Product Overview
The Siemens 6SE6440-2UD31-1CA1 is a compact, high-performance 3-phase AC inverter from the classic MICROMASTER 440 series, designed for industrial motor speed regulation. Featuring stable output, strong overload resistance and excellent compatibility, this filter-free inverter is widely applied in fans, pumps, conveyors and general industrial machinery. It supports intelligent automatic control and long-term stable operation in harsh industrial environments, serving as a reliable and cost-effective automation drive solution and maintenance spare part.
Core Product Advantages
- Powerful Load Capacity: 11kW constant torque for heavy-duty continuous operation and 15kW variable torque for light-load equipment; supports 150% overload for 60s and 200% peak overload for 3s, perfectly adapting to instantaneous impact load startup.
- Dual Control Modes: Adopts advanced vector control and V/F control technology, realizing high-precision, low-vibration and smooth motor speed regulation.
- Excellent Compatibility & Expandability: Equipped with complete I/O terminals and built-in RS485 interface, compatible with PLC and various industrial automation systems for seamless data connection and centralized control.
- Safe & Durable: IP20 protection grade, wide working temperature range (-10°C to +50°C), with multiple built-in protection functions (overcurrent, overvoltage, overload, short circuit, overheat) to minimize failure rate and reduce maintenance costs.
- Space-saving Design: Compact integrated structure saves installation space, easy for quick installation and daily maintenance.
Detailed Product Parameters
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Item
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Specification
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Model Number
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6SE6440-2UD31-1CA1
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Series
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Siemens MICROMASTER 440
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Input Voltage
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3AC 380V-480V (±10% tolerance)
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Input Frequency
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47Hz – 63Hz
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Rated Power (Constant Torque)
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11kW
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Rated Power (Variable Torque)
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15kW
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Overload Capacity
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150% for 60s, 200% for 3s
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Control Mode
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Vector Control / V/F Control
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Communication Interface
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Built-in RS485
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Protection Class
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IP20
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Working Temperature
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-10°C ~ +50°C
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Built-in Filter
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No
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Operator Panel
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Not included (BOP/AOP optional)
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Application
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Fans, Pumps, Conveyors, General Industrial Machinery
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Application Scenarios
Widely used for speed control of three-phase induction motors in industrial automation, mechanical manufacturing, water treatment, ventilation and conveying equipment. It is an ideal replacement and maintenance spare part for old industrial drive systems, balancing high stability, energy efficiency and cost performance.
