{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TM172PDG18R","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"TM172PDG18R","canonicalUrl":"https://aoctrl.com/schneider/TM172PDG18R","factsUrl":"https://aoctrl.com/api/mcp/products/TM172PDG18R","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Modicon M172 programmable controller, TM172PDG18R, HVAC, 8 analog inputs, 6 relay outputs, Ethernet/RS485, 2.4 in depth.","salesMarkdown":"## 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.","metaTitle":"Schneider TM172PDG18R Modicon M172 Programmable Controller,","metaDescription":"TM172PDG18R is an active Modicon M172 programmable controller for HVAC. Features backlit LCD (128x64), 8 AI, 2 AO, 6 DO, 2 DI, Ethernet, RS485, RTC. Sourced to order via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":[],"specifications":{"Depth":"2.4 in (60.5 mm)","Width":"2.8 in (72 mm)","Height":"4.3 in (110 mm)","Variant":"Programmable","Category":"US1PC1222537","Standards":"IEC 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)","Directives":"2014/35/EU - low voltage directive 2014/30/EU - electromagnetic compatibility","Display type":"Backlit LCD - 128 x 64 pixels","Number of port":"1 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 clock":"Built-in clock, clock drift <= 30 s/month at -4...140 °F (-20...60 °C)","Input impedance":"10 kOhm","lifecycle_stage":"current","Local signalling":"1 LED (red) for programmable 1 LED (yellow) for programmable 1 LED (green) for programmable 1 LED (green) for power","Mounting Support":"DIN rail Panel mounting with accessory","Pollution degree":"2","Range of Product":"Modicon M171/M172","Relative humidity":"5...95 % non-condensing","Operating altitude":"0...6561.68 ft (0...2000 m)","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) 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)","Input/output number":"2 analog output 6 digital output 8 analog input 2 digital input","Sensor power supply":"5 V DC 40 mA supplied by the controller 24 V DC 100 mA supplied by the controller","Discrete input logic":"Sink or source (positive/negative) up to 2 kHz","Measurement accuracy":"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 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 category":"II","Total inputs/outputs":"18","Analogue input number":"8 configurable by pair","Discrete input number":"2","Nbr. of units in pkg.":"1","Analogue output number":"2 voltage/current 4...20 mA or 0...10 V or PWM (2 kHz)","Discrete input current":"5 mA AC/DC","Discrete input voltage":"24 V AC/DC","Discrete output number":"1 relay outputs SPDT with independent common 2 relay outputs SPST with same common 3 relay outputs SPST with independent common","Power consumption in W":"11 W 24 V AC/DC","Discrete output current":"3 A relay SPST 3 A relay SPDT","IP degree of protection":"IP20","Product or Component Type":"Programmable controllers","[Us] rated supply voltage":"24 V +/- 10 % AC 20...38 V DC","Product Specific Application":"HVAC","Ambient Air Temperature for Storage":"-22...158 °F (-30...70 °C)","Ambient air temperature for operation":"-4...140 °F (-20...60 °C)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$269.24 – $551.67","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4c9f53d456563b96f685aaae35a829ce.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/TM172PDG18R/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does the TM172PDG18R carry?","answer":"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)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/TM172PDG18R","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/schneider/TM172PDG18R when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:21:01.794Z","lastPublished":"2026-09-02T08:21:01.794Z","indexable":true}}