123VO-9-2

Cooling function and operating principle

An axial fan moves air mainly parallel to the rotation axis. In an equipment installation, the airflow removes heat from electronic assemblies and passes it through the designed duct, enclosure or ventilation path. Actual system performance depends on intake and outlet resistance, mounting clearances, rotation direction and the condition of the impeller.

For 123VO-9-2, the confirmed catalogue airflow is 1,300 m³/h and full pressure is 100 kgf/m². These are model-specific values, not generic figures borrowed from another member of the VO family. Its 1,300 m³/h rating places it between the compact 25VO-5-2 and the higher-output 220VO/242VO executions in the same documented family.

Electrical supply and rated performance

The documented supply is 220 ±11 V AC at 400 ±20 Hz. Rated power consumption is Not more than 540 W, current consumption is Not more than 2.50 A, and rotational speed is Not less than 7,500 rpm. The sound level is Not more than 82 dBA. The complete electrical circuit, phase sequence, protective devices and connector arrangement must be checked in the applicable passport or equipment documentation before power is applied.

The listed dimensions are 196 × 201 × 192 mm. They are included for exact identification and installation planning, but they do not replace a dimensional drawing. Reliability and storage limits must be confirmed from the passport for the supplied execution.

Installation and maintenance checks

Before installation, inspect the housing, impeller, mounting points, electrical terminals or connector, protective elements and all markings. Confirm free rotation without energising the unit and check that the intended airflow direction matches the equipment duct. Never apply the supply values of a similar-looking model when the full designation has not been verified.

During maintenance, typical checks include contamination, unusual noise, vibration, overheating, current consumption and reduced airflow. Acceptance limits and test methods are determined by the product passport and the documentation for the serviced equipment. Disassembly, lubrication or replacement of an internal component is performed only where the approved maintenance data permits it.

Identification and ordering

Search and identification forms include 123VO-9-2; 123VO9-2; 123 VO 9 2; 123ВО-9-2. Cyrillic and Latin letters can look identical, but they are different characters in databases and search systems. The nameplate should therefore be compared character by character, including suffixes, punctuation and the technical-standard reference.

An enquiry should state the exact execution, required condition, delivery set and documentation. If available, add photographs of the nameplate, connector and mounting face. This prevents selection based only on airflow, voltage or body size and helps distinguish related products that have similar ratings.

Related cooling equipment

Other equipment-cooling products are listed in the Cooling and Ventilation Fans category. Closely related catalogue positions include 220VO-6-2 and 25VO-5-2. These links support navigation within the same functional group and do not claim that the products are interchangeable.

For a supply request, Aviamisto can confirm the offered unit’s marking, available documentation, delivery set and current commercial terms. Final suitability remains subject to the applicable equipment manual, installation drawing and product passport.