TM172E28R

Name: TM172E28R
Brand: Schneider
SKU: TM172E28R

The Modicon M172 Optimized and Performance Expansion 28 I/Os is designed for HVAC control, offering efficient and reliable performance in a compact package.

Product ModelTM172E28R

Product ID34071

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
FeatureOptimized for HVAC control, ensuring precise temperature management.
2
Compact dimensions72mm x 59mm x 110mm, ideal for space-constrained installations.
3
FeatureLightweight at 0.19kg, easy to handle and install.
4
FeatureDesigned with environmental sustainability in mind, featuring a carbon footprint of 667 kg.eq.CO2 per CR, Total Life cycle.
5
FeaturePart of Schneider Electric's commitment to Net Zero status by 2050 through supply chain partnerships and circularity initiatives.

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Range of Product

Modicon M171/M172

Product or Component Type

Additional I/O module

Product Specific Application

HVAC control

Total inputs/outputs

Discrete input number

Discrete output number

3 relay outputs SPST with same common2 relay outputs SPST with same common

Discrete output current

3 A relay SPST

Analogue input number

10 configurable by pair

Analogue output number

2 programmable

Number of port

1 CAN port - screw terminal block

Input/output number

2 analog output6 digital input10 analog input10 digital output

Discrete input logic

2 positive logic (sink) up to 2 kHz4 positive logic (sink)

Discrete input voltage

24 V AC/DC

Discrete input current

2.5 mA AC/DC

input impedance

20 kOhm

Analogue input type

NTC 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

Measurement accuracy

NTC 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 °C0...20 mA 0...4 mA +/- 2 % of full scale +/- 1 digit0...20 mA 4...20 mA +/- 1 % of full scale +/- 1 digit4...20 mA +/- 1 % of full scale +/- 1 digit0...10 V +/- 1 % of full scale +/- 1 digit0...5 V +/- 1 % of full scale +/- 1 digitHOhm 0...700 hOhm +/- 10 hOhmHOhm 700 hOhm...1200 hOhm +/- 25 hOhmHOhm 1200 hOhm...1500 hOhm +/- 60 hOhmDaOhm 0...300 daOhm +/- 2.5 daOhm

Sensor power supply

5 V DC 50 mA24 V DC 125 mA

[Us] rated supply voltage

24 V +/- 10 % AC20...38 V DC

Power consumption in W

24 VA 24 V AC15 W 24 V DC

Realtime clock

Without clock

Display type

Without Display

Overvoltage category

Mounting Support

DIN railPanel mounting with accessory

Width

2.8 in (72 mm)

Height

4.3 in (110 mm)

Depth

2.3 in (59 mm)

Net Weight

0.42 lb(US) (0.19 kg)

Directives

2014/35/EU - low voltage directive2014/30/EU - electromagnetic compatibility

Standards

IEC 61000-4-4EN 60068-2-27CSA E60730-2-9IEC 61000-4-11CAN/CSA-E60730-1UL 60730-2-9EN 60730-2-9EN 60730-1IEC 61000-4-5IEC 61000-4-3EN 60068-2-6 FcIEC 61000-4-2UL94 (material V0)

Product Certifications

cURusEACCERCMCSA

Ambient air temperature for operation

-4...149 °F (-20...65 °C) UL 60730-1

Ambient Air Temperature for Storage

-22...158 °F (-30...70 °C)

Relative humidity

5...95 % non-condensing

IP degree of protection

IP20

Pollution degree