Siemens 6SE6440-2AC24-0CA1 MICROMASTER 440 Frequency Converter

The 6SE6440-2AC24-0CA1 is a MICROMASTER 440 frequency converter designed for demanding industrial applications requiring high-performance speed and torque control. This unit features an integrated Class A filter and is optimized for 3-phase 200-240V AC supply systems. It provides a constant torque power rating of 4.0 kW with significant overload capabilities (150% for 60 seconds or 200% for 3 seconds) and a squared torque power rating of 5.5 kW. Note that this specific configuration is supplied without an operator panel (AOP/BOP).

Features

• Integrated Filter: Built-in Class A filter for electromagnetic compatibility

• Overload Capability: 150% for 60 seconds; 200% for 3 seconds

• Power Ratings: 4.0 kW (constant torque); 5.5 kW (squared torque)

• Input Requirements: 3-phase AC 200-240V (+10/-10%), 47-63 Hz

• Protection Rating: IP20

• Design: Compact chassis (245 x 185 x 195 mm)

• Operation: Without AOP/BOP (Operator Panel)

Applications

• High-performance conveyor systems

• Pump and fan applications requiring variable torque

• Material handling equipment

• Processing machinery requiring precise torque control

Technical Specifications

Installation Guidelines

• Cooling: Mount the unit vertically on a flat surface. Ensure a minimum clearance of 100 mm above and below the device to facilitate air circulation through the internal heatsink.

• Environment: Ensure the ambient temperature remains between -10 degC and +50 degC. Avoid installation in environments with high humidity or conductive dust.

• Grounding: Ensure a high-integrity connection to the protective earth (PE) terminal to maintain the effectiveness of the internal Class A filter.

• Shielding: To comply with EMC regulations, use shielded motor cables and ensure the shield is bonded to the ground using EMC-compliant cable glands.