Variable Frequency Drive | Siemens | 6SE6440-2AD25-5CA1 6SE6 440-2AD25-5CA1 MICROMASTER440 without filter

Product Description: Siemens 6SE6440-2AD25-5CA1

The Siemens 6SE6440-2AD25-5CA1 is a compact and high-performance frequency inverter from the MICROMASTER 440 series, rated for 5.5 kW motor output power and supporting single-phase 200–240 V AC input. Designed for applications requiring fast acceleration, precise speed control, and reliable braking, it features an integrated Class A EMC filter and brake chopper, making it ideal for dynamic and sensitive industrial tasks.

Key Features

• 5.5 kW (7.5 HP) motor output power
• Single-phase 200–240 V AC input voltage
• Integrated EMC filter Class A (CISPR 11)
• Built-in brake chopper for dynamic braking capability
• Multiple control modes: V/f, sensorless vector, and vector with encoder
• Built-in PID controller, programmable I/O, and advanced diagnostics
• Modular expandability with communication and encoder modules

Technical Specifications

• Part Number: 6SE6440-2AD25-5CA1
• Input Voltage: 1AC 200–240 V ±10%
• Output Power: 5.5 kW
• Output Current: 27 A
• Frequency Output Range: 0–650 Hz
• Control Modes: V/f, sensorless vector, vector control with encoder
• Brake Chopper: Integrated
• EMC Filter: Integrated Class A
• Digital Inputs: 6 (configurable)
• Analog Inputs: 2
• Relay Outputs: 1
• Analog Outputs: 1
• Protection Class: IP20
• Dimensions (W × H × D): Approx. 173 mm × 246 mm × 195 mm
• Weight: Approx. 6.5 kg
• Operating Temperature: –10 °C to +50 °C (derating may apply above 40 °C)
• Certifications: CE, UL, cULus

Application Areas

• Compact machinery requiring single-phase supply
• High-performance fan and pump control
• Conveyor systems and packaging lines
• HVAC systems with precise speed regulation
• Equipment requiring braking in high-inertia applications

Advantages

• Single-phase input supports deployment where 3-phase power is unavailable
• Integrated braking and EMC filter reduce external components
• High-performance vector control for sensitive and dynamic loads
• Flexible programming and communication expandability
• Siemens-quality reliability in compact and versatile form