EV-2.8-3660

EV-2.8-3660 High-frequency axial electric fan

EV-2.8-3660 is a high-frequency axial electric fan intended to cool radio-electronic equipment. It is identified by the complete designation, which encodes the fan family and electrical execution; selection by housing diameter or approximate airflow alone is unsafe.

A fan transfers energy to air through a rotating impeller. For this product, that general principle does not replace verification of voltage, frequency, airflow, pressure, mounting and the complete designation.

Function and construction of EV-2.8-3660

The metal housing and impeller form a compact airflow unit that can operate on suction or discharge in continuous duty and in any spatial position. Mounting geometry varies across the EV family: smaller executions use support flanges, while higher-capacity units may also have mounting lugs. The exact installation must follow the drawing and passport.

The fan is a component of the cooled equipment, not a self-contained ventilation system. Performance after installation depends on the resistance of the airflow path, unobstructed inlet and outlet, correct rotation and the electrical supply specified for the exact execution.

Electrical and airflow parameters

Nominal airflow is 280 m³/h at a total pressure of 500 Pa (50 kgf/m²). The fan uses a 200 ±10 V, 400 ±20 Hz, 3-phase supply. Power consumption is not more than 110 w, current consumption is not more than 0.5 a and rotational speed is not less than 10,600 rpm. The sound level is not more than 75 dba.

Free-air airflow, total pressure and static pressure describe different operating points. They must be interpreted together and checked against the equipment passport rather than compared by one number alone.

Operating conditions and inspection

The documented operating temperature is −60 to +100 °C, with relative humidity up to 98% at +35 °C. Continuous operation and intermittent duty with on-time up to 40% of the cycle are permitted within the documented limits. The minimum operating-time figure for this execution is 2,000 h; dimensions are Ø95 × 50.5 mm and weight is Not more than 0.52 kg.

Incoming inspection should cover the marking, housing, impeller, connector or leads, mounting points and free rotation. During operation, unusual noise, vibration, overheating, current deviation or reduced airflow requires investigation according to approved maintenance documentation.

Related cooling fans and selection

Functionally related products include EV-0.2-1540 and EV-2-3660. These links are provided for navigation within the cooling family and do not establish electrical, mechanical or installation interchangeability.

Application to a particular aircraft, helicopter, ground unit or electronic block must be confirmed by its illustrated parts catalogue, wiring diagram or approved maintenance documentation. Category placement alone is not evidence of installation on a specific platform.

Identification and ordering

The designation may be encountered as EV-2.8-3660; EV2.83660; EV 2.8 3660; ЭВ-2,8-3660; ЭВ283660. These are writing and search variants; any suffix, acceptance mark or execution code visible on the nameplate remains significant.

An inquiry should state the complete marking, quantity, required condition, delivery set and documentation requirements. Other models are listed in the Cooling & Ventilation Fans category. Availability and the presence of a passport or test record are confirmed for the offered item.

Product Type: High-frequency axial electric fan
Primary Designation: EV-2.8-3660
Original Cyrillic Designation: ЭВ-2,8-3660
Alternative Designations: EV-2.8-3660; EV2.83660; EV 2.8 3660; ЭВ-2,8-3660; ЭВ283660
Purpose: Cooling radio-electronic equipment
Housing / Impeller: Metal
Airflow Direction: Suction or discharge
Supply Voltage: 200 ±10 V
Supply Frequency: 400 ±20 Hz
Number of Phases: 3
Nominal Airflow: 280 m³/h
Total Pressure at Nominal Airflow: 500 Pa (50 kgf/m²)
Power Consumption: Not more than 110 W
Current Consumption: Not more than 0.5 A
Rotational Speed: Not less than 10,600 rpm
Sound Level: Not more than 75 dBA
Duty: Continuous; intermittent duty up to 40% on-time within documented cycle limits
Operating Position: Any
Operating Temperature: −60 to +100 °C
Relative Humidity: Up to 98% at +35 °C
Minimum Operating Time: 2,000 h
Dimensions: Ø95 × 50.5 mm
Weight: Not more than 0.52 kg
Technical Conditions: TU 3317-003-48414194-2002 or OST 16 0.539.007-74 depending on acceptance

All shipments are carried out from our international warehouse in Dubai (UAE), as well as from our partners’ remote warehouses.

In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.

Remote Stock — items available at our partners’ remote warehouses are supplied within an average of 30–45 business days after receiving 100% prepayment.

Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.

Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.

Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.