Siemens 6SL3352-6TE37-5AA3 SINAMICS S120 Control Interface Board (CIB)

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Critical Selection Note: The 6SL3352-6TE37-xxx series contains multiple part numbers for different Motor Module current ratings. The correct CIB must be confirmed by checking the Motor Module type plate and cross-referencing the Siemens spare parts documentation for that specific module variant. Do not select based on voltage class alone.

What's Included

• 1 × Siemens 6SL3352-6TE37-5AA3 Control Interface Board

Note: Control Unit, Motor Module, connectors, and manual are not included.

Why Buy From Us?

• In Stock – Limited aftermarket stock available

• Tested – Each unit verified for functionality (refurbished units)

• Warranty Included – 12-month warranty for purchase confidence

• Technical Support – SINAMICS S120 compatibility assistance available

Frequently Asked Questions (FAQ)

Q1: What is the Siemens 6SL3352-6TE37-5AA3?

It is a Control Interface Board (CIB) replacement spare part for SINAMICS S120 chassis drives. It sits between the Control Unit and the IGBT power stage, managing gate drive signals and current feedback.

Q2: Is this product still available from Siemens?

No. It reached its end of lifecycle on April 5, 2012 . It is available only through the industrial aftermarket.

Q3: What is the voltage and current rating of this CIB?

It is designed for 3 AC 380–480 V motor modules with a rated current of 745 A .

Q4: Does replacing the CIB require re-parameterization?

No. The CIB does not store drive parameters—all configuration resides in the Control Unit (CU). After replacement, the drive reads its parameters from the CU and resumes operation without re-commissioning.

Q5: What fault might indicate a failed CIB?

F30021 (IGBT overcurrent) at standstill can be caused by a failed current measurement circuit on the CIB. Check whether phase current displays non-zero values at standstill as a diagnostic step.

Q6: How do I confirm the correct CIB part number?

The correct CIB is specific to the current rating of the Motor Module. Check the Motor Module type plate and cross-reference the Siemens spare parts documentation for that exact module variant. Do not rely on voltage class alone.

Q7: What is the internal board reference number?

The internal board reference is C98043-A7600-L5 . Verify this against the physical board when sourcing.

Q8: What should I verify before ordering?

Always verify the exact part number (6SL3352-6TE37-5AA3), confirm the Motor Module current rating (745 A) matches this CIB variant, check the condition and warranty of the specific unit offered, and ensure the supplier has experience with SINAMICS chassis drive components.