FK3G250-2APS-21 Plug Fan, 230VAC, 250mm, 2200 m3/h

Step beyond conventional fan performance with the FANOVA FK3G250-2APS-21, a 230VAC backward curved plug fan engineered to deliver industrial-strength airflow and pressure in a compact 250mm footprint. This model packs a maximum airflow of 2200 m3/h and a static pressure of 1520 Pa, making it a high-pressure workhorse capable of replacing multiple smaller fans in demanding HVAC and ventilation systems. At its core, the fan integrates a brushless DC EC motor (BLDCEC102) that offers true plug-and-play operation—no external transformer or complex wiring is required, simplifying retrofits of existing AC installations. The motor delivers 500W of power at 3750 RPM while drawing only 2.3A, providing a robust and efficient solution for continuous-duty applications. Built with a glass-fiber reinforced polypropylene impeller, the FK3G250-2APS-21 achieves a lightweight yet chemically resistant structure that excels in harsh environments. The die-cast aluminum endcaps and housing ensure mechanical rigidity and effective heat dissipation, extending the fan's operational lifespan. This model supports variable speed control via 0-10VDC or PWM signals, allowing precise modulation of airflow to match system demand and enhance energy savings. With a noise level of 86.2 dB(A), it is optimized for industrial settings where performance outweighs acoustic finesse, such as cleanrooms, fume hoods, and high-static duct systems. The fan is available with 18AWG leads (210mm) for straightforward electrical integration and meets CE and RoHS standards, reflecting FANOVA's commitment to quality and international compliance. Whether for OEM equipment or aftermarket replacement, the FK3G250-2APS-21 delivers the pressure and flow required to overcome high-resistance filters and long duct runs, proving itself as a reliable upgrade for modern ventilation engineers.

The FANOVA FK3G250-2APS-21 is a precision-engineered backward curved centrifugal plug fan, designed for applications demanding both high airflow and exceptional static pressure capability. The impeller, measuring 250mm in diameter, is molded from polypropylene reinforced with glass fibers (PP+GF), offering an optimal balance of low inertia, chemical resistance, and structural durability for continuous operation. The backward curved blade geometry ensures efficient energy transfer with reduced turbulence, which directly contributes to the fan's ability to achieve a maximum static pressure of 1520 Pa and a peak airflow of 2200 m3/h. This high-pressure performance is driven by an integrated BLDC EC motor (BLDCEC102) with a 102mm rotor diameter, running at 3750 RPM and consuming 500W of electrical power. The EC motor technology employs a permanent magnet synchronous design with electronic commutation, delivering efficiencies above 85% across a wide operating range, which significantly lowers energy costs compared to traditional AC induction motors. The motor is powered by 230VAC (operating range 184V to 270V) and draws a nominal current of 2.3A, making it suitable for standard European and Asian power grids without requiring a step-down transformer. For speed control, the fan accepts both 0-10VDC analog signals and PWM (pulse width modulation) inputs, enabling seamless integration with building management systems (BMS) and third-party controllers. This control flexibility allows the FK3G250-2APS-21 to modulate its airflow from 0 to 100%, providing precise ventilation regulation and eliminating the need for mechanical dampers. The motor is protected with thermal overload protection, locked-rotor detection, and reverse polarity safeguards, all of which are encapsulated in a die-cast aluminum housing that also serves as an effective heat sink. The endcaps and housing are manufactured from die-cast aluminum alloy, ensuring high mechanical strength and corrosion resistance, while the entire motor assembly is rated for continuous duty under ambient temperatures up to 60°C. The fan's bearing system employs dual ball bearings with a calculated L10 life of 50,000 hours at rated load, providing long-term reliability for maintenance-sensitive installations. Electrical interconnection is achieved via a 210mm lead cable (18AWG), which includes tinned copper conductors and a PVC insulation jacket, rated for 300V. The fan unit is dynamically balanced to G2.5 grade per ISO 1940, ensuring low vibration during operation, which is critical for duct-mounted or plenum-mounted configurations. The impeller is secured to the motor shaft with a keyed hub and locking screw, providing a positive mechanical connection that withstands repeated start-stop cycles. While the standard protection rating is IP20 for the motor, the fan can be integrated into housings with higher IP ratings depending on the final application. The FK3G250-2APS-21 is designed and manufactured in accordance with ISO 9001 quality management systems, and it complies with CE (LVD and EMC directives) and RoHS regulations. Rigorous testing includes 100% end-of-line run tests to verify airflow, static pressure, current draw, and vibration levels, ensuring consistent performance from unit to unit. For OEMs, FANOVA offers customization options for cable length, connector types, and control curve programming, allowing the FK3G250-2APS-21 to be tailored to specific system requirements. This fan is an ideal choice for HVAC unit replacements, high-static filter units, electronic enclosure cooling, and industrial process ventilation, where its compact size and high-pressure capability enable downsizing of mechanical spaces while maintaining throughput. The combination of EC motor efficiency, high-pressure head, and robust construction makes the FK3G250-2APS-21 a forward-looking solution for engineers seeking to modernize ventilation systems with minimal layout changes.

