VE4001S2T2B4
Product Name
Schneider Electric Altivar Series Medium-Voltage Power Stack Module (Model: VE4001S2T2B4)
(Model Naming Interpretation:

- VE: Core product line prefix for Schneider’s Altivar “Medium-Voltage Power Electronics” modules, denoting compatibility with Altivar medium-voltage drives (e.g., Altivar 6100 MV, Altivar 7100 MV) and membership in the “VE” family of power conversion components.
- 4001: Hardware configuration code; “400” specifies a power rating of 400 kVA (optimized for medium-voltage motors up to 315 kW at 690 V AC), “1” indicates a single-level power conversion topology (2-level IGBT inverter) for balanced performance and cost-effectiveness.
- S2T2B4: Functional & compliance suffix; “S2” denotes 2-level IGBT switching technology (ideal for 690 V/3.3 kV applications), “T2” confirms enhanced thermal management (liquid-cooled design), “B4” indicates firmware revision 4 (optimized for low harmonic distortion and grid compliance).
- Core Positioning: The “medium-voltage power conversion hub for Altivar drives,” enabling precise speed/torque control of heavy-duty motors while meeting strict grid standards (e.g., IEEE 519 for harmonic distortion)—critical for energy-intensive industrial processes. )
2. Product Description
The VE4001S2T2B4 is a dedicated power stack module developed by Schneider Electric for Altivar medium-voltage variable frequency drives, a flagship platform for controlling high-power motors in mission-critical industrial applications. It integrates 2-level IGBT power conversion, liquid cooling, low harmonic distortion, and comprehensive fault protection to address three key challenges of medium-voltage motor control:
- Efficient Power Conversion: Uses 1700 V IGBT chips (Insulated Gate Bipolar Transistors) in a 2-level topology to convert 690 V AC grid power to variable-frequency AC (0–690 V, 0–50/60 Hz). It delivers a power rating of 400 kVA (315 kW at 0.8 power factor) with an efficiency of ≥97% at full load—minimizing energy losses in applications like mining conveyor belts or water treatment pumps, where 24/7 operation translates to significant energy savings.
- Robust Thermal Management: Features a liquid-


