1.0EV-1.4-4-3270 U4
Axial Cooling Fan
Description
1.0EV-1.4-4-3270 U4 50 Hz axial equipment cooling fan, climatic version U4
1.0EV-1.4-4-3270 U4 is a 50 Hz axial equipment cooling fan, climatic version U4 intended for cooling radio-electronic equipment from a 220 V, 50 Hz supply in moderate-climate indoor installations.
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 1.0EV-1.4-4-3270 U4
This is a metal axial fan for continuous operation in any spatial position. The U4 suffix is part of the climatic designation and must remain in the product marking. One- and three-phase electrical executions are documented for this family.
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 140 m³/h and total pressure is 39 Pa. Supply is 187–242 V at 50 ±2.5 Hz. Power consumption is not more than 15 W for the single-phase execution and 18 W for the three-phase execution; speed is at least 2,600 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, relative humidity is up to 80% at +25 °C and atmospheric pressure is 400–800 mmHg. The fan withstands vibration from 1 to 80 Hz up to 50 m/s² and documented repeated, single and linear shock loads.
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 1.25EV-2.8-6-3270 T4 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 1.0EV-1.4-4-3270 U4; 1.0EV-1.4-4-3270U4; 1,0ЭВ-1,4-4-3270У4. 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 axial equipment cooling fan, climatic version U4
- Primary Designation
- 1.0EV-1.4-4-3270 U4
- Original Cyrillic Designation
- 1,0ЭВ-1,4-4-3270У4
- Alternative Designations
- 1.0EV-1.4-4-3270 U4; 1.0EV-1.4-4-3270U4; 1,0ЭВ-1,4-4-3270У4
- Purpose
- cooling radio-electronic equipment from a 220 V, 50 Hz supply in moderate-climate indoor installations
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
- U4
- Nominal Airflow
- 140 m³/h
- Total Pressure
- 39 Pa (4 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 ±0.1 µF where required
- Power Consumption
- ≤15 W single-phase; ≤18 W three-phase
- Current Consumption
- Not more than 0.07 A
- Rotational Speed
- Not less than 2,600 rpm
- Sound Level
- Not more than 60 dBA
- Dimensions
- 110 × 110 × 42.5 mm
- Weight
- 0.45 kg
- Operating Temperature
- −40 to +70 °C
- Atmospheric Pressure
- 400–800 mmHg
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