{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TM172PBG28R","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"TM172PBG28R","canonicalUrl":"https://aoctrl.com/schneider/TM172PBG28R","factsUrl":"https://aoctrl.com/api/mcp/products/TM172PBG28R","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Modicon M171/M172, TM172PBG28R, Programmable Controller for HVAC and pumping, 28 I/O (8 DI, 8 AI, 8 DO, 4 AO), without display, IP20, DIN rail mount.","salesMarkdown":"Schneider Electric TM172PBG28R is a programmable controller in the Modicon M172 line for HVAC and pumping. It has 28 I/O: 8 DI, 8 AI configurable for NTC/PTC/Pt1000/voltage/current, 8 relay outputs, and 4 analog outputs (voltage or current/PWM); lifecycle status is current. If you’re feeding temperature or pressure signals from NTC, PTC, or Pt1000 probes into those 8 analog inputs, the 10 kΩ input impedance is standard for voltage loops but won’t load a 4–20 mA loop — that’s handled by the 1500 hΩ or 300 daΩ impedance when configured for current mode. The 2.5 mA wetting current on the discrete inputs is typical for 24 V AC/DC sink/source; no phantom voltage issues there. For noise-prone environments like pump houses or VFD-laden panels, this controller ships with a significant compliance suite: IEC 61000-4-2 (ESD), -4-3 (radiated RF), -4-4 (EFT/burst), -4-5 (surge), -4-6 (conducted RF), and -4-11 (voltage dips). That’s the kind of spec sheet you want when a nearby contactor pulls in and the analog input starts wobbling. The 5–95 % non-condensing humidity range and operating temperature of –20 to +60 °C cover most indoor HVAC mechanical rooms. Mount it on DIN rail or panel; IP20 means no hose-downs — keep it inside the cabinet.","metaTitle":"Schneider Electric TM172PBG28R Modicon M172 Controller, 28 I","metaDescription":"Active production. 28 I/O (8 AI configurable for NTC/PTC/Pt1000), Ethernet, RS485, BACnet. Sourced to order. Call for RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":[],"specifications":{"Depth":"2.4 in (60.5 mm)","Width":"5.7 in (144 mm)","Height":"4.3 in (110 mm)","Variant":"Programmable","Category":"US1PC1222537","Standards":"IEC 61000-4-5 IEC 61000-4-3 IEC 61000-4-2 EN 60068-2-27 EN 60730-1 EN 60068-2-6 Fc UL 60730-1 UL 60730-2-9 IEC 61000-4-4 CAN/CSA-E60730-1 IEC 61000-4-11 IEC 61000-4-6 CSA E60730-2-9 EN 60730-2-9 UL94 (material V0)","Directives":"86/188/EEC - physical agents (noise) directive 2006/95/EC - low voltage directive","Display type":"Without Display","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 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":"impedance 0...1500 hOhm impedance 0...300 daOhm NTC temperature probe - 50...110 °C 0.1 °C extended) voltage 0...10 V NTC temperature probe - 40...150 °C 0.1 °C current 0...20 mA/4...20 mA PTC temperature probe - 55...150 °C 0.1 °C voltage 0...5 V absolute or ratiometric) Pt 1000 temperature probe - 200...850 °C 0.1 °C","Input/output number":"8 digital input 8 analog input 4 analog output 8 digital output","Sensor power supply":"5 V DC 50 mA supplied by the controller 24 V DC 150 mA supplied by the controller","Discrete input logic":"Sink or source (positive/negative)","Overvoltage category":"II","Total inputs/outputs":"28","Analogue input number":"8 configurable by pair","Discrete input number":"8","Nbr. of units in pkg.":"1","Analogue output number":"2 voltage 0...10 V 2 voltage/current 4...20 mA or 0...10 V or PWM (2 kHz)","Discrete input current":"2.5 mA","Discrete input voltage":"24 V AC/DC","Discrete output number":"1 relay outputs SPDT with independent common 3 relay outputs SPST with same common 2 relay outputs SPST with same common 2 relay outputs SPST with independent common","Power consumption in W":"15 W 24 V AC/DC","Discrete output current":"1 A relay SPDT 3 A relay SPST","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 and pumping solution","Ambient Air Temperature for Storage":"-22...158 °F (-30...70 °C)","Ambient air temperature for operation":"-4...140 °F (-20...60 °C) UL 60730-1 -4...149 °F (-20...65 °C) with derating UL 60730-1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$438.15","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/TM172PBG28R/alternatives.json"},"ai":{"faq":[{"question":"What is the listed depth and width of this controller?","answer":"The TM172PBG28R has a depth of 2.4 in (60.5 mm) and a width of 5.7 in (144 mm). The height is 4.3 in (110 mm)."},{"question":"What compliance documentation does this controller carry?","answer":"The controller meets IEC 61000-4-2, -4-3, -4-4, -4-5, -4-6, -4-11, EN 60068-2-27 (shock), EN 60068-2-6 (vibration), EN 60730-1, EN 60730-2-9, UL 60730-1, UL 60730-2-9, and CSA E60730-1, -2-9. Material flammability is UL94 V0. Certifications are listed as per the evidence; a full declaration is available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/TM172PBG28R","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/TM172PBG28R 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}}