Siemens 6SE6440-2UC25-5CA1 MICROMASTER 440 Frequency Inverter

The 6SE6440-2UC25-5CA1 is a high-performance, three-phase frequency inverter designed for precise motor control in industrial drive systems. This unit provides variable frequency output for AC motors, supporting a nominal power rating of 5.5 kW for constant torque applications and up to 7.5 kW for square-law torque applications. It is engineered for integration within control cabinets to regulate motor speed and torque across various automated production processes.

Features

• Supports 3-phase input voltage range of 200-240 V AC.
• Constant torque rating: 5.5 kW.
• Square-law torque rating: 7.5 kW.
• Overload capacity: 150% for 60 seconds, 200% for 3 seconds.
• Output frequency range up to 650 Hz.
• Compact design with IP20 degree of protection.
• Operating temperature range: -10 degC to +50 degC.

Applications

• Conveyor systems and material handling.
• Centrifugal pumps and fan control.
• Industrial mixers and agitators.
• Machine tool spindles.
• Textile machinery drives.

Technical Specifications

Installation Guidelines

• Mounting: The unit is intended for vertical installation within a ventilated control cabinet. Ensure sufficient clearance above and below the inverter to facilitate airflow.
• Environment: Protect the device from dust, moisture, and corrosive gases. Ensure the ambient temperature does not exceed 50 degC.
• Wiring: Ensure all power cables are sized according to the nominal output current of 22 A. Use shielded cables for motor connections to minimize electromagnetic interference (EMI).
• Grounding: A solid, low-impedance ground connection is required for both safety and noise suppression. Connect the drive chassis to the system protective earth (PE).
• Cooling: This unit relies on forced air cooling; ensure that the internal fans are unobstructed and that the cabinet environment is managed to prevent overheating.