Product Overview:
The Siemens MICROMASTER 440 (MM440) 6SE6440-2UD33-7EA1 is a robust and high-performance variable frequency drive (VFD) designed for demanding industrial applications requiring precise speed and torque control. This 37 kW (50 HP) AC inverter operates on a 3-phase 380-480V supply and features advanced sensorless vector control technology, ensuring optimal motor performance and energy efficiency. With an integrated Class A EMC filter, it minimizes electromagnetic interference, making it suitable for a wide range of industrial environments. The MM440 series is renowned for its flexibility, reliability, and comprehensive protection functions, making it an ideal solution for complex motion control tasks and general machinery automation. Invest in the Siemens MM440 to enhance your system's productivity, reduce operational costs, and extend equipment lifespan.
Technical Specifications:
- Part Number: 6SE6440-2UD33-7EA1
- Alternative Part Number: 6SE64402UD337EA1
- Power Rating: 37 kW (50 HP)
- Input Voltage: 3 AC 380-480 V, +10%/-10%
- Input Frequency: 47-63 Hz
- Output Voltage: 3 AC 380-480 V
- Rated Output Current: 72 A
- Overload Capability: 150% for 60 seconds, 200% for 3 seconds
- Integrated EMC Filter: Class A (EN 55011, EN 61800-3)
- Protection Class: IP20
- Cooling Method: Forced air cooling
- Ambient Operating Temperature: -10 to +50 °C (14 to 122 °F)
- Storage Temperature: -40 to +70 °C (-40 to 158 °F)
- Control Type: V/f control, Sensorless Vector Control (SLVC)
- Communication Interfaces: USS protocol (RS485), optional PROFIBUS DP
- Integrated Braking Chopper: Yes
- Dimensions (H x W x D): Approx. 699 mm x 275 mm x 264 mm (27.52 in x 10.83 in x 10.39 in)
- Weight: Approx. 45 kg (99.2 lbs)
- Standards Compliance: CE, UL, cUL, C-Tick
SIEMENS 6SE6440-2UD33-7EA1
1-Year Warranty on Purchased Parts
All products sold by Roc Industrial LLC are covered by a limited warranty for a period of one year from the date of purchase, unless otherwise stated. This warranty covers defects in material and workmanship and does not cover damage caused by misuse, abuse, neglect, or unauthorized repair. Click Here to learn more.
Return and Refund Policy
Returns are accepted within 30 days of purchase for a full refund or exchange. Customer is responsible for return shipping costs.Quick & Convenient Shipping Solutions
Ensuring rapid shipping, all domestic orders are processed within 1 business day with free standard delivery and optional overnight shipping available; international orders are efficiently handled with competitive shipping costs, though customs and taxes are the customer's responsibility. For specific shipping needs or assistance, feel free to contact us.
Repair Your Equipment
Get your equipment back up and running fast with our reliable repair services. 2-Year warranty included. Click Here to start.
Out of Stock? Don't Worry!
Our inventory is always evolving and updating. If the quantity of the item you're interested in is showing as zero, please don't hesitate to contact us. We may have new stock on the way or alternative solutions to meet your needs. Reach out to us for the most current availability and we'll do our best to accommodate your requirements.
















