Mitsubishi FM400TU-2A IGBT Module — 400 A / 600 V 7-in-1 Power Block

T-Series Intelligent Power Module · Fast Ship from EU/US Stock

The Mitsubishi FM400TU-2A is a 7-in-1 Intelligent Power Module (IPM / power block) from Mitsubishi Electric's T-series, rated at 400 A and 600 V. The "-2A" suffix denotes the standard (non-isolated-base) housing of this family. Each module integrates a 3-phase IGBT inverter bridge plus a brake-chopper IGBT and rectifier on a single substrate, which is why the FM400TU-2A is found in mid-power industrial inverters, large servo drives, and AC motor drive cabinets where a compact, fully-characterised power stage is required.

At koeed.com we list the FM400TU-2A as a drive power-stage spare. In service it is the single component most likely to fail in a medium-power inverter: thermal cycling, output short-circuits, and contamination are the usual killers. We hold FM400TU-2A in EU/US bonded stock so that an inverter swap can be turned around in days, not the months that the OEM allocation system sometimes imposes.

Key Specifications

Datasheet Highlights

• 7-in-1 integration (3-phase inverter + brake + 3-phase rectifier) cuts heatsink assembly labour and gives a single-characterised power block — important for EMC and thermal simulation of the cabinet.
• Built-in HVIC + short-circuit and under-voltage protection on every IGBT — failures are converted to a clean fault output, which the host control board can wire into the inverter's alarm chain.
• 400 A / 600 V rating covers the most common medium-power industrial drives (~75 kW to ~110 kW at 380–440 VAC), making it the standard power stage for many late-1990s to 2010s inverters that are still in service.
• Logic-level gate interface means the original control board can drive the replacement module directly — no firmware change is required when swapping like-for-like.
• Thermally matched to the same heatsink footprint as the previous FM400TU-2A series, so a field swap is a mechanical drop-in once the heatsink compound is refreshed.
• Long-term availability means a service bureau can keep a large fleet of inverters running well past the OEM's official end-of-life date — the FM400TU-2A is a KOEED fast-ship item for that reason.

Typical Applications

• Mid-power industrial inverters: power-stage rebuild in 75–110 kW drives used for conveyors, mixers, extruders, and large fans on Mitsubishi, Allen-Bradley, or Siemens drive platforms that share this IPM.
• Servo & spindle drives: main power block in high-power spindle drives for CNC machining centres where the original IPM has reached end-of-life.
• UPS & power-conditioning: 3-phase inverter section of industrial UPS and active-front-end (AFE) cabinets.
• Solar / wind inverter rebuilds: 3-phase IGBT bridge in legacy PV / wind inverters, where the FM400TU-2A is a well-documented replacement for the original power module.
• Hoist & crane drives: main inverter for hoist / long-travel motion on overhead cranes, where the brake-chopper IGBT is critical for regenerated energy absorption during lowering.
• Service & refurbishment bureaus: third-party repair shops that rebuild retired inverters for resale into the secondary market — the FM400TU-2A is a common power-stage part in this trade.

Related Modules & Cross-Reference

An IPM swap is the deepest service you can do on an inverter short of replacing the whole drive. While the cabinet is open, KOEED can ship the FM400TU-2A with the matched gate-driver board, control board, and the I/O it talks to:

Browse the KOEED power modules & IGBTs and Mitsubishi Electric collections to bundle a full inverter rebuild.

Warranty & Authenticity

Each FM400TU-2A is supplied as a brand-new, factory-sealed Mitsubishi Electric Intelligent Power Module with lot code and date code recorded for full traceability. KOEED sources from authorised Japanese and EU distribution, and counterfeits / remarked modules are rejected at incoming inspection. A 12-month limited warranty covers manufacturing defects; KOEED handles return shipping and replacement from EU/US bonded stock at no charge.

Cross-reference: FM400TU-2A · FM400TU-02A · FM400TU/2A · Mitsubishi T-series IPM · 7-in-1 power block · 400 A / 600 V · B2B industrial automation spares. KOEED Automation — independent distributor of industrial automation spare parts, including Allen-Bradley, Siemens, Mitsubishi, Omron, Schneider Electric, FANUC, Yaskawa, Panasonic, and Keyence.