FS3G120-2AGL-70 Single Inlet Centrifugal Blower, 230VAC, 120mm, 309 m3/h

The FS3G120-2AGL-70 is a 230V AC-input EC centrifugal blower engineered for applications where energy efficiency and compact power delivery are non-negotiable. This model consumes only 65W while delivering a maximum airflow of 181.85 CFM (309 m³/h) and a static pressure of 1.352 in.wg (338 Pa), making it an ideal drop-in replacement for less efficient AC fans in HVAC, ventilation, and light industrial equipment. At just 2580 RPM and 65 dB(A), it operates quietly enough for office environments, yet its galvanized steel impeller and die-cast aluminum housing ensure long-term durability in demanding conditions. The integrated BLDC motor with EC technology provides built-in speed control and soft-start, eliminating the need for external variable frequency drives. With a wide voltage range of 184-270VAC, it rides through grid fluctuations without performance loss, and its 20AWG cable (172mm) simplifies wiring. Protection features include overcurrent and over-temperature safeguards, and the ball bearing system offers a rated life of 50,000 hours at 50°C ambient. Certified to CE and RoHS, this fan is suited for heat recovery ventilators, refrigeration units, and clean air systems. Choose the FS3G120-2AGL-70 to cut energy costs and reduce carbon footprint without compromising airflow or reliability.

The FS3G120-2AGL-70 is a single-inlet centrifugal blower that pairs a high-efficiency BLDC EC motor with a robust impeller to deliver superior aerodynamic performance at minimal power consumption. The impeller, measuring 120mm in diameter, is fabricated from galvanized steel sheet, providing excellent corrosion resistance and mechanical strength, capable of withstanding high rotational stresses and abrasive particulates. The blade geometry is optimized for forward-curved operation, maximizing airflow (up to 309 m³/h) while generating a static pressure of 338 Pa, sufficient for ducted installations with moderate resistance. The housing and endcaps are precision die-cast aluminum alloy, offering dimensional stability and effective heat dissipation to protect the motor core.

The heart of this blower is the 72mm rotor BLDC motor, which operates on 230VAC input (184-270VAC range) and draws only 0.48A at full load. The EC (electronically commutated) technology integrates a sensorless controller that provides continuous speed regulation via an external 0-10VDC or PWM signal, enabling precise airflow matching to system demand. This intelligent control reduces energy consumption by up to 70% compared to shaded-pole or permanent split capacitor motors, while also offering soft-start to minimize inrush current and mechanical stress. The motor is protected against overcurrent, over-temperature, and locked-rotor conditions, and includes reverse polarity and short-circuit protection. Insulation class is Class B (130°C), and the motor is sealed to IP44, with optional IP55 variations available for harsher environments.

Mechanically, the fan employs dual ball bearings with a rated life of 50,000 hours at 50°C, ensuring maintenance-free operation in continuous-duty applications. The shaft is hardened steel, and the entire assembly is dynamically balanced to G2.5 grade, reducing vibration and noise (65 dB(A) at rated speed). Electrical connectivity is via a 172mm, 20AWG cable with stripped and tinned leads, providing a reliable connection to terminal blocks or connectors. The fan is designed to meet CE and RoHS directives, and production is ISO9001 certified, with each unit undergoing 100% performance and safety testing before shipment. Whether used in heat recovery ventilators, air handling units, or telecommunication enclosures, the FS3G120-2AGL-70 delivers consistent, energy-efficient performance with a compact footprint (dimensions available on request). Its plug-and-play nature—no external controller required—makes it a seamless upgrade for existing AC fan systems, reducing retrofit complexity and total cost of ownership.

AC Single Inlet Centrifugal Blower
Type	FS3G120-2AGL-70
Model	BLDCEC72

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 FS3G120-2AGL-70 delivers 309 m3/h at 338 Pa while drawing only 65W, achieving 30-40% energy savings over equivalent AC fans through FANOVA's BLDC motor technology.

2. Industrial-Grade Impeller: The 120mm 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 120mm 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.