Siemens MICROMASTER 440 VFD 0.75kW 200-240V 3-Phase 6SE6440-2UC17-5AA1

Siemens MICROMASTER 440 VFD 0.75kW – Maximum A-Size Vector Drive for Compact Applications

The Siemens MICROMASTER 440, model 6SE6440-2UC17-5AA1, delivers 0.75kW output power with 200-240V 3-phase input. This unfiltered drive represents the maximum power rating available in the compact A-size chassis (173×73×149mm) within the MM440 series. Note that this model requires three-phase input and does not support single-phase operation [9†L9-L10].

Key Specifications:
- Output Power: 0.75 kW (constant torque) / 1.0 HP
- Input Voltage: 200-240V AC 3-phase, +10/-10%, 47-63Hz
- Input Current: 2.9 A [10†L22]
- Rated Output Current: 3.9 A [10†L21-L22]
- Output Frequency: 0-650 Hz
- Overload Capacity: 150% for 60s, 200% for 3s [10†L24]
- Control Methods: Linear V/f, Quadratic V/f, Sensorless Vector, Flux Current Control [10†L22-L23]
- Protection Class: IP20
- Operating Temperature: -10°C to +50°C [10†L25]
- Dimensions (H×W×D): 173mm × 73mm × 149mm
- Weight: 2.27 kg (5.00 lbs) [10†L20]
- Filter: Without built-in filter
- Frame Size: A

Typical Applications:
- Small industrial machinery main drives
- Light-duty conveyor systems
- Small pump and fan control
- Packaging equipment
- Small mixer drives
- Automated sorting equipment

Key Features:
- Sensorless vector control for superior low-speed torque [10†L22-L23]
- Linear and Quadratic V/f control with FCC
- Built-in PID controller
- 3 programmable relay outputs [10†L29]
- Integrated RS-232 and RS-485 interfaces [10†L30]
- Built-in braking chopper
- Multiple braking options: DC, compound, and dynamic braking [10†L29-L30]
- Adjustable pulse frequency: 2-16 kHz [10†L28]
- Flying restart function
- Protection: Overvoltage, undervoltage, ground fault, motor overtemperature, inverter overtemperature [10†L26-L27]

Power Density Leadership:
The 0.75kW model achieves the highest power output within the MM440 A-size chassis. At just 73mm width and 173mm height, this drive delivers 0.75kW of vector-controlled output, providing exceptional power density for applications where cabinet space is at a premium. The drive's small footprint allows installation in tight machinery enclosures where larger drives cannot fit.

Important Notes:
- This product is discontinued. Available ONLY as a spare part
- This model requires 3-phase input only (single-phase not supported)
- An operator panel (BOP or AOP) is required for parameter changes beyond factory defaults
- For new installations, Siemens recommends the SINAMICS G120 series

FAQ:

Q1: What is the difference between this model and the 0.55kW A-size model?
A: The 0.75kW model delivers 30% higher output current (3.9A vs 3.0A) while maintaining the same compact A-size footprint. However, the 0.75kW model requires three-phase input only, whereas the 0.55kW model can operate on single-phase input.

Q2: Does this model include EMC filters?
A: No. This is the unfiltered version. Optional EMC filters are available as accessories for compliance with EN55011 Class A (industrial) or Class B (residential/commercial) emission standards.

Q3: What is the overload capacity?
A: 150% for 60 seconds and 200% for 3 seconds [10†L24]. This allows the drive to handle short-term surges such as starting heavy loads or temporary overload conditions without tripping.

Q4: Can I parallel this drive with others for higher output?
A: No. MM440 drives do not support parallel operation. For higher power requirements, select the appropriate larger power model within the MM440 series.

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

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