6SE5440-2UD33-0EA1
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The Siemens 6SE6440-2UD33-0EA1, part of the well-regarded MICROMASTER 440 series, is a robust and versatile AC converter designed for industrial automation environments. This variable-frequency drive offers reliable motor control with advanced features such as sensorless vector control and V/f control modes, making it suitable for a wide range of applications. Its ability to handle 3-phase AC input voltage from 380 to 480 V at 47–63 Hz ensures adaptability to diverse power conditions. The drive supports constant torque applications with a rated motor power of up to 37 kW (50 hp) at low overload and 30 kW (40 hp) at high overload, delivering excellent performance and energy efficiency. With an IP20 protection rating and fan cooling, it operates reliably within ambient temperatures from -10 to +50 °C, supporting demanding industrial settings. If you seek a factory-grade solution for motor speed and torque control, the Siemens 6SE6440-2UD33-0EA1 is engineered to meet your automation needs efficiently.
Key Features of Siemens 6SE6440-2UD33-0EA1
- 3-phase AC input: 380–480 V ±10%, 47–63 Hz frequency range
- Rated motor power: 37 kW (LO) / 30 kW (HO) with constant torque output
- Output current: 75 A (LO) / 62 A (HO) supporting heavy-duty motor control
- Advanced control methods including sensorless vector control and linear/quadratic V/f characteristics
- Pulse frequency adjustable up to 4 kHz for smooth motor operation
- Overload capability up to 150% for 60 seconds, ensuring operational flexibility
- Built-in protection features: overvoltage, undervoltage, thermal, ground-fault, and short-circuit protections
- Compact footprint: dimensions 275 x 650 x 245 mm (H x W x D), IP20 enclosure
- Ambient operation range: -10 to +50 °C with fan cooling for reliable performance
- Supports various braking and ramp functions for precise speed control
Technical Specs of 6SE6440-2UD33-0EA1
Explore Siemens 6SE6440-2UD33-0EA1 technical data covering voltage, current, and control parameters to ensure system compatibility.
| Parameter | Specification |
|---|---|
| Input Voltage | 3 AC 380 ... 480 V ±10% |
| Input Frequency | 47 ... 63 Hz |
| Rated Motor Power (LO/HO) | 37 kW / 30 kW |
| Rated Current (LO/HO) | 72 A / 59 A input, 75 A / 62 A output |
| Pulse Frequency | Up to 4,000 Hz |
| Overload Capacity | 140% for 3s (LO), 150% for 60s (HO) |
| Protection Class | IP20 |
| Dimensions (H x W x D) | 275 x 650 x 245 mm |
| Ambient Temperature | -10 to +50 °C |
| Cooling | Fan-cooled |
Applications / Use Case
This Siemens 6SE6440-2UD33-0EA1 is commonly used in industrial automation worldwide. It excels in process control and machine automation applications where precise motor speed and torque regulation are critical. Typical deployments include production line systems, packaging and conveyor operations, and factory control panels. Its robust features and wide power range allow it to handle intensive dynamic loads and harsh environments, making it integral for improving operational efficiency and reducing downtime in manufacturing facilities.
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