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Schneider Electric TM172E28R

Schneider TM172E28R Expansion Module, 28 I/O, HVAC Control

MPNTM172E28R
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Schneider Electric Modicon M171/M172 additional I/O module, TM172E28R, 28 total I/O: 10 analog inputs, 2 analog outputs, 10 digital outputs (relay SPST 3 A), 6 digital inputs (24 V AC/DC), without display, CAN port, IP20.

$204.47 – $264.00Ref. price · indicative, final on quote
Schneider Electric TM172E28R datasheet (PDF)
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MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

TM172E28R key specifications
ParameterValue
Display typeWithout Display
Range of productModicon M171/M172
Analogue input typeNTC NK103 Beta 3977 temperature probe - 40...137 °C 0.1 °C 10 kOhm at 25 °C) NTC 103AT-2 Beta 3435 temperature probe - 50...110 °C 0.1 °C 10 kOhm at 25 °C) current 0...20 mA 1 digit < 150 Ohm current 4...20 mA 1 digit < 150 Ohm voltage 0...10 V 1 digit > 10 kOhm voltage 0...5 V 1 digit > 20 kOhm absolute or ratiometric) impedance 0...1500 hOhm 1 hOhm 10 kOhm impedance 0...300 daOhm 1 daOhm 2 kOhm direct input 1 digit Dry contact) PTC - 55...150 °C 0.1 °C 2 kOhm Pt 1000 temperature probe - 200...850 °C 0.1 °C 2 kOhm
Product or component typeAdditional I/O module
Discrete input voltage24 V AC/DC
Supply voltage24 V +/- 10 % AC 20...38 V DC
Discrete input current2.5 mA AC/DC
Discrete output current3 A relay SPST
Sensor power supply5 V DC 50 mA 24 V DC 125 mA
Power consumption in24 VA 24 V AC 15 W 24 V DC
IP degree of protectionIP20
Mounting supportDIN rail Panel mounting with accessory

All specifications

TM172E28R additional specifications
ParameterValue
Pollution degree2
Relative humidity5...95 % non-condensing
Depth2.3 in (59 mm)
Width2.8 in (72 mm)
Height4.3 in (110 mm)
StandardsIEC 61000-4-4 EN 60068-2-27 CSA E60730-2-9 IEC 61000-4-11 CAN/CSA-E60730-1 UL 60730-2-9 EN 60730-2-9 EN 60730-1 IEC 61000-4-5 IEC 61000-4-3 EN 60068-2-6 Fc IEC 61000-4-2 UL94 (material V0)
CategoryUS1PC1222537
Directives2014/35/EU - low voltage directive 2014/30/EU - electromagnetic compatibility
Number of port1 CAN port - screw terminal block
Realtime clockWithout clock
Input impedance20 kOhm
Input (output number)2 analog output 6 digital input 10 analog input 10 digital output
Discrete input logic2 positive logic (sink) up to 2 kHz 4 positive logic (sink)
Measurement accuracyNTC NK103 - 40...+110 °C +/- 1 °C NTC NK103 110...137 °C +/- 1.9 °C NTC 103AT-2 - 50...110 °C +/- 1 °C PTC - 55...+135 °C +/- 1.1 °C PTC - 150...135 °C +/- 3.1 °C Pt 1000 - 200...-100 °C +/- 5 °C Pt 1000 - 100...-50 °C +/- 3 °C Pt 1000 - 50...+200 °C +/- 1.5 °C Pt 1000 200...600 °C +/- 15 °C Pt 1000 600...850 °C +/- 30 °C 0...20 mA 0...4 mA +/- 2 % of full scale +/- 1 digit 0...20 mA 4...20 mA +/- 1 % of full scale +/- 1 digit 4...20 mA +/- 1 % of full scale +/- 1 digit 0...10 V +/- 1 % of full scale +/- 1 digit 0...5 V +/- 1 % of full scale +/- 1 digit HOhm 0...700 hOhm +/- 10 hOhm HOhm 700 hOhm...1200 hOhm +/- 25 hOhm HOhm 1200 hOhm...1500 hOhm +/- 60 hOhm DaOhm 0...300 daOhm +/- 2.5 daOhm
Overvoltage categoryII
Total inputs (outputs)28
Analogue input number10 configurable by pair
Discrete input number2 4
Analogue output number2 programmable
Discrete output number3 relay outputs SPST with same common 2 relay outputs SPST with same common
Product specific applicationHVAC control
Ambient air temperature for storage-22...158 °F (-30...70 °C)
Ambient air temperature for operation-4...149 °F (-20...65 °C) UL 60730-1

Product details

28 I/O Expansion for Modicon M172

The TM172E28R is a Modicon M171/M172 additional I/O module with 28 total inputs and outputs — 10 analog inputs configurable by pair, 2 programmable analog outputs, 10 relay outputs rated 3 A each, and 6 digital inputs at 24 V AC/DC. Designed for HVAC control, it supports NTC, PTC, Pt1000, 0-10 V, 0-5 V, and 4-20 mA sensor types. The 10 analog inputs are configurable by pair, so you can mix temperature probes and current loops on the same module. The relay outputs are SPST with 3 A rating — adequate for switching damper actuators or signal lights within a controller cabinet. Power draw is 24 VA at 24 V AC or 15 W at 24 V DC. Dimensions: 2.3 in deep by 2.8 in wide by 4.3 in tall. Mounts on DIN rail or panel with accessory. Operating temperature range -20 to +65 °C.

Certifications

Compliant with IEC 61000-4-4, EN 60068-2-27, CSA E60730-2-9, UL 60730-2-9, and others. Also meets EU Low Voltage and EMC directives.

Frequently asked questions

What compliance certifications does TM172E28R hold?

It complies with IEC 61000-4-4, EN 60068-2-27, CSA E60730-2-9, UL 60730-2-9, and others, plus EU Low Voltage and EMC directives.

MPN
TM172E28R