Original Siemens Optical Fibre Board Cib Comm. Component 6SL3351-6FE32-6AA1 6SL33516FE326AA1 6SL3 351-6FE32-6AA1

Siemens 6SL3351-6FE32-6AA1 Control Interface Board

The 6SL3351-6FE32-6AA1 is a Control Interface Board for the MICROMASTER 430 PX range.

Siemens identifies this exact spare part as a replacement Control Interface Board for 380–480 V 3AC, 50/60 Hz, 260 A AC Drive, and the same spare-parts lists place it in the MICROMASTER 430 family.

That gives this part a clear role on a product page: it is the internal control-interface board for a defined MM430 PX drive size, not a generic communication board.

Siemens maintenance instructions for the MM430 FX/CIB family also show that the Control Interface Board is a dedicated replacement item within the drive’s internal electronics structure, which fits the way this part is normally serviced.

Product Data

Application Scenarios

This board is suited to MICROMASTER 430 PX repair, especially for 380–480 V, 260 A drive sizes where the installed control interface board needs to be replaced without changing the rest of the drive hardware. Siemens positions the MM430 family mainly for variable-torque applications such as pumps and fans, so this board is especially relevant in those installed environments where MM430 drives remain in service.

Product Replacement Guide

Before replacing 6SL3351-6FE32-6AA1, confirm the full order number, the MICROMASTER 430 PX platform, and the drive’s 380–480 V / 260 A class. The control interface board is tied to a specific drive size, so matching only the family name is not enough. It is also worth checking the installed drive label against the MM430 spare-parts table before removing the existing board.

FAQ

Q1. What type of board is 6SL3351-6FE32-6AA1?
It is a Control Interface Board for MICROMASTER 430 PX drives. Siemens identifies it as the replacement control interface board for 380–480 V, 50/60 Hz, 260 A AC drives.

Q2. What does this board do in the system?
Its role is to provide the drive’s control-interface function within the MM430 PX internal electronics. Siemens maintenance material treats the Control Interface Board as a distinct replaceable drive component.

Q3. What should be checked when selecting 6SL3351-6FE32-6AA1?
Check the exact part number, confirm the drive is MICROMASTER 430 PX, and verify the 380–480 V, 260 A rating class. That combination is the main compatibility key for this board.

Q4. How should the key specification be understood?
The important points are the family, voltage range, and current class: MM430 PX, 380–480 V 3AC, 50/60 Hz, 260 A. These identify the intended drive size for this replacement board.

Q5. How should faults be diagnosed before replacing this board?
Start by separating a control-interface fault from a power-stage fault or a simple terminal-side issue. If the drive size and family match this board and the fault points to internal control behavior rather than the input power section or output stage, the control interface board becomes a stronger candidate.