Original Siemens Cib Board 6SL3351-6GE35-0AA1 6SL33516GE350AA1 6SL3351-6GE35-OAA1 6SL3 351-6GE35-0AA1

6SL3351-6GE35-0AA1 | Siemens SINAMICS Control Interface Board — 490A / 380–480V AC / 3-Phase / 50/60 Hz / Power Module Spare

SINAMICS G — High-Power Drive System

The 6SL3351-6GE35-0AA1 is the control interface board for a SINAMICS G series power module rated at 490A — placing it in the large-motor industrial drive category. At 490A and 380–480V AC, the power module drives:

At 380V AC: 490 × 380 × √3 × 0.95 ≈ 307kW of three-phase output power At 480V AC: 490 × 480 × √3 × 0.95 ≈ 388kW of three-phase output power

These power levels serve the largest industrial motor applications in the SINAMICS G range — heavy-duty compressors, large centrifugal pumps in high-head applications, significant fan drives, and large machine tool main drives.

Key Specifications

Control Interface Board — SINAMICS Drive Architecture

In the SINAMICS modular drive system, the power module and its control interface board work as an integrated pair:

Power module: Contains the rectifier, DC bus capacitors, and IGBT inverter — the hardware that converts AC input to variable-frequency AC output. At 490A, the power module contains large IGBT transistor assemblies and substantial capacitor banks.

Control interface board (6SL3351-6GE35-0AA1): Provides the intelligence and communication layer between the SINAMICS control unit and the power module's gate drive and measurement circuits. The control interface board routes PWM switching commands to the IGBT gate drivers, processes current and voltage feedback from the power stage, and provides the fault monitoring that protects the power module.

Without a functioning control interface board, the power module cannot receive switching commands or provide feedback — the SINAMICS drive system reports the power module as absent or faulted.

Application Scenarios

SINAMICS G 490A drive control interface fault: A SINAMICS G power module at 490A develops control interface faults — the drive generates power module communication alarms or the module is reported as absent by the control unit. The 6SL3351-6GE35-0AA1 control interface board is identified. Replacement restores the power module's control interface and returns the drive to service.

Large-motor drive maintenance: A facility operating high-power SINAMICS G drives in the 300–400kW class replaces the 6SL3351-6GE35-0AA1 as part of a planned drive module maintenance programme — renewing the control interface board electronics to prevent age-related failures on critical production drives.

FAQ

Q1: What SINAMICS G power module power ratings use the 6SL3351-6GE35-0AA1 control interface board?

The 6SL3351-6GE35-0AA1 is the control interface board for the 490A SINAMICS G power module. At 380–480V AC, this corresponds to approximately 307–388kW three-phase output power. This is a large-motor power class — confirm from the installed power module's nameplate that its rated current is 490A before ordering this specific board.

Q2: Is 6SL3351-6GE35-0AA1 (variant 0AA1) interchangeable with 6SL3351-6GE35-0AB0 (variant 0AB0)?

Both serve the same 490A / 380–480V AC SINAMICS G power module application. The 0AB0 is the later production variant of the same board. Whether 0AB0 can replace 0AA1 depends on whether the design change between variants affects the power module interface or firmware compatibility. Confirm from the applicable SINAMICS spare parts documentation before fitting 0AB0 in a system requiring 0AA1.

Q3: What SINAMICS alarms indicate a 6SL3351-6GE35-0AA1 control interface board failure?

Control interface board faults in SINAMICS G drives produce alarms related to power module communication — Fault F30001 (hardware interrupt) or similar faults indicating the drive unit cannot communicate with the power module's internal electronics, or the power module is reported as absent despite being physically connected. These differ from overcurrent faults (which indicate motor or wiring issues) and from control unit faults (which affect software functions).

Q4: What safety precautions apply when replacing 6SL3351-6GE35-0AA1 in a 490A SINAMICS G drive?

Isolate and lock out the mains supply. The DC bus in a 490A / 380–480V drive carries approximately 540–680V DC and stores very significant energy in its capacitors — allow the full discharge interval specified in the applicable SINAMICS documentation and verify DC bus voltage is below 50V before access. The control interface board is mounted within the power module's electronics section, adjacent to high-voltage power components. Handle the replacement board with anti-static precautions.

Q5: Does replacing 6SL3351-6GE35-0AA1 require re-parameterising the SINAMICS drive?

Drive parameters are stored in the control unit (CU) of the SINAMICS system — not in the power module's control interface board. Replacing the 6SL3351-6GE35-0AA1 does not affect the drive's stored parameters. After fitting the replacement board, the control unit re-establishes communication with the power module and downloads the relevant configuration. Verify the power module is correctly recognised and the drive operates normally at low load before full production restart.