ebm-papst EC Backward Centrifugal Fans | High Static Pressure 24V-48V

EC Backward

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Rated Voltage(V)

Size(mm)

Max.Air Flow(m³/h)

100 280 470 4000 2070 2815 8110 195 645 1305 585 1195 524 3120 2405 705 12230 15055 15935 18160 19300 4020 6230 7105 5145 6360 14000 16500 19450 18290 21265 21025 14625 17350 18535 14400 16800 21035 15810 15035 35070 42670 7955 1300 1960 3755 7230 8715 8125 11525 21540 10895 810 1186 1430 4180 5685 5215 6275 1200 2190 815 870 640 735 975 2295 3590 3935 3450 5280 8190 8880 10220 6105 11395 6930 6365 22530 5340 17980 3320 3635 14310 3785 3200 1105 5940 12265 25660 29375 10880 13085 3240 9975 4890 9100 15425 3560 7585 1650 1500 1015 2040 2210 1050 5015 3030 2645 2570 2870 5295 4745 3500 3985 3255 3975 4090 2770 10960 11620 6845 12965 9350 14040 14200 11195 7345 21955 12470 4130 8625 1190 1165 4045 12610 3680 1130 1290 1940 3475 3750 5565 4715 5715 13110 13260 16020 3470 3080 15230 14685 13785 16670 16845 11570 11685 17665 16150 19190 21045 18120 6680 6950 3740 2335 6235 10750 795 1310 1482 1810 2730 3325 4225 4175 10900 12150 17170 14335 761 791 1119 1249 1135 3020 3415 10650 2230 2605 2785 2100 4035 9690 7800 11800 17365 1481 843 853 1196 1233 6 2600 2400 7990 10855 21050 605 1815 5160 10945 3330

Max.Pressure(Pa)

95 1250 595 400 650 280 60 100 1340 1050 200 325 1400 2500 700 840 300 460 450 600 340 240 540 500 470 750 1100 1925 1800 1000 1500 1150 1583 2200 1900 1239 1600 2100 900 1300 920 1125 930 1700 1450 550 794 780 1130 225 800 1030 850 1350 1560 816 1200 526 720 1094 785 830 350 260 320 602 775 420 910 670 950 980 1075 1575 659 925 771 799 536 674 1080 469 335 2000 2550 1680 584 597 513 499 269 490 820 665 1245

Input Power(W)

85 1000 19 16 10 38 14 90 27 45 110 115 350 1160 950 135 275 190 290 490 75 410 360 105 240 400 170 510 205 1320 380 385 100 325 169 750 245 300 1030 460 500 5370 5250 4200 5700 4400 3050 3240 2950 2900 3350 3400 4500 6800 7000 3300 5000 5950 2850 3950 3100 3060 3650 3900 9780 11450 11300 4450 1200 1900 3600 3700 165 352 1050 1650 1300 1700 118 166 57 83 715 660 1230 790 2680 3000 3450 2100 930 940 1180 345 60 243 1800 11000 7700 394 2825 1850 1615 740 3500 2730 34 28 260 82 44 455 51 485 347 470 446 450 2500 2600 2650 2800 1500 4050 4250 178 330 138 168 475 465 502 1140 2930 705 5500 3150 2360 2700 2550 3250 3550 1955 355 2160 4700 208 281 2750 6210 119 6000 1420 520 12000 382

Speed(rpm)

2800 2700 3100 2650 3000 5000 2300 2900 2400 3650 1900 2680 2600 1700 3900 2500 2550 4100 3400 4000 2850 4200 3600 2250 1850 1550 2750 3030 2450 1350 1510 1400 1520 1500 1390 2060 4800 5830 2000 2100 2200 1750 1950 1370 1300 1440 2370 2830 2880 4120 3450 3230 2480 1540 1760 1860 1780 1810 1470 1680 2860 2870 1420 3290 2510 3140 3500 4720 2710 3530 4250 3010 1610 2240 3080 910 3410 2140 3830 2180 4680 2040 2560 1650 2580 2070 3390 2360 2430 1775 1425 2280 1560 1210 2190 2725 2635 2260 1890 1880 3770 2810 1675 1460 2435 1910 2534 3740 2160 4136 3863 2501 2875 2305 2815 1670 3800 3690 2840 2488 2896 3040 2490 3700 5470 5390

Noise(db)

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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)

