 digital output, 2 I/O total), the TM171VEVD4 offers 4 analog inputs, 2 digital inputs, and 2 digital outputs — 8 I/O total. The additional analog channels support both NTC and Pt1000 probes, and the second output is a SPST relay. Choose the TM171VEVD4 when the application requires more sensor inputs and a relay output for valve or alarm control.

Lifecycle

The TM171VEVD4 is discontinued by Schneider, effective 2021-02-12. No direct successor is listed in the Modicon M171 range. For new designs or replacements, evaluate current-production controllers in the Modicon M171/M172/M173 family that offer equivalent I/O and EEV drive capability.

MPN
TM171VEVD4