Siemens MICROMASTER 430 VFD 55kW 380-480V 3-Phase Pump Fan Drive 6SE6430-2UD35-5FB0

Siemens MICROMASTER 430 VFD 55kW – F-Size High-Power Drive for Large Pump and Fan Systems

The Siemens MICROMASTER 430, model 6SE6430-2UD35-5FB0, delivers 55kW output power with 380-480V 3-phase input. This unfiltered variable torque drive is designed for high-power pump and fan applications requiring continuous operation in demanding industrial environments [1†L7-L10].

Key Specifications:
- Output Power: 55 kW (variable torque / square-law torque)
- Input Voltage: 380-480V AC 3-phase, +10/-10%, 47-63Hz
- Rated Output Current: 110 A
- Output Frequency: 0-650Hz
- Overload Capacity: 110% for 60s, 140% for 3s
- Protection Class: IP20
- Operating Temperature: -10°C to +40°C
- Dimensions (H×W×D): 850mm × 350mm × 320mm
- Weight: Approx. 56 kg
- Filter: Without built-in filter
- Frame Size: F

Typical Applications:
- Large industrial process pumps
- High-capacity exhaust and supply fans
- HVAC central plant systems
- Large cooling tower installations
- Municipal water/wastewater pump stations
- Industrial ventilation systems

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 and DeviceNet modules
- Flying restart function
- 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

F-Size Chassis Information:
The F-size chassis (850×350×320mm) is designed for high-power applications in the 55kW-90kW range. The larger enclosure provides superior thermal dissipation for continuous heavy-duty operation.

Energy Saving Benefits:
For centrifugal pumps and fans, the affinity laws dictate significant energy savings at reduced speeds. In typical industrial applications, replacing fixed-speed operation with VFD control achieves energy savings of 20-50%, with payback periods of 6-18 months.

Important Notes:
- This product is discontinued. Available ONLY as a spare part [10†L20]
- A BOP or AOP is required for parameter changes
- SINAMICS G120 series is the recommended successor for new designs

FAQ:

Q1: What is the power range of the MM430 F-size chassis?
A: The F-size chassis covers 55kW-90kW power ratings. This 55kW model is the entry point to the F-size family, with 75kW and 90kW models also available in the same chassis.

Q2: Does this drive require external cooling?
A: The F-size chassis is designed for natural air convection cooling. However, ensure 100mm clearance above and below the drive for proper airflow. If mounted in a sealed cabinet, forced ventilation may be required.

Q3: 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.

Q4: What communication options are available?
A: Standard RS-485 Modbus RTU on terminal 14-15. Optional PROFIBUS DP module (6SE6400-1PB00-0AA0) and DeviceNet module are available as accessories.

Q5: What is the typical lifespan of this drive?
A: With proper installation and maintenance (clean environment, adequate cooling, stable power supply), MM430 drives typically operate reliably for 10-15 years.

📦 Spare Part – Limited Stock | Tech Support | Confirm availability before ordering
Contact us for pricing and availability.
 

FAqS