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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.

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Aixal Fans (14)
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Mfr Part #	Rated Voltage(V)	Size(mm)	Max.Air Flow(m³/h)	Max.Pressure(Pa)	Input Power(W)	Speed(rpm)	Noise(db)

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	-	-	-	-	-
GTM063PBV41R \| Delta Electronics 3~380-480VAC 5200W EC Centrifugal Fan for AHU and Precision AC GTM063PBV41R is an EC centrifugal fan for AHUs and precision air conditioning, listed for three-phase 380-480VAC. Its 630 mm size and 20970 m3/h maximum airflow distinguish the 1900 rpm assembly.	3~ 380-480	630	20970	-	5200	1900	-

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