K3G450-PA31-03/F01 \| ebm-papst 3~380-480V 4500W EC Centrifugal Fan for Air Handling Specified for Air Handling, the ebm-papst K3G450-PA31-03/F01 is a 380-480V EC backward-curved centrifugal fan, offering a listed pressure capability of 1,600 Pa. This enables specification-led selection.	3`380-480	450	14000	1600	4500	2480	78
K3G400-PW03-01 \| ebm-papst 3~380-480V 3400W EC Centrifugal Fan for Air Handling Built for Air Handling, the ebm-papst K3G400-PW03-01 is a 380-480V EC backward-curved centrifugal fan, identified by a documented 3,400 W input rating. This assists electrical and mechanical review.	3`380-480	400	6360	1239	3400	2700	-
K3G400-PA27-71 \| ebm-papst 3~380-480V 3350W EC Centrifugal Fan for Air Handling Intended for Air Handling, the ebm-papst K3G400-PA27-71 is a 380-480V EC backward-curved centrifugal fan, defined by a documented speed of 2,750 rpm. This helps guide installation planning.	3`380-480	400	-	-	3350	2750	-
K3G355-PV70-01/F01 \| ebm-papst 3~380-480V 2900W EC Centrifugal Fan for Air Handling Built for Air Handling, the ebm-papst K3G355-PV70-01/F01 is a 380-480V EC backward-curved centrifugal fan, noted for a documented speed of 3,230 rpm. The data supports model-level evaluation.	3`380-480	355	5145	-	2900	3230	-
K3G310-PH58-02 \| ebm-papst 3~380-480V 2950W EC Centrifugal Fan for Air Handling Suited to Air Handling, the ebm-papst K3G310-PH58-02 is a 380-480V EC backward-curved centrifugal fan, featuring a listed pressure capability of 1,900 Pa. It supports replacement and design review.	3`380-480	310	7105	1900	2950	4000	84
K3G310-AZ88-02 \| ebm-papst 3~380-480V 3240W EC Centrifugal Fan for Air Handling Intended for Air Handling, the ebm-papst K3G310-AZ88-02 is a 380-480V EC backward-curved centrifugal fan, identified by a listed pressure capability of 2,200 Pa. This assists electrical and mechanical review.	3`380-480	310	6230	2200	3240	4100	84
K3G310-PV69-03/F01 \| ebm-papst 3~380-480V 3050W EC Centrifugal Fan for Air Handling Developed for Air Handling, the ebm-papst K3G310-PV69-03/F01 is a 380-480V EC backward-curved centrifugal fan, distinguished by a documented speed of 4,000 rpm. It provides a practical sizing reference.	3`380-480	310	4020	1583	3050	4000	100
K3G560-PB31-03/F02 \| ebm-papst 3~380-480V 4400W EC Centrifugal Fan for Air Handling Built for Air Handling, the ebm-papst K3G560-PB31-03/F02 is a 380-480V EC backward-curved centrifugal fan, featuring a listed airflow of 19,300 m³/h. This supports duty-point selection.	3`380-480	560	19300	1150	4400	1700	75
K3G500-PB33-01/F01 \| ebm-papst 3~380-480V 5700W EC Centrifugal Fan for Air Handling Built for Air Handling, the ebm-papst K3G500-PB33-01/F01 is a 380-480V EC backward-curved centrifugal fan, whose supplied data highlights a listed pressure capability of 1,500 Pa. The rating aids system-fit checks.	3`380-480	500	18160	1500	5700	2250	81
K3G500-PB24-03/F01 \| ebm-papst 3~380-480V 4200W EC Centrifugal Fan for Air Handling Selected for Air Handling, the ebm-papst K3G500-PB24-03/F01 is a 380-480V EC backward-curved centrifugal fan, centered on a listed airflow of 15,935 m³/h. The value helps verify equipment fit.	3`380-480	500	15935	1000	4200	2000	79
K3G450-PB24-01/F01 \| ebm-papst 3~380-480V 5250W EC Centrifugal Fan for Data Center Cooling Intended for Data Center Cooling, the ebm-papst K3G450-PB24-01/F01 is a 380-480V EC backward-curved centrifugal fan, centered on a listed pressure capability of 1,800 Pa. The value helps verify equipment fit.	3`380-480	450	15055	1800	5250	2600	-
K3G450-PB24-01 \| ebm-papst 3~380-480V 5250W EC Centrifugal Fan for Data Center Cooling Selected for Data Center Cooling, the ebm-papst K3G450-PB24-01 is a 380-480V EC backward-curved centrifugal fan, distinguished by a listed pressure capability of 1,800 Pa. The rating aids system-fit checks.	3`380-480	450	15055	1800	5250	2600	80
K3G450-AZ30-01 \| ebm-papst 3~380-480V 5370W EC Centrifugal Fan for Data Center Cooling Designed for Data Center Cooling, the ebm-papst K3G450-AZ30-01 is a 380-480V EC backward-curved centrifugal fan, distinguished by a listed pressure capability of 1,925 Pa. The rating aids system-fit checks.	3`380-480	450	12230	1925	5370	2750	76
K3G280-RR04-H9 \| ebm-papst 3~380-480V 500W EC Centrifugal Fan for Spindle Motor Cooling Developed for Spindle Motor Cooling, the ebm-papst K3G280-RR04-H9 is a 380-480V EC backward-curved centrifugal fan, featuring a documented 500 W input rating. This supports duty-point selection.	3`380-480	280	-	-	500	2700	-
K3G280-RR03-H4 \| ebm-papst 3~380-480V 460W EC Centrifugal Fan for Motor Cooling Selected for Motor Cooling, the ebm-papst K3G280-RR03-H4 is a 380-480V EC backward-curved centrifugal fan, documented with a documented 460 W input rating. The data supports model-level evaluation.	3`380-480	280	-	-	460	2550	-
K3G280-AU11-C3 \| ebm-papst 3~380-480V 1000W EC Centrifugal Fan for Energy Storage Suited to Energy Storage, the ebm-papst K3G280-AU11-C3 is a 380-480V EC backward-curved centrifugal fan, centered on a documented speed of 3,100 rpm. The data helps compare K-series variants.	3`380-480	280	-	-	1000	3100	-
K3G280-AK54-21 \| ebm-papst 3~380-480V 1030W EC Centrifugal Fan for Rail Transit Used in Rail Transit, ebm-papst K3G280-AK54-21 is a 380-480V EC backward-curved centrifugal fan, defined by a listed acoustic value of 61 dB. The value helps verify equipment fit.	3`380-480	280	-	1100	1030	3400	61
K3G250-RR17-H9 \| ebm-papst 1~ 200-277V 300W EC Centrifugal Fan for Spindle Motor Cooling Selected for Spindle Motor Cooling, the ebm-papst K3G250-RR17-H9 is a 200-277V EC backward-curved centrifugal fan, characterized by a documented 300 W input rating. The value helps verify equipment fit.	1~ 200-277	-	-	-	300	3100	-
K3G250-RR03-H4 \| ebm-papst 1~ 200-277V 245W EC Centrifugal Fan for Motor Cooling Designed for Motor Cooling, the ebm-papst K3G250-RR03-H4 is a 200-277V EC backward-curved centrifugal fan, centered on a documented 245 W input rating. The data helps compare K-series variants.	1~ 200-277	250	705	-	245	2900	-
K3G250-PR17-W9 \| ebm-papst 3~380-480V 1160W EC Centrifugal Fan for Renewable Energy Built for Renewable Energy, the ebm-papst K3G250-PR17-W9 is a 380-480V EC backward-curved centrifugal fan, featuring a documented speed of 4,000 rpm. It supports replacement and design review.	3`380-480	250	2405	-	1160	4000	-

