Description

Technical Overview

The Siemens 6SE6400-7AA00-0AG0 serves as a dedicated cooling unit designed specifically for MICROMASTER 430 and 440 variable frequency drives. This Fan Assembly 2 provides critical thermal management by circulating air through the drive’s heat sink and internal electronics. Because excessive heat remains the leading cause of premature inverter failure, this high-performance axial fan assembly prevents overheating and extends the overall service life of the drive system.

Operational Performance and Engineering

This unit utilizes advanced axial fan technology to deliver a consistent airflow of 45 cubic feet per minute (CFM). Operating at a nominal speed of 2300 RPM, the fan effectively dissipates heat while maintaining a quiet industrial environment with a noise level of only 40 dB. The assembly consumes a mere 5 watts of power, which underscores its energy-efficient design. Furthermore, the robust plastic housing offers an IP20 protection rating, ensuring the internal motor stays protected from solid particle intrusion during heavy-duty operation.

Key Technical Specifications

• Brand: Siemens
• Series: MICROMASTER 430 / 440 Accessories
• Model Number: 6SE6400-7AA00-0AG0
• Part Type: Fan Assembly 2
• Input Voltage: 24 VDC
• Rated Current: 0.2 A
• Power Consumption: 5 Watts
• Rotational Speed: 2300 RPM
• Airflow Capacity: 45 CFM (approx. 76 m³/h)
• Noise Level: 40 dB
• Dimensions: 7.2 x 2.5 x 8 cm
• Weight: 0.45 kg
  Operating Temperature: 0 deg C to 40 deg C

Application and Maintenance

Industrial facilities rely on the 6SE6400-7AA00-0AG0 to maintain operational continuity for their MICROMASTER drive fleets. Maintenance engineers frequently install this assembly as a proactive replacement part to ensure the cooling system remains at peak efficiency. Since the fan features a standardized plug-and-play design, it allows for rapid installation with minimal drive downtime. Its low-vibration operation contributes to the mechanical stability of the entire inverter cabinet, making it an essential component for sectors ranging from water treatment to complex manufacturing lines.