1.25EV-2.8-6-3270 T4
Axial Cooling Fan
Description
1.25EV-2.8-6-3270 T4 50 Hz tropical axial equipment cooling fan
1.25EV-2.8-6-3270 T4 is a 50 Hz tropical axial equipment cooling fan intended for cooling radio-electronic equipment in tropical-service installations requiring 280 m³/h airflow.
A fan moves air through a rotating impeller. For this unit, the exact designation, electrical supply, airflow, pressure and mounting data remain decisive.
Full descriptionCollapse description
Function and construction of 1.25EV-2.8-6-3270 T4
The complete designation contains 3270 and the T4 climatic suffix. The former 1270 writing was a catalogue error and is not retained as an alternative designation. The fan is designed for continuous operation in any spatial position.
The fan is a component of the cooled equipment, not a complete ventilation installation. Air-path resistance, correct rotation, unobstructed inlet and outlet and the specified supply affect its installed performance.
Electrical and airflow parameters
Nominal airflow is 280 m³/h at a total pressure of 59 Pa. Supply is 187–242 V at 50 ±2.5 Hz. Power consumption is not more than 25 W for the single-phase execution and 28 W for the three-phase execution; speed is at least 2,700 rpm.
Airflow and pressure refer to documented operating points and should be checked together. A visually similar fan with another suffix, voltage or frequency is not automatically interchangeable.
Operating conditions and inspection
Operating temperature is −40 to +70 °C. Tropical version T4 is rated for relative humidity up to 98% at +35 °C, pressure of 400–800 mmHg and exposure to frost, mould and salt fog. Shock and vibration limits are recorded in the technical details.
Incoming inspection should cover the marking, housing, impeller, connector or leads, mounting points and free rotation. Unusual noise, vibration, overheating, current deviation or reduced airflow requires investigation under approved maintenance documentation.
Related cooling fans and selection
Functionally related catalogue positions include 1.0EV-1.4-4-3270 U4 and 0.63EV-1.4-32-4620. These links support navigation and do not establish electrical, mechanical or installation interchangeability.
Application to a specific aircraft, helicopter, ground unit or electronic block must be confirmed from its illustrated parts catalogue, wiring diagram or approved service documentation.
Identification and ordering
The designation may be encountered as 1.25EV-2.8-6-3270 T4; 1.25EV-2.8-6-3270T4; 1,25ЭВ-2,8-6-3270Т4. These are writing and search variants; execution suffixes and nameplate marks remain significant.
An inquiry should state the complete marking, quantity, required condition, delivery set and documentation requirements. Other units are listed in the Cooling & Ventilation Fans category.
Technical details
- Product Type
- 50 Hz tropical axial equipment cooling fan
- Primary Designation
- 1.25EV-2.8-6-3270 T4
- Original Cyrillic Designation
- 1,25ЭВ-2,8-6-3270Т4
- Alternative Designations
- 1.25EV-2.8-6-3270 T4; 1.25EV-2.8-6-3270T4; 1,25ЭВ-2,8-6-3270Т4
- Purpose
- cooling radio-electronic equipment in tropical-service installations requiring 280 m³/h airflow
All specificationsCollapse specifications
- Air-Moving Principle
- Axial impeller
- Duty / Installation
- Confirm exact execution and installation documentation
- Interchangeability
- Not established; verify electrical and mechanical interfaces
- Documentation
- Product passport and approved equipment documentation
- Climatic Version
- T4, tropical
- Nominal Airflow
- 280 m³/h
- Total Pressure
- 59 Pa (6 kgf/m²)
- Supply Voltage
- 187–242 V
- Supply Frequency
- 50 ±2.5 Hz
- Number of Phases
- 1 or 3 depending on execution
- Phase-Shifting Capacitance
- 1.5 ±0.15 µF where required
- Power Consumption
- ≤25 W single-phase; ≤28 W three-phase
- Current Consumption
- ≤0.12 A single-phase; ≤0.14 A three-phase
- Rotational Speed
- Not less than 2,700 rpm
- Sound Level
- Not more than 65 dBA
- Dimensions
- 140 × 140 × 50.5 mm
- Weight
- 0.8 kg
- Operating Temperature
- −40 to +70 °C
- Relative Humidity
- Up to 98% at +35 °C
Payment & delivery
Orders ship from our hub in Dubai. Partner stock is first transferred to Dubai, then shipped to you.
Dubai stock: 100% before dispatch. Partner stock (Remote stock) and Pre-order: 50% advance payment to start the order and 50% before shipment from Dubai to you.
Availability, lead time, delivery cost and payment terms are confirmed for your order before payment.
Payment & delivery terms