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Brand: Schneider Electric
Schneider Electric TM3AI4 TM3 4-Channel Analog Input
Description
TM3AI4 Modicon TM3 analogue input module: what it is and how the code reads
The TM3AI4 is a Schneider Electric product described in the datasheet as: analog input module, Modicon TM3, 4 inputs, screw, 24V DC. The TM3AI4 is an expansion module of the Modicon TM3 range with four analogue inputs for current and voltage signals. Seven Star LLC supplies the TM3AI4 in Oman and the GCC as an independent supplier based in Muscat.
Decoding the reference: TM3 is the expansion-module range, DI/DQ/AI marks the function (discrete input, discrete output, analogue input) and the number is the channel count (4 analogue inputs). The TM3AI4 is compatible with Modicon M221; Modicon M241; Modicon M251; Modicon M262.
Technical specifications of the TM3AI4
| Parameter | Specification |
|---|---|
| Manufacturer / part number | Schneider Electric / TM3AI4 |
| Description | analog input module, Modicon TM3, 4 inputs, screw, 24V DC |
| Range | Modicon TM3 |
| Product type | Analog input module |
| Range compatibility | Modicon M221; Modicon M241; Modicon M251; Modicon M262 |
| Analogue inputs | 4 |
| Input type | Current 4 to 20 mA; Current 0 to 20 mA; Voltage 0 to 10 V; Voltage – 10 to 10 V |
| Resolution | 12 bits; 11 bits + sign |
| Permissible continuous overload | 13 V voltage; 40 mA current |
| Input impedance | <= 50 Ohm; >= 1 MOhm |
| Sampling duration | 1 ms |
| Conversion time | 1 ms + 1 ms per channel + 1 controller cycle time |
| Absolute accuracy error | ± 0.1 % of full scale at 25 °C; ± 1 % of full scale |
| Repeat accuracy | ±0.5 %FS |
| Temperature drift | ± 0.006 %FS/°C |
| Non-linearity | ± 0.2 %FS |
| Cable | Twisted shielded pairs cable <30 m input |
| Current consumption | 35 mA 5 V DC no load; 45 mA 5 V DC full load; 30 mA 24 V DC |
| Electrical connection | 10 x 1.5 mm² removable screw terminal block with pitch 3.81 mm adjustment for inputs and supply |
| Local signalling | 1 LED green PWR |
| Mounting support | Top hat type TH35-15 rail IEC 60715 |
| Dimensions | 23.6 mm (W) x 90 mm (H) x 70 mm (D) |
| Net weight | 0.11 kg |
| Degree of protection | IP20 |
| Product certifications | CE; UKCA; RCM; EAC; CULus; CULus HazLoc |
| Standards | IEC 61131-2 |
How the TM3AI4 works with the controller
Each of the four channels is software-configured for a signal type; the datasheet lists Current 4 to 20 mA; Current 0 to 20 mA; Voltage 0 to 10 V; Voltage – 10 to 10 V. Resolution is 12 bits; 11 bits + sign, conversion time 1 ms + 1 ms per channel + 1 controller cycle time and absolute accuracy ± 0.1 % of full scale at 25 °C; ± 1 % of full scale.
Analogue signals are sensitive to noise. Use twisted shielded pairs, keep them away from motor and drive cables and ground shields at one end; the datasheet lists the cable as Twisted shielded pairs cable <30 m input.
Where the TM3AI4 fits in the Modicon system
The TM3AI4 attaches to the side of a Modicon controller and communicates over the internal expansion bus; it is powered through the expansion bus connection (the current draw is listed in the datasheet). Compatible controllers listed are Modicon M221; Modicon M241; Modicon M251; Modicon M262.
Related TM3 modules include TM3DI8 (inputs), TM3DQ16T (outputs) and TM3AI4 (analogue inputs); a typical machine mixes them with a TM221 or TM241 base unit such as TM221CE24R or TM241CE24R. Check the bus power budget when many modules are stacked.
Selection and ordering checklist for the TM3AI4
- Match each channel to the signal: 4-20 mA, 0-20 mA, 0-10 V or other listed ranges.
- Check loop power: external 24 V DC transmitters need their own supply.
- Verify resolution and accuracy meet the control loop need.
- Count channels and spares; four per module.
- Compatibility: Modicon M221; Modicon M241; Modicon M251; Modicon M262.
