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Schneider Electric TM172PDG18R

Schneider TM172PDG18R Modicon M172 Programmable Controller,

MPNTM172PDG18R
Active

Schneider Electric Modicon M172 programmable controller, TM172PDG18R, HVAC, 8 analog inputs, 6 relay outputs, Ethernet/RS485, 2.4 in depth.

$269.24 – $551.67Ref. price · indicative, final on quote
Schneider Electric TM172PDG18R 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

TM172PDG18R key specifications
ParameterValue
Display typeBacklit LCD - 128 x 64 pixels
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) 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 1500 Ohm PTC temperature probe - 55...150 °C 0.1 °C 1500 Ohm Pt 1000 temperature probe - 200...850 °C 0.1 °C 1500 Ohm current 0...20 mA/4...20 mA 1 digit < 150 Ohm direct input 10 kOhm Dry contact)
Product or component typeProgrammable controllers
Discrete input voltage24 V AC/DC
Supply voltage24 V +/- 10 % AC 20...38 V DC
Discrete input current5 mA AC/DC
Discrete output current3 A relay SPST 3 A relay SPDT
Sensor power supply5 V DC 40 mA supplied by the controller 24 V DC 100 mA supplied by the controller
Power consumption in11 W 24 V AC/DC
IP degree of protectionIP20
Mounting supportDIN rail Panel mounting with accessory

All specifications

TM172PDG18R additional specifications
ParameterValue
Pollution degree2
Relative humidity5...95 % non-condensing
Operating altitude0...6561.68 ft (0...2000 m)
Depth2.4 in (60.5 mm)
Width2.8 in (72 mm)
Height4.3 in (110 mm)
StandardsIEC 61000-4-6 CAN/CSA-E60730-1 IEC 61000-4-5 CSA E60730-2-9 IEC 61000-4-2 UL 60730-1 IEC 61000-4-3 EN 60068-2-27 UL 60730-2-9 EN 60068-2-6 Fc IEC 61000-4-4 EN 60730-2-9 IEC 61000-4-11 EN 60730-1 UL94 (material V0)
VariantProgrammable
CategoryUS1PC1222537
Directives2014/35/EU - low voltage directive 2014/30/EU - electromagnetic compatibility
Number of port1 CAN port - screw terminal block 1 USB type A - USB type A female 1 USB type mini B - USB device port Mini-B 2 RS485 - screw terminal block Modbus serial link or BACnet MS/TP) 1 Ethernet - RJ45 Modbus TCP and BACnet IP with webserver)
Realtime clockBuilt-in clock, clock drift <= 30 s/month at -4...140 °F (-20...60 °C)
Input impedance10 kOhm
Local signalling1 LED (red) for programmable 1 LED (yellow) for programmable 1 LED (green) for programmable 1 LED (green) for power
Input (output number)2 analog output 6 digital output 8 analog input 2 digital input
Discrete input logicSink or source (positive/negative) up to 2 kHz
Measurement accuracy0...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 DaOhm 0...300 daOhm +/- 2.5 daOhm NTC NK103 Beta 3977 - 40...+110 °C +/- 1 °C NTC NK103 Beta 3977 110...137 °C +/- 1.9 °C NTC 103AT-2 Beta 3435 - 50...110 °C +/- 1 °C PTC - 55...155 °C +/- 1.1 °C Pt 1000 - 200...-100 °C +/- 10 °C Pt 1000 - 100...-50 °C +/- 2.5 °C Pt 1000 - 50...100 °C +/- 1.5 °C Pt 1000 100...400 °C +/- 2.4 °C Pt 1000 400...850 °C +/- 10 °C HOhm 0...750 hOhm +/- 8.5 hOhm HOhm 750 hOhm...1500 hOhm +/- 24 hOhm
Overvoltage categoryII
Total inputs (outputs)18
Analogue input number8 configurable by pair
Discrete input number2
Analogue output number2 voltage/current 4...20 mA or 0...10 V or PWM (2 kHz)
Discrete output number1 relay outputs SPDT with independent common 2 relay outputs SPST with same common 3 relay outputs SPST with independent common
Product specific applicationHVAC
Ambient air temperature for storage-22...158 °F (-30...70 °C)
Ambient air temperature for operation-4...140 °F (-20...60 °C)

Product details

Field-ready programmable controller for HVAC

The TM172PDG18R is a Modicon M172 programmable controller built for HVAC jobs — it’s the controller you’d spec for a rooftop unit, chiller, or air handler. The backlit LCD (128 x 64 pixels) gives you local status without a laptop; the real-time clock drifts less than 30 seconds a month, so time-stamped alarms stay useful. It’s a current-production part, so no hunting surplus or last-time buys.

Mixed I/O and comms in a slim package

Eight analog inputs configurable by pair — handle temperature probes (NTC, PTC, Pt1000), voltage (0–10 V or 0–5 V), or current (0–20 mA / 4–20 mA). The two analog outputs can do 0–10 V, 4–20 mA, or PWM at 2 kHz. Six relay outputs split as SPDT or SPST, each rated 3 A. Two digital inputs accept sink or source at 24 V AC/DC, sampling up to 2 kHz. Communication covers Ethernet (Modbus TCP, BACnet IP, webserver), two RS485 ports (Modbus serial or BACnet MS/TP), USB for programming, and a CAN port. All this fits in a 2.8 x 4.3 x 2.4 in package that snaps onto DIN rail.

Frequently asked questions

What compliance documentation does the TM172PDG18R carry?

It complies with UL 60730-1, UL 60730-2-9, CSA E60730-1, EN 60730-1, EN 60730-2-9, and IEC 61000-4-2/3/4/5/6/11 for EMC and immunity. It also meets the Low Voltage Directive (2014/35/EU) and EMC Directive (2014/30/EU).

MPN
TM172PDG18R