Siemens 6ES7331-7KF02-0AB0

Product identity

Product overview

The Siemens 6ES7331-7KF02-0AB0 is an SM331 eight-channel analog input reference in the SIMATIC S7-300 family. The official commissioning guide identifies the exact article number and a separate 20-pin front connector. Its example covers current measurement; the installed measuring-range configuration and wiring still need individual review. Preserve the complete 7KF02 article code when sourcing. Another SM331 with a similar name may use a different input arrangement or connector and must not be accepted solely on the family designation.

Manufacturer

Siemens

Part number

6ES7331-7KF02-0AB0

Product type

SIMATIC S7-300 SM331 eight-channel analog input module

Series

SIMATIC S7-300

Category

PLC and I/O modules

Technical reference

Analog inputs

8

Front connector

20-pin; requested separately as needed

Diagnostics

Alarm diagnostics

Catalog reference data reviewed 2026-10-21. Confirm the exact unit and application before ordering; these parameters do not establish interchangeability.

Before requesting this part

Provide the complete article number, hardware status and installed rack/CPU information. Record each required signal type, the measuring-range-module settings, engineering parameters and the actual front connector. State whether that connector is required with the supplied module; an example-station parts list is not proof of the contents of a seller offer. For a failed unit, describe the fault and which inputs are used. Ask for actual-unit label photos, condition and an agreed test of the required channels. Review any changed article code and parameterization before accepting an alternative, and include quantity, destination and required date.

Manufacturer documentation

Siemens SM331 commissioning guide — exact model and connector, page 7

Use the exact model row and the stated document page. Shared family names or similar part numbers do not establish interchangeability. Module Scout can help review supplier options for your requirement; actual-unit condition and supply terms require separate verification.

Browse plc and i/o modules or read our verification process.

Sourcing capabilities

Conditions considered on request

These are sourcing capabilities, not claims of current stock. Exact condition and evidence are stated in the quotation.

From requirement to a usable quote

Send the full MPN, quantity, acceptable condition, delivery country and required date. We may ask for missing identity or application details before sourcing.

A proposed quote must identify the exact item, revision where relevant, condition, quantity, price and currency, estimated lead time, delivery terms, warranty provider and scope, and validity. Supply remains subject to verification.

Read about hard-to-find part sourcing, replacement review or a multi-part requirement.