Siemens A5E00825001 IGBT Drive Assembly – 90–132 kW Tested

What Is the A5E00825001 IGBT Drive Assembly?

The Siemens A5E00825001 is a complete IGBT drive and power assembly for MICROMASTER 440 and 430 drives in the 90–132 kW range. It combines the IGD1/R3 gate driver board with the FS300R12KE3-S1 IGBT module (300 A / 1200 V) in a single replacement unit, rather than supplying the driver board alone. The assembly mounts directly onto the drive’s aluminium heatsink and restores the inverter power section in one operation.

The assembly is rated at 210 A continuous and 400 V AC / 650 V DC bus. The 210 A rating represents a deliberate derating of the 300 A-capable IGBT to stay within the MM440/MM430 thermal envelope while retaining margin for the drive’s 150% overload capability. This is a power-stage component, not a Control Unit or I/O board — its condition directly affects whether the drive can pass its power-stack self-check and enable output.

Technical Specifications

Important Compatibility Boundary: The A5E00825001 (210 A) and A5E00825002 (260 A) are both IGBT drive assemblies for the MM440/MM430 high-power range, but they are not interchangeable. The power section physically accommodates only one of the two form factors, and the correct assembly is determined by the drive’s order number (MLFB), not by kW rating alone.

When to Replace the A5E00825001 Assembly

The assembly becomes the primary suspect when the drive reports F0022 (Power Stack fault) and simpler external causes have been excluded. F0022 is a hardware-level protection triggered by DC-link overcurrent, IGBT short circuit, chopper short circuit, earth fault, or an incorrectly seated I/O board.

Diagnostic sequence before concluding the assembly is faulty:

• Check I/O board seating — a permanent F0022 can be caused by an I/O board that is not fully inserted into its socket. This is the simplest check and should come first.
• Isolate the motor and output cables — if F0022 persists after disconnecting the motor leads, the fault is internal to the drive, pointing toward IGBT bridge failure or the drive/power board.
• Inspect for visible damage — burn marks, cracks, or discoloration on the IGBT module or driver board.

If F0022 remains after these steps, the A5E00825001 assembly is the appropriate replacement target. F0022 does not always mean the IGBT assembly is defective — it can also originate from the I/O board, output-side short circuit, or earth fault.

Compatibility & Verification

Before ordering, confirm the following:

• Drive MLFB — the full order number on the MM440/MM430 nameplate. The power section accepts only one of the two form factors (210 A vs. 260 A); the MLFB determines which.
• Original assembly label — confirm the existing assembly reads A5E00825001. Do not rely on the drive’s kW rating alone, as the same power range can carry different assembly variants.
• Fault history — confirm F0022 persists after I/O board seating and output isolation checks.
• If uncertain, send a photo of the drive nameplate and the original assembly label for review before purchase.

Frequently Asked Questions

Is A5E00825001 interchangeable with A5E00825002?

No. The A5E00825001 is rated 210 A (90–132 kW), while the A5E00825002 is rated 260 A for higher-power models. The power section physically fits only one of the two, and the correct part is determined by the drive’s MLFB.

Does F0022 always mean the IGBT assembly needs replacement?

No. F0022 is a power-stack fault that can be triggered by an incorrectly seated I/O board, an output-side earth fault, or a short circuit in the motor cables. Check these first before replacing the assembly.

Is this just the gate driver board, or does it include the IGBT?

It is a complete assembly — the IGD1/R3 gate driver board and the FS300R12KE3-S1 IGBT module are supplied together, not as separate components