EC (Electronically Commutated) fans represent the future of industrial ventilation, delivering up to 70 percent energy savings compared to conventional AC alternatives while providing variable speed control and longer service life. The EC fan category encompasses EC axial fans for high-flow low-pressure applications, EC centrifugal blowers for high-pressure ductwork and filtration, and compact EC fans for space-constrained electronic equipment. All EC fans use permanent magnet brushless DC motors with integrated inverters, enabling direct connection to AC mains power while achieving DC-level efficiency and variable speed capability via PWM, 0-10V, or bus control signals. Leading EC fan manufacturers include ebm-papst (the global EC technology pioneer with GreenTech and AxiEco series), ZIEHL-ABEGG (ZAplus EC range), and Rosenberg (EC fan series). EC fans are now mandatory in many energy-conscious regions for new HVAC installations and are rapidly replacing AC fans in retrofit projects. Hengrui supplies EC fans from all major brands with energy consumption calculators and engineering support to demonstrate the ROI of EC technology adoption.
| Mfr Part # | Rated Voltage(V) | Size(mm) | Max.Air Flow(m³/h) | Max.Pressure(Pa) | Input Power(W) | Speed(rpm) | Noise(db) | |
|---|---|---|---|---|---|---|---|---|
![]() GTW091PBU29E-V007 | Delta 3~380-480VAC 2153/4000W 910mm EC Axial Fan for Data Center AHU Delta GTW091PBU29E-V007 is a 3~380-480 VAC EC axial fan for data-center air-handling units. Its supplied data lists 32,843 m³/h maximum airflow, 504 Pa pressure, 1,260 rpm, and 2,153/4,000 W power. It supports 0-10 V, PWM, and RS485 control, with IP55 protection and maintenance-free ball bearings. |
3~ 380-480 | 910 | 32843 | 504 | 2153/4000 | 1260 | 86.3 | |
![]() GTB023EUG10R-V E1 | Delta Electronics 1~200-240VAC 180W EC Centrifugal Fan for Server Cooling With 1260 m3/h maximum airflow, GTB023EUG10R-V E1 serves server cooling as a nominal 230VAC EC centrifugal fan. Its PDF documents soft start and locked-rotor protection, plus 0-10V/PWM speed control. |
1~200-240 | φ225 x 99 | 1260 | 650 | 180 | 3000 | 72 | |
![]() GTM031FUC20R | Delta Electronics 200-277VAC 530W EC Centrifugal Fan for AHU and Precision AC GTM031FUC20R is a nominal 230VAC EC centrifugal fan for AHUs and precision air conditioning. Its PDF specifies RS485 communication and an alarm relay, with 734 Pa maximum pressure and a 2500 rpm speed. |
200-277 | 310 | 3014 | 734 | 530 | 2500 | 74.5 | |
![]() GTM056PUT34R | Delta Electronics 3~380-480VAC 3100W EC Centrifugal Fan for AHU and Precision AC GTM056PUT34R is listed for three-phase 380-480VAC as an EC centrifugal fan for AHU cooling. Its 1550 rpm speed identifies a slower option than several smaller GTM entries; the supplied size is 560 mm. |
3~ 380-480 | 560 | 14068 | - | 3100 | 1550 | - | |
![]() GTM045PUV36R | Delta Electronics 3~380-480VAC 6000W EC Centrifugal Fan for AHU and Precision AC GTM045PUV36R is listed as a three-phase 380-480VAC EC centrifugal fan for precision AC and AHUs. A 6000 W input is the key supply-sizing figure; the 450 mm entry must be checked against the final assembly drawing. |
3~ 380-480 | 450 | 11485 | - | 6000 | 3570 | - | |
![]() GTW091PUR22EA | Delta Electronics 3~380-480VAC 2200W EC Axial Fan for Server Cooling GTW091PUR22EA offers EC axial fan ventilation for server cooling on three-phase 380-480VAC. A listed 910 mm size and 950 rpm speed distinguish this entry, with 30984 m3/h maximum airflow in the supplied table. |
3~ 380-480 | 910 | 30984 | 155 | 2200 | 950 | 83 | |
![]() GTW080PUU23E | Delta Electronics 3~380-480VAC 3100W EC Axial Fan for Server and Precision Cooling GTW080PUU23E is an EC axial fan listed for three-phase 380-480VAC server cooling. Its test table records 19626 m3/h at 265 Pa and 1200 rpm without a guard, providing a loaded operating point for system comparison. |
3~ 380-480 | 800 | 30326 | 265 | 3100 | 1200 | 78 | |
![]() GTW050EUD19E | Delta Electronics 1~200-277VAC 800W EC Axial Fan for Server and Precision Cooling GTW050EUD19E is listed as an EC axial fan for server and precision cooling on single-phase 200-277VAC. The supplied 497 mm size and 1500 rpm speed accompany a maximum airflow specification of 9046 m3/h. |
1~ 200-277 | 497 | 9046 | - | 800 | 1500 | - | |
