Siemens MICROMASTER 430 VFD 45kW 380-480V 3-Phase Pump Fan Drive 6SE6430-2UD34-5EB0

Siemens MICROMASTER 430 VFD 45kW – E-Size Drive for Large Pump and Fan Systems

The Siemens MICROMASTER 430, model 6SE6430-2UD34-5EB0, delivers 45kW output power with 380-480V 3-phase input. This unfiltered variable torque drive is designed for large-scale pump and fan applications requiring high power output and continuous operation. Built with microprocessor control and IGBT technology, the MM430 series offers specialized pump/fan functions including multi-pump staging, energy monitoring, and dry run detection [9†L13-L19].

Key Specifications:
- Output Power: 45 kW (variable torque / square-law torque)
- Input Voltage: 380-480V AC 3-phase, +10/-10%, 47-63Hz
- Rated Output Current: 86 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): 650mm × 275mm × 245mm
- Weight: Approx. 20 kg
- Filter: Without built-in filter
- Frame Size: E

Typical Applications:
- Large industrial centrifugal pumps
- High-capacity exhaust and supply fans
- HVAC central plant chillers and air handlers
- Large cooling tower fan arrays
- Industrial ventilation systems
- Municipal water/wastewater pump stations

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

E-Size Chassis Information:
The E-size chassis (650×275×245mm) provides enhanced thermal dissipation for continuous heavy-duty operation. Proper clearance of 100mm above and below the drive is required for adequate air circulation.

Why Choose MM430 for Pump/Fan Applications?
The MICROMASTER 430 series is purpose-built for variable torque loads. For centrifugal pumps and fans, power consumption follows the affinity laws (power ∝ speed³). Reducing operating speed by 20% can reduce power consumption by approximately 50%, delivering significant energy savings and fast payback periods of 6-18 months.

Important Notes:
- This product is discontinued. Available ONLY as a spare part [9†L20]
- A BOP (6SE6400-0BP00-0AA1) or AOP (6SE6400-0AP00-0AA1) is required for parameter changes
- SINAMICS G120 series is the recommended successor for new installations

FAQ:

Q1: What is the power range of the MM430 E-size chassis?
A: The E-size chassis covers 37kW-45kW power ratings. The 6SE6430-2UD34-5EB0 is the 45kW model (maximum for E-size). For higher power requirements (55kW and above), step up to the F-size chassis.

Q2: Does this drive include a built-in EMC filter?
A: No. This is the unfiltered version (EB0 suffix). For applications requiring EMC compliance, external filters are available as accessories.

Q3: What is the recommended clearance for this E-size drive?
A: Allow 100mm clearance above and below the drive for proper air circulation. No side clearance is required for side-by-side mounting, but ensure adequate overall cabinet ventilation.

Q4: Can this drive be used for constant torque applications?
A: MM430 is specifically optimized for variable torque loads (pumps, fans). For constant torque applications like conveyors or compressors, the MICROMASTER 440 series would be more suitable.

Q5: Is this product still in production?
A: No. MICROMASTER 430 series has been discontinued with PM300 status effective October 1, 2018 [9†L20]. This drive is available ONLY as a spare part for existing installations while stocks last.

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

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