TM3AI8G 8-Channel Analog Input Module 0-10V/4-20mA Spring Terminal | Schneider Electric

The Original New Schneider Electric TM3AI8G is an 8-channel analog input module for the Modicon TM3 I/O system, designed to expand the analog input capacity of Modicon M221, M241, M251, and M262 logic controllers. It provides 8 configurable input channels for voltage (0-10V, ±10V) or current (0-20mA, 4-20mA) signals with 12-bit resolution (11 bits + sign) [0†L21-L22][5†L6]. A removable spring terminal block enables tool-free, secure field wiring. Part of the Modicon TM3 expansion family, it features a simple interlocking assembly mechanism for quick DIN rail mounting [0†L7-L8].

Core Engineering Highlights:
8 analog input channels (voltage/current) | 12-bit resolution (11 bits + sign) | Configurable input ranges: 0-10V, ±10V, 0-20mA, 4-20mA [5†L4-L5] | 1 ms sample duration per channel [8†L18] | 1500V AC isolation (input to supply) | Removable spring terminal block (3.81 mm pitch) | IP20 protection | –10°C to +55°C operating temperature | 23.6 mm width | 0.1 kg weight [5†L27-L28][7†L12-L13]

Key Features:

• Original New Schneider Electric TM3AI8G module

• 8 analog input channels individually configurable for voltage or current

• Supported input ranges: 0-10V, ±10V, 0-20mA, 4-20mA [6†L3-L4]

• 12-bit resolution (11 bits + sign) for precise measurement [5†L6]

• 1 ms sample duration per channel [8†L18]

• ±0.2% of full scale accuracy at 25°C [8†L20]

• ±0.01% FS/°C temperature drift for stable measurement [8†L21]

• 1500V AC isolation between input and supply [5†L22]

• 500V AC isolation between input and internal logic [5†L22]

• Removable spring terminal block for tool-free, secure wiring [5†L19-L21]

• Green LED for module power status indication [7†L14-L16]

• Simple interlocking assembly with Modicon TM3 controllers

• DIN rail mounting (35 mm, TH35-7.5 or TH35-15) [5†L25-L27]

• IP20 protection with protective cover in place

• Twisted shielded cable, max 30 m [7†L11-L12]

Applications:

• Analog signal acquisition from pressure, flow, and level sensors

• Voltage and current signal monitoring in industrial automation

• Process control and data acquisition systems

• Packaging machinery and material handling equipment

• OEM equipment requiring Modicon TM3 analog input expansion

Technical Specifications:

System Compatibility:

• Schneider Electric Modicon M221 logic controllers

• Modicon M241 logic controllers

• Modicon M251 logic controllers

• Modicon M262 logic controllers

• EcoStruxure Machine Expert (formerly SoMachine) programming software

• Modicon TM3 I/O expansion bus

Installation Notes:

• Each analog input can be configured individually for voltage or current in the software

• Verify that physical wiring is compatible with the software configuration to avoid damage to the analog circuit [6†L9-L10]

• Sample duration is configurable: 1 ms per channel (default)

• Input filter time constant is configurable from 0 to 10 seconds in 10 ms increments

• Spring terminal block enables tool‑free, fast wiring

Related Products:

• TM3AI4 – 4-channel analog input module (screw terminal)

• TM3AI8 – 8-channel analog input module (screw terminal version)

• TM3AI8G – 8-channel analog input module (spring terminal, current model)

• TM3AQ4 – 4-channel analog output module

• TM3TI4 – 4-channel temperature input module

• TM3DI16 – 16-channel discrete input module

• TM3DQ16T – 16-channel transistor output module

PLC ERA is an independent industrial automation distributor supplying 100% genuine Original New products through established global supply channels. All products are factory sealed when applicable and undergo quality inspection prior to shipment. Schneider Electric, Modicon, and EcoStruxure are trademarks of Schneider Electric SE.