![]() GTW091PUU23E | Delta Electronics 3~380-480VAC 3100W EC Axial Fan for Server and Precision Cooling The GTW091PUU23E is an EC axial fan for server and precision cooling, listed for three-phase 380-480VAC. Its PDF records 36185.9 m3/h at free air and 1100 rpm without a fan guard, identifying the test condition. |
3~380-480 | 910 | 36186 | 219 | 3100 | 1100 | 86 | |
![]() GTW091PUR22E | Delta Electronics 3~380-480VAC 2200W EC Axial Fan for Server and Precision Cooling GTW091PUR22E pairs nominal 400VAC EC axial operation with a 950 rpm speed for server and precision cooling. Its PDF lists 30984 m3/h maximum airflow and 0-10V/PWM control for adjusting the fan speed. |
3~380-480 | 905 | 30984 | - | 2200 | 950 | - | |
![]() GTW080PUR23E | Delta Electronics 3~380-480VAC 2200W EC Axial Fan for Server and Precision Cooling An 800 mm EC axial fan format identifies GTW080PUR23E for server and precision cooling. Listed for three-phase 380-480VAC, the model has a 2200 W input specification; exact control interfaces need confirmation. |
3`380-480 | 800 | - | - | 2200 | - | - | |
![]() GTW071PUT23E | Delta Electronics 3~230/400VAC 2700W EC Axial Fan for Server and Precision Cooling GTW071PUT23E is a nominal 400VAC EC axial fan for server and precision cooling. Its PDF specifies an IP54 rating and RS485 Modbus control, with 23134 m3/h maximum airflow at the documented 1250 rpm setup. |
3~230/400 | 710 | 23134 | 259 | 2700 | 1250 | 82 | |
![]() GTWA63HBK21E | Delta Electronics 3~230/400VAC 546W EC Axial Fan for Server and Precision Cooling GTWA63HBK21E uses an EC axial fan design for server and precision cooling on three-phase 230/400VAC. The supplied 850 x 850 x 222 mm assembly is listed at 1250 rpm, with 13780 m3/h maximum airflow. |
3~230/400 | 850 x 850 x 222 | 13780 | 196 | 546 | 1250 | 75 | |
![]() GTM050EUD19E | Delta Electronics 3~380-480VAC EC Centrifugal Fan for AHU and Precision AC GTM050EUD19E is listed for three-phase 380-480VAC operation as an EC centrifugal fan for AHUs and precision air conditioning. Its 500 mm size is documented; further performance details require the exact datasheet. |
3~380-480 | 500 | - | - | - | - | - | |
![]() GTM056PBT34R | Delta Electronics 3~380-480VAC 3100W EC Centrifugal Fan for AHU and Precision AC GTM056PBT34R combines a 565 mm EC centrifugal fan format with three-phase 380-480VAC operation for AHUs and precision AC. Its listed 1550 rpm speed is paired with 14068 m3/h maximum airflow and 3100 W input. |
3~380-480 | 565 | 14068 | - | 3100 | 1550 | - | |
![]() GTM045PBV36R | Delta Electronics 3~380-480VAC 6000W EC Centrifugal Fan for AHU and Precision AC For AHU and precision air-conditioning layouts, GTM045PBV36R offers a listed 460 mm EC centrifugal fan format. The three-phase 380-480VAC model has a 3570 rpm speed specification and 6000 W listed input. |
3~380-480 | 460 | 11485 | - | 6000 | 3570 | - | |
![]() GTM036PBS32R | Delta Electronics 3~380-480VAC 3650W EC Centrifugal Fan for AHU and Precision AC The GTM036PBS32R is an EC centrifugal fan listed for three-phase 380-480VAC in AHU and precision cooling systems. Its 360 mm format is specified at 3650 rpm, with 5060 m3/h maximum airflow in the table. |
3~380-480 | 360 | 5060 | - | 3650 | 3650 | - | |
![]() GTM031PBM22R | Delta Electronics 3~380-480VAC 1250W EC Centrifugal Fan for AHU and Precision AC GTM031PBM22R is an EC centrifugal fan for AHU and precision air-conditioning systems. The supplied fan-wall PDF specifies three-phase 380-480VAC operation and a maximum input of 1250 W for each fan. |
3~ 380-480 | 310 | 3966 | - | 1250 | 2210 | - | |
![]() GTM050HBT34R | Delta Electronics 3~380-480VAC 3100W EC Centrifugal Fan for AHU and Precision AC GTM050HBT34R provides EC centrifugal fan airflow for AHUs and precision air conditioning on three-phase 380-480VAC. A 500 mm format and 1820 rpm speed accompany its listed maximum airflow of 12908.1 m3/h. |
3~ 380-480 | 500 | 12908.1 | - | 3100 | 1820 | - | |
![]() GTM056HBT34R | Delta Electronics 3~380-480VAC EC Centrifugal Fan for AHU and Precision AC A listed 560 mm size defines GTM056HBT34R for AHUs and precision air conditioning. This EC centrifugal fan uses a three-phase 380-480VAC supply; model-specific interface and performance details need confirmation. |
3~ 380-480 | 560 | - | - | - | - | - |
The most reliable way to specify EC FAN is to work from the system, not from the catalog. Measure or calculate the airflow and pressure demand first, add the dimensional limits of the mounting position, and only then shortlist series whose curves cover your operating point with margin.