Installation, commissioning and maintenance of the TM3AI4
Clip the module on the DIN rail next to the controller and engage the expansion bus connector, then wire the removable terminal block. Dimensions are 23.6 mm (W) x 90 mm (H) x 70 mm (D) and weight 0.11 kg. Power off before attaching or removing modules, label the terminal block and keep wiring tidy for service.
After power-up, configure the module in the programming software and verify each channel with a simulator or live signal. Retain a documented I/O list. Modules have no user-serviceable parts: replace as a unit and restore the removable terminal block.
Typical applications of the TM3AI4 in Oman and the GCC
The TM3AI4 extends controllers on skids, pump stations, packaging machines, HVAC plant and utilities across Oman and the GCC. In those environments good cabinet cooling and clean wiring matter more than module choice.
TM3 module variants compared with the TM3AI4
| Reference | Function | Channels and signal |
|---|---|---|
| TM3DI8 | Discrete input module | 8 inputs, 24 V DC, sink or source |
| TM3DQ16T | Discrete output module | 16 transistor outputs, source (PNP), 24 V DC |
| TM3AI4 | Analogue input module | 4 inputs, current or voltage, configurable |
Pick the variant by signal type first, then by channel count. For the TM3AI4 the function is analogue input module with 4 analogue inputs, so a machine that needs both inputs and outputs will normally use more than one module type on the same controller. Expansion modules are specified by their own reference, so list each one with quantity when requesting a quotation.
Information to send with an RFQ for the TM3AI4
- Full reference TM3AI4 and quantity
- Controller model it will connect to
- Signal types and ranges
- Delivery location and timing
Site conditions in Oman for the TM3AI4
Control cabinets in Gulf plants often run hot, because many sit in outdoor kiosks or in rooms where air conditioning is not always reliable. Before you finalise the TM3AI4, check the permitted ambient range and any derating stated by the manufacturer against the real temperature inside your panel, and leave the recommended spacing around the device so that heat can escape. Long cable runs between the field and the marshalling cabinet are common on large sites, so confirm the signal types, wiring limits and earthing arrangement early in the design.
It also helps to standardise on a small number of part numbers across a project. Keeping a few spare TM3AI4 units on site in Oman shortens recovery time after a fault, and documenting configuration settings makes replacement faster for the maintenance team.
Documents and quotation
A datasheet for this product is attached on this page. It lists the electrical, mechanical and environmental data summarised above.
Send us the part number, quantity and application and we will confirm availability and a quotation. Seven Star LLC is an independent supplier in Muscat and does not represent itself as an official channel of the manufacturer.
Other Models in the Se Tm3 Range
Seven Star LLC supplies models from the Se Tm3 range in Oman and the GCC. Compare the related models below and request a quote for the one that matches your application.
| Model | Category | |
|---|---|---|
| Schneider Electric TM3DI8 TM3 8-Input 24 V DC Module | PLC & I/O Cards | View details |
| Schneider Electric TM3DQ16T TM3 16-Output Transistor Module | PLC & I/O Cards | View details |
| Schneider Electric TM3AI4 TM3 4-Channel Analog Input | PLC & I/O Cards | You are viewing this model |
Datasheets & Documents
- Datasheet Schneider Electric TM3AI4 Datasheet Download
Reviews (0)
About brand
Schneider Electric is the French group for energy management and industrial automation: low and medium voltage switchgear and circuit breakers, motor control, drives, PLCs, power monitoring, UPS systems and building management. Its history goes back to 1836, when the brothers Adolphe and Eugène Schneider took over the iron and steel works at Le Creusot in Burgundy. Over the 20th century the company left steel and heavy engineering and became an electrical group through acquisitions such as Merlin Gerin, Télémécanique, Square D and Modicon. Its head office is in Rueil-Malmaison near Paris, and its shares are listed on Euronext Paris.
Schneider Electric company profile
| Origins | 1836, Le Creusot, France: Adolphe and Eugène Schneider take over the Le Creusot foundry |
|---|---|
| Headquarters | Rueil-Malmaison (Paris region), France |
| Ownership | Public company listed on Euronext Paris |
| Key acquisitions | Télémécanique (1988), Square D (1991), Merlin Gerin (1992), Modicon (1997), APC (2007), Invensys (2014); majority owner of AVEVA software |
| Brand names still in use | Acti9, ComPacT and MasterPacT breakers, TeSys motor control, Altivar drives, Altistart soft starters, Modicon PLCs, Harmony control components, PowerLogic and Easergy protection and metering, APC UPS, EcoStruxure software platform |
| Product families | Low voltage distribution, medium voltage switchgear and protection relays, motor control and drives, PLCs and HMIs, power meters, UPS and cooling, enclosures, building automation and energy software |
Milestones
- 1836: The Schneider brothers acquire the Le Creusot works; the business grows in steel, locomotives and heavy engineering.