AC Plug Fan
Type	FK3G250-2APS-21
Model	BLDCEC102

Ⅰ.When taking out the fan, do not directly lift the fan lead wire. If the lead wire is excessively stressed, the internal welding part may fall off

Ⅱ.Do not plug or unplug the fan lead plug when the fan is running

Ⅲ.If the fan does not work after starting, do not touch the impeller, rotor, or other parts, professional technical personnel are required to inspect the fan to prevent sudden start of the fan from causing hand or other personal injury

Ⅳ.The power line and control line of the fan cannot be connected in reverse, otherwise it will burn out

Ⅴ.Because of the soft start characteristics of the fan, to prevent personal injury, do not touch the impeller or other parts of the fan during powered on or running at low speeds

Ⅵ.The fan needs to be operated and used under the guidance of professional personnel to prevent children from coming into touch this product

Ⅶ.If the power line is worn or damaged, it needs to be returned to the manufacturer for repair or be replaced under the guidance of the manufacturer

Ⅷ.As a part of the fan, it is not recommended to use the motor alone when there is no impeller or loading

1. High Efficiency: The FK3G250-2APS-21 delivers 2200 m3/h at 1520 Pa while drawing only 500W, achieving 30-40% energy savings over equivalent AC fans through FANOVA's BLDC motor technology.

2. Industrial-Grade Impeller: The 250mm galvanized steel sheet impeller resists corrosion, wear and high temperatures, making the fan suitable for harsh industrial environments and corrosive gas streams.

3. Wide Application Range: Suitable for industrial ventilation, dust extraction, HVAC units, agricultural ventilation and new-energy equipment, offering flexible customized solutions (OEM/ODM).

4. Sustainable Development: Low-voltage DC operation enables direct solar and battery integration; recyclable steel impeller and optimized BLDC drive meet eco-friendly requirements with long-term reliability.

5. Easy Installation and Maintenance: Compact 250mm footprint, 0-10VDC/PWM speed control, FG tach output and standard cable make the fan simple to wire, control and service.

Q1:What kind of payments do you support?

A1: For sample order, 100% payment in advance; For batch order, 30% in advance and 70% will be paid before shipping

Q2.Will you provide samples?

A2: Sample is available and can be delivered within 10days

Q3:How can I choose a more suitable model?

A3: We need the information like fan type, quantity, size, material, voltage, air flow and static pressure.

Q4:How can I place the order?

A4:  Usually quote you within 24 hours  after  we get your inquiry. First sign the PI,pay deposit,then we will arrange the production.After finished production need you pay balance. Finally we will ship the Goods.

Q5:About transportation

A5: All available shipping ways could be applied, express shipping, air or sea. Appointed shipping company or our own forwarders all could be used in shipment. Full-way tracking the cargos for you before the goods arrive. 

Q6:How long is the warranty period?

A6: We currently offer 3-year quality guarantee for our own products, and in response to current product problems, our company provides line support, and some customers have been able to improve their products.