Electrical matching is the next gate. Confirm the supply voltage — 12 V, 24 V or 48 V DC for compact electronics cooling, 115 V or 230 V AC for equipment and panel cooling — and decide whether you need speed control. EC models accept PWM or 0-10 V signals and report speed through a tachometer output, which makes them the default choice for variable-airflow systems, while AC units remain a cost-effective answer for fixed-speed duty.
Then filter by environment. High ambient temperature, dust or moisture loads dictate the IP rating and bearing choice — ball bearings keep airflow and noise stable over years, while sleeve bearings suit light-duty horizontal mounting. Regulatory needs such as UL, CE and RoHS recognition should be confirmed before the shortlist goes to purchasing, together with a maximum allowed sound pressure level in dBA.
End the process by checking supply, not just specification: confirm current stock, the lead time for follow-up quantities, and obtain datasheets and dimension drawings so the mechanical interface is verified before the PO. Send us your airflow and pressure requirements and our engineers will confirm the best-matched series — 38 products are available in this category today.
The daily work of our sales engineers is built around EC FAN used in data center cooling, refrigeration and cold chain projects, building ventilation, telecom base stations, medical devices and industrial control cabinets — environments where a stopped fan is a stopped business process. That daily exposure to real installations is exactly what we bring back into every selection: not just reading curves, but knowing which models survive dust, heat, continuous duty and restricted service access.
A typical case: an equipment builder needed to replace an aging AC fan inside a control cabinet that could not be taken offline for more than an hour. By cross-referencing the frame dimensions, voltage and airflow curve, we supplied a current-series drop-in replacement with a matching tachometer signal, and the swap was completed during a scheduled maintenance window.
Refrigeration and cold chain customers bring us another pattern: the failed condenser fan is unavailable for weeks. Comparing diameter, speed, bearings and IP rating, we supply a functionally equivalent unit from stock so the system returns to duty the same week — the reason many service companies keep our contact number on file.
From one-piece emergency replacements to volume supply for equipment manufacturers, every Delta enquiry is handled by the same rule: verify the parameters first, then quote — so what arrives on site is the fan the project actually needs.
Datasheets, performance curves, dimension drawings and certification files (UL, CE, RoHS where applicable) are available on request before you buy — we believe a purchase order should follow a verified selection, not replace it. For project tenders we can also provide product comparison tables that put the candidate models side by side on the parameters you care about.
Common series and mainstream voltage versions are normally in stock and can ship within a few working days; specialized or customized variants are produced to order and typically require additional production time. Send us the exact model or the required parameters and we will confirm stock, unit price and the earliest shipment date in one reply Currently 38 products in this category are listed online.
Yes. Replacement supply is one of our core services: we cross-reference the mounting dimensions, voltage, speed and performance curve of your installed unit and propose the closest current-series equivalent. Where the frame or connector differs slightly, we state the difference clearly before you order, so the replacement installs without surprises.
Bag
Bag packaging indicates that a specified quantity of product is packaged by the manufacturer in a bag, sealed pouch, or similar container and sold as a unit without repackaging. It is also used to describe kits/assortments where components are packaged in separate bags according to part number or parametric value, rather than in a compartmentalized box or similar rigid container.