400 Hz Compact Axial Fans: Aerospace and Defense Ventilation Solutions
400Hz compact AC axial fan
- Code :
- 110VU0160001 NR
- Designation :
- AC 400Hz 88 x 88 x 25 mm Fan
- Range :
- Axial compact 400Hz fan
- Code :
- 110VU0162001 NR
- Designation :
- AC 400Hz 88 x 88 x 25 mm Fan
- Range :
- Axial compact 400Hz fan
- Code :
- 121VY0160001 NR
- Designation :
- AC 400Hz 172 x 150 x 38 mm Fan
- Range :
- Axial compact 400Hz fan
- Code :
- 121VY0162001 NR
- Designation :
- AC 400Hz 172 x 150 x 38 mm Fan
- Range :
- Axial compact 400Hz fan
- Code :
- 125XS0160001 NR
- Designation :
- AC 400Hz 120 x 120 x 38 mm Fan
- Range :
- Axial compact 400Hz fan
- Code :
- 125XS0162001 NR
- Designation :
- AC 400Hz 120 x 120 x 38 mm Fan
- Range :
- Axial compact 400Hz fan
- Code :
- 125XT0160101 NR
- Designation :
- AC 400Hz 120 x 120 x 38 mm Fan
- Range :
- Axial compact 400Hz fan
- Code :
- 125XT0160301 NR
- Designation :
- AC 400Hz 120 x 120 x 38 mm Fan
- Range :
- Axial compact 400Hz fan
- Code :
- 125XT0162101 NR
- Designation :
- AC 400Hz 120 x 120 x 38 mm Fan
- Range :
- Axial compact 400Hz fan
ETRI axial fans are designed to deliver high airflow at low static pressure, meeting the demands of the most demanding industrial applications.
Our range of 400Hz compact axial fans delivers airflow rates of up to 103 L/s, with rotational speeds of up to 3,750 rpm.
They are available in 115V or 200V, in single-phase or three-phase configurations. Selected models are also available in dual-voltage (115V / 200V) versions, providing greater installation flexibility.
A 400Hz power supply reduces the size and weight of electrical equipment—particularly transformers—making it ideally suited for applications where compactness and low weight are critical. It is primarily used in the aerospace, defense, and other onboard applications.
ETRI 400Hz axial fans are specifically engineered to operate on these power systems and deliver reliable performance in the most demanding environments. They can be equipped with a wide range of protective features, including:
- Tropicalized construction for enhanced moisture resistance
- Reinforced protection against shock and vibration
- Salt spray resistance
- Protection ratings up to IP65
- Operating temperature range from –55°C to +125°C
To meet specific application requirements, ETRI also offers fans in additional voltage ratings (24 V, 26 V, 208 V, 380 V, etc.) and for other supply frequencies. Contact us to discuss the solution best suited to your application.
400 Hz Axial Fan Technology for Aerospace and Defense
The ETRI range of 400 Hz compact axial fans has been specifically developed to meet the stringent requirements of civil and defence aerospace, avionics, naval applications, and ground defense systems. Operating on 400 Hz AC power, these fans achieve significantly higher motor speeds than conventional 50/60 Hz designs, delivering an outstanding airflow-to-pressure ratio while substantially reducing the size and weight of the cooling system.
- Dedicated 400 Hz Power Supply
Designed for standard 115 V and 200 V single-phase or three-phase 400 Hz aircraft and defence power networks.
- High Performance in a Compact Design
Optimized aerodynamic performance ensures efficient heat dissipation in confined spaces such as avionics racks, radar systems, critical communication equipment, electronic cabinets, and cockpit systems.
- Rugged Defence-Grade Construction
- Lightweight, precision-cast corrosion-resistant aluminum housings
- Optimized aluminum alloy or high-strength engineering thermoplastic impellers
- Dynamically balanced impellers to minimize vibration
Sealed, lifetime-lubricated ball bearings designed to withstand high acceleration forces and extended operating periods
- Designed for Harsh Operating Environments
ETRI 400 Hz axial fans are engineered to operate reliably under extreme conditions, including
- Wide operating temperature range (typically -55 °C to +125 °C)
- Resistance to thermal shock
- Resistance to salt fog and humidity
- Full tropicalization available as an option
- Compliance with Aerospace and Defense Standards
- Optional versions are available to meet the demanding requirements of defence and aerospace standards, including:
- MIL-STD-704 (aircraft electrical power characteristics)
- MIL-STD-810 (environmental testing)
- International safety and electromagnetic compatibility (EMC) standards
These features make ETRI 400 Hz axial fans an ideal choice for mission-critical cooling applications where reliability, performance, and durability are essential.