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Schneider Electric TM172OBM18R

Schneider TM172OBM18R Modicon M172 Controller, HVAC

MPNTM172OBM18R
Active

Schneider Electric TM172OBM18R Modicon M171/M172 programmable controller, HVAC variant, 8 analog inputs, 2 analog outputs, 6 relay outputs, 24 V AC/DC, IP20, active production.

$278.00Ref. price · indicative, final on quote
Schneider Electric TM172OBM18R 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

TM172OBM18R 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) 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 in10 W 24 V AC/DC
IP degree of protectionIP20
Mounting supportDIN rail Panel mounting with accessory

All specifications

TM172OBM18R 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)
StandardsEN 60068-2-6 Fc UL 60730-1 IEC 61000-4-3 IEC 61000-4-6 IEC 61000-4-5 IEC 61000-4-4 IEC 61000-4-11 CSA E60730-2-9 CAN/CSA-E60730-1 UL 60730-2-9 EN 60730-1 EN 60068-2-27 EN 60730-2-9 IEC 61000-4-2 UL94 (material V0)
VariantProgrammable
CategoryUS1PC1222537
Directives2014/30/EU - electromagnetic compatibility 2014/35/EU - low voltage directive
Number of port1 CAN port - screw terminal block 1 USB type mini B - USB device port Mini-B 2 RS485 - screw terminal block Modbus serial link or BACnet MS/TP)
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

The Schneider Electric TM172OBM18R is a Modicon M171/M172 programmable controller purpose-built for HVAC applications. It fits a compact 2.8 x 4.3 x 2.4 inch DIN-rail or panel-mount footprint and packs 8 analog inputs (configurable by pair as voltage, current, NTC, PTC, Pt1000, or dry contact), 2 analog outputs (voltage/current or PWM), and 6 relay outputs rated at 3 A each. Onboard interfaces include one CAN port, one USB mini-B, and two RS485 ports for Modbus or BACnet MS/TP, plus a real-time clock with drift under 30 s/month over the full -20 to 60 °C operating range.

Key ratings for your BOM

Supply: 24 V AC (+/-10%) or 20-38 V DC, max 10 W. Discrete inputs: sink/source up to 2 kHz; six relays each 3 A, SPDT/SPST.

Frequently asked questions

What compliance standards does the TM172OBM18R meet?

It complies with UL 60730-1, UL 60730-2-9, CSA E60730-1, CAN/CSA-E60730-2-9, IEC 61000-4-2/3/4/5/6/11, EN 60068-2-27, EN 60068-2-6, and EN 60730-1. Material rating is UL94 V0.

MPN
TM172OBM18R