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Siemens 6AG1331-7KF02-2AB0 — Analog Input Modules

Siemens 6AG1331-7KF02-2AB0 Analog Input Module, -40 to 70°C

MPN6AG1331-7KF02-2AB0

Siemens 6AG1331-7KF02-2AB0 analog input module, EN 50155 rail-certified, -40 to 70°C, Pt100/Ni100/TC J/K/E/N/0-20mA/±5V, 40x125x120 mm.

$2,463.00Ref. price · indicative, final on quote
Siemens 6AG1331-7KF02-2AB0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

6AG1331-7KF02-2AB0 — Inputs & Signal Ranges
ParameterValue
Number of analog inputs8
Current input rangeYes
Voltage input rangeYes
Resistance measuring rangesYes
RTD support (resistance thermometer)Yes
Thermocouple support (types)Yes
Input range: 0 to 20 mAYes
Input range: 4 to 20 mAYes
Input range: -10 to +10 VYes
Input range: -5 to +5 VYes
Input range: -80 to +80 mVYes
Input range: 0 to 600 OhmYes
RTD type: Pt100Yes; Standard
RTD type: Pt200No
Current measurement: 2-wire transducerYes
Current measurement: 4-wire transducerYes
Input resistance (0 to 20 mA)25 Ω
Input resistance (4 to 20 mA)25 Ω
Input resistance (-10 to +10 V)100 kΩ
Permissible input voltage, max. (destruction limit)20 V; continuous; 75 V for max. 1 s (mark to space ratio 1:20)
Permissible input current, max. (destruction limit)40 mA
Max. shielded signal cable length200 m; 50 m at 80 mV and thermocouples
6AG1331-7KF02-2AB0 — Measurement Performance
ParameterValue
Resolution (bit incl. sign), max.15 bit; Unipolar: 9/12/12/14 bit; bipolar: 9 bit + sign/12 bit + sign/12 bit + sign/14 bit + sign
Voltage measurement error (±)0.6 %; ±0.4 % (250 mV to 1 000 mV); ±0.6 % (2.5 mV to 10 mV); ±0.7 % (80 mV)
Current measurement error (±)0.5 %; 3.2 to 20 mA
Interference voltage suppression (at interference frequency)400 / 60 / 50 / 10 Hz
6AG1331-7KF02-2AB0 — Diagnostics & Monitoring
ParameterValue
Diagnostic alarmYes; Parameterizable, channels 0 and 2
Diagnostics functionYes; Parameterizable
Limit value alarmYes; Parameterizable
6AG1331-7KF02-2AB0 — Isolation
ParameterValue
Isolation: channels to backplane busYes
Isolation: between channelsNo
Isolation test voltage500 V DC
6AG1331-7KF02-2AB0 — Power
ParameterValue
Rated value (DC)24 V; A power supply according to EN 50155 shall be used for railway applications
Power loss, typ.1 W
Reverse polarity protectionYes
6AG1331-7KF02-2AB0 — Mechanical
ParameterValue
Required front connector20-pin
Width40 mm
Height125 mm
Depth120 mm
Weight, approx.250 g

Product details

Rail-certified analog input for harsh environments

The 6AG1331-7KF02-2AB0: This means the module is qualified for rolling stock and wayside installations where the electronics must survive thermal cycling, vibration, and supply transients defined by the rail standard.

Supported input types and signal ranges

The module accepts Pt 100 and Ni 100 RTDs in standard curve, plus thermocouple types J, K, E, and N. For voltage signals it handles -1 V to +1 V, -5 V to +5 V, and 1 V to 5 V ranges; current inputs cover 0 to 20 mA. Resistance and direct voltage/current measurement modes are also available, giving flexibility for a range of transmitters and sensors.

The module carries CE mark, UL approval under File E239877, and KC approval, covering European, North American, and South Korean regulatory markets. The EN 50155 certification is the key differentiator — it confirms the module meets the railway application standard for temperature, shock, vibration, and power supply variations.

Frequently asked questions

Can 6AG1331-7KF02-2AB0 replace 6ES7331-7KF02-0AB0 directly?

The 6AG1331-7KF02-2AB0 is the SIPLUS extreme variant of the standard 6ES7331-7KF02-0AB0, with identical functionality but extended temperature range and EN 50155 rail certification. It is a drop-in replacement for applications requiring wider environmental tolerance.

How can I order the Siemens 6AG1331-7KF02-2AB0 analog input module?

This module is sourced to order against your BOM quantity.

MPN
6AG1331-7KF02-2AB0