- 1975: First investment in Merlin Gerin, a French maker of electrical distribution equipment.
- 1988–1992: Télémécanique, Square D (USA) and Merlin Gerin join the group, making it an electrical specialist.
- 1997: Modicon, the company behind the first programmable logic controller, joins the group.
- 1999: The group takes the name Schneider Electric.
- 2007 and 2014: APC (UPS and data centre power) and Invensys (process automation) are acquired.
Choosing Schneider Electric breakers and motor control
Circuit breakers are chosen by current and breaking capacity. Acti9 miniature circuit breakers (iC60, C120) protect final circuits up to 125 A. ComPacT NSX molded case breakers cover about 16 to 630 A, and the letter after the frame size sets the breaking capacity: B, F, N, H, S, L from lowest to highest. MasterPacT air circuit breakers are used as main incomers on large switchboards. For motors, a TeSys contactor with an LRD overload relay or a GV2 motor circuit breaker suits direct starting, an Altistart soft starter reduces starting current, and an Altivar drive controls speed. The breaking capacity must always be at least the prospective short-circuit current at the point of installation.
Where Schneider Electric products are used
In Oman and the GCC, Schneider Electric equipment is found in main and sub-main switchboards of commercial and residential buildings, motor control centres in water, oil and gas and industrial plants, substations protected by Sepam and Easergy relays, data centres powered by Galaxy and APC UPS systems, and buildings controlled by EcoStruxure Building Operation.
APC by Schneider Electric: UPS and critical power
Since 2007, APC has been part of Schneider Electric and is now its product brand for uninterruptible power supplies, replacement batteries, battery packs, network management cards and rack power distribution. Our APC catalogue covers Smart-UPS line-interactive and on-line models, Easy UPS On-Line, the modular Symmetra LX, RM and PX ranges, Silcon three-phase systems and their spare part kits, and the RBC cartridges that keep them running. Schneider Electric breakers, drives and PLCs can be quoted together with APC UPS systems in one request.
Schneider Electric products we list
| Family | Examples |
|---|---|
| Circuit breakers | Acti9 iC60N, C120N, NSX100F, NSX250N, NSX630, EasyPact EZC, MasterPacT MTZ1, MasterPacT NW |
| Motor control | TeSys Deca LC1D, TeSys F, LRD overload relay, GV2ME08, Altistart 22, Altistart 480 |
| Drives | Altivar 12, Altivar 320, ATV340, Altivar Process 630, ATV930, Lexium 32 servo |
| PLCs, HMIs and relays | Modicon M221, M241, M580 BMEP582040, Zelio Logic, Magelis HMISTU655 |
| Protection, metering and power | Sepam series 20, Easergy P3U30, MiCOM P139, PM5560, iEM3255, Galaxy VS UPS |
Ordering Schneider Electric products: what we need
Send the commercial reference from the label (for example LC1D18M7 or ATV320U22N4C). For breakers, confirm the rated current, number of poles, breaking capacity and trip unit. For contactors, give the coil voltage. For drives, give the motor power and supply voltage. APC products are listed on their own brand page.
Facts checked against Schneider Electric's published company history, October 2026.
Browse Schneider Electric products by category: Circuit Breaker, Electrical & Power Modules, AC Drives, PLC & I/O Cards, Metering Systems, UPS and Batteries.
FAQ
Questions about the Schneider Electric TM3AI4 TM3 4-Channel Analog Input
Answers from our engineering team on installation, compatibility and integration.
01How many channels does the TM3AI4 have?
Four analogue inputs configurable for current or voltage.
02What accuracy does the TM3AI4 have?
The datasheet lists absolute accuracy error +/- 0.1 % of full scale at 25 °C; +/- 1 % of full scale.
03Which controllers is the TM3AI4 compatible with?
The datasheet lists Modicon M221; Modicon M241; Modicon M251; Modicon M262.
04How is the TM3AI4 mounted?
On a DIN rail per the datasheet (Top hat type TH35-15 rail IEC 60715).
05What are the dimensions of the TM3AI4?
23.6 mm (W) x 90 mm (H) x 70 mm (D), net weight 0.11 kg.
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