The Original New Schneider Electric TM3AI8 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 channels for voltage (0-10V, ±10V) or current (0-20mA, 4-20mA) signals. A removable screw terminal block ensures secure field wiring. Part of the Modicon TM3 expansion family, it features a simple interlocking assembly mechanism for quick DIN rail mounting. 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 | 1 ms + 1 ms per channel conversion time | Removable screw terminal block (3.81 mm pitch) | 1500V AC isolation between input and supply | IP20 protection | –10°C to +55°C operating temperature | 23.6 mm width Key Features: Original New Schneider Electric TM3AI8 module 8 analog input channels individually configurable for voltage or current Supported input ranges: 0-10V, ±10V, 0-20mA, 4-20mA 12-bit resolution (11 bits + sign) for precise measurement 1 ms + 1 ms per channel conversion time 1500V AC isolation between input and supply 500V AC isolation between input and internal logic Removable screw terminal block for secure and easy wiring Green LED for module power status indication Simple interlocking assembly with Modicon TM3 controllers DIN rail mounting (35 mm, TH35-7.5 or TH35-15) 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 I/O expansion Technical Specifications: Attribute Specification Catalog Number TM3AI8 Product Family Modicon TM3 Product Type Analog input module Number of Channels 8 Input Ranges Voltage: 0-10V, ±10V; Current: 0-20mA, 4-20mA Resolution 12 bits (11 bits + sign) Input Impedance Voltage: ≥1 MΩ; Current: ≤50 Ω LSB Value Voltage 0-10V: 2.44 mV; Voltage ±10V: 4.88 mV; Current 0-20mA: 4.88 μA; Current 4-20mA: 3.91 μA Conversion Time 1 ms + 1 ms per channel + controller cycle time Accuracy ±0.2% of full scale at 25°C Temperature Drift ±0.01% FS/°C Repeat Accuracy ±0.5% FS Non-linearity ±0.2% FS Rated Supply Voltage 24V DC Supply Voltage Limits 20.4…28.8V Current Consumption 40mA at 5V DC via bus (full load); 35mA at 5V DC (no load); 40mA at 24V DC via external supply (full load); 30mA at 24V DC (no load) Insulation Input to supply: 1500V AC; Input to internal logic: 500V AC Electrical Connection 10 x 1.5 mm² removable screw terminal block, pitch 3.81 mm Cable Type Twisted shielded pairs, max 30 m Width 23.6 mm Height 90 mm Depth 70 mm Net Weight 0.11 kg Protection Rating IP20 Mounting DIN rail TH35-7.5 or TH35-15 (IEC 60715) Operating Temperature –10°C to +55°C (horizontal) Storage Temperature –25°C to +70°C Standards IEC 61131-2 Certifications CE, cULus, UKCA, RCM, EAC 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 Related Products: TM3AI8G – 8-channel analog input module (spring terminal version) TM3AI4 – 4-channel analog input module 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.
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