Siemens MICROMASTER 430 VFD 250kW 380-480V 3-Phase Pump Fan Drive 6SE6430-2UD42-5GB0

Siemens MICROMASTER 430 VFD 250kW – Maximum Power in MM430 Series

The Siemens MICROMASTER 430, model 6SE6430-2UD42-5GB0, delivers 250kW output power with 380-480V 3-phase input. This unfiltered variable torque drive represents the maximum power rating available in the entire MICROMASTER 430 series, designed for the largest pump and fan applications requiring maximum power output [17†L8-L9].

Key Specifications:
- Output Power: 250 kW (variable torque / square-law torque)
- Input Voltage: 380-480V AC 3-phase, +10/-10%, 47-63Hz
- Rated Output Current: 455 A
- Output Frequency: 0-267Hz (for 110kW-250kW range)
- Overload Capacity: 110% for 59s, 150% for 1s
- Protection Class: IP20
- Operating Temperature: 0°C to +40°C
- Dimensions (H×W×D): 1533mm × 326mm × 545mm
- Weight: Approx. 150+ kg
- Filter: Without built-in filter
- Frame Size: G

Typical Applications:
- Largest industrial process pumps (250kW / 335 HP)
- Very high-capacity industrial fans
- Large HVAC central plant chillers (largest)
- Large cooling tower installations (primary)
- Municipal water/wastewater pump stations (main pumps)
- Industrial ventilation systems for the largest facilities

Key Features:
- Built-in PID controller for closed-loop regulation
- Linear V/f control with Flux Current Control (FCC)
- 6 digital inputs, 2 analog inputs, 2 analog outputs, 3 relay outputs
- 15 fixed frequencies, 4 skip frequencies
- BiCo technology for flexible I/O configuration
- Integrated RS-485 Modbus RTU interface
- Optional PROFIBUS-DP communication module
- Flying restart for spinning motor capture
- DC injection braking and compound braking

Pump & Fan Special Features:
- Multi-pump switching (staging up to 3 additional pumps)
- Bypass logic with automatic transfer
- Manual/Auto mode with switchover
- Dry well detection / belt break detection
- Energy saving mode with consumption monitoring
- Sleep mode for idle operation

G-Size Chassis Information:
The G-size chassis (1533×326×545mm) is the largest chassis in the MM430 series. The 250kW model is the maximum power rating available in the G-size chassis, representing the ultimate capability of the entire MICROMASTER 430 series.

Selection Guide:
The 250kW model is the maximum power rating in the MM430 series. Choose 250kW when your pump or fan motor is rated 250kW (335 HP). For power requirements beyond 250kW, the SINAMICS G120 series should be considered.

Why Choose the 250kW Model?
The 250kW model represents the pinnacle of the MICROMASTER 430 series, offering the highest power available in this product family. For applications requiring the maximum power output within the MM430 framework, this is the ultimate choice.

Important Notes:
- This product is discontinued. Available ONLY as a spare part
- A BOP or AOP is required for parameter changes beyond factory defaults
- SINAMICS G120 series is the recommended successor for new designs
- This drive requires significant cooling and careful thermal management

FAQ:

Q1: Is this the largest VFD in the MICROMASTER 430 series?
A: Yes. The 6SE6430-2UD42-5GB0 is the highest power model in the entire MICROMASTER 430 series at 250kW (380-480V input). For higher power requirements, the SINAMICS G120 series is recommended.

Q2: What is the output frequency range for this model?
A: For power ratings 110kW and above, the output frequency range is 0-267Hz [8†L17-L18].

Q3: What is the typical efficiency of this drive?
A: For 110kW-250kW models, efficiency is 97%-98% [8†L19].

Q4: What is the input current requirement?
A: The input current is approximately 455A at full load. Ensure your supply circuit can handle this current with appropriate branch circuit protection.

Q5: Can this drive be used for multi-pump control?
A: Yes. MM430 includes built-in multi-pump staging logic. Using the relay outputs, it can sequence additional pumps (up to 3 total including the drive-controlled pump) based on system demand.

Q6: What cooling requirements does this drive have?
A: The 250kW model has significant power dissipation. Allow 100mm clearance above and below the drive. Forced cabinet ventilation is essential. In high ambient temperatures, consider air conditioning for the control cabinet.

📦 Spare Part – Very Limited Stock | Tech Support | Confirm availability before ordering
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