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About EC Backward

The EC Backward category represents ebm-papst's comprehensive selection of electronically commutated centrifugal fans with backward-curved impellers. With 357 products ranging from compact 24V units to high-performance 48V models, this is the largest single sub-collection within the ebm-papst catalog.

EC backward curved fans deliver exceptional static pressure and airflow efficiency, making them ideal for applications requiring medium to high pressure — including data center cabinet cooling, inverter drives, industrial machinery ventilation, and telecommunications equipment. The product lineup covers voltage inputs from 24V to 48V and power outputs from 19W up to 325W, with a broad spectrum of impeller diameters to match different system resistance requirements.

Every model in this category benefits from ebm-papst's GreenTech EC technology, which reduces energy consumption by up to 50% compared to conventional AC fans while maintaining precise speed control and extended service life.

How to Select the Right EC Backward

Choosing the right EC Backward starts with the operating point rather than the model name. Define the airflow you actually need in CFM or m³/h and the static pressure the fan must overcome, then look for units whose performance curves pass through that point with a safety margin instead of sitting at the edge of the curve.

Pay attention to the electrical details early. DC fans typically run on 12/24/48 V and integrate easily with control boards, while AC fans suit 115/230 V fixed-speed installations. If the airflow must change with load, choose EC technology with PWM or analog control and, where monitoring matters, a tachometer output so the controller can detect fan failure.

Environment and compliance come next. Match the IP rating to dust and moisture exposure, prefer ball bearings wherever the fan runs hot, vertically or around the clock, and confirm certifications — UL, CE, RoHS — against your destination market. Setting the acoustic limit in dBA early prevents late-stage redesign when the first unit proves too loud.

Finally, compare candidates on total delivery risk, not only on price: confirm stock for the quantity you need, check the lead time for the next batch, and ask for datasheets and dimension drawings before committing. Our team cross-checks curves, dimensions and electrical data for you before quotation There are currently 386 items in this category ready to compare.

Typical Applications and Use Cases for EC Backward

EC Backward appear in almost every sector where heat or stale air must be moved reliably. Typical environments include server rooms and data centers, refrigeration condensers and cold-store evaporators, HVAC air handling units, telecom cabinets, medical and laboratory equipment, welding and CNC machine enclosures, and renewable-energy power cabinets. In each of these settings the fan is a critical component: its failure stops production, damages stored goods or forces expensive emergency downtime.

One recurring scenario comes from control cabinet retrofits: the original fan is obsolete, the mounting hole pattern cannot change, and downtime is measured in hours. We match the old unit against current series by frame size, airflow and noise, propose the closest drop-in alternative, and ship with a datasheet that lets the electrician connect it without redesign.

For cold storage operators the pain is simple: a failed evaporator or condenser fan must be replaced now, not after a six-week import cycle. Matching blade diameter, speed and protection class against stocked equivalents lets us restore cooling capacity within days, which is why replacement supply has become a core part of this category for us.

Whether the project involves new equipment or the replacement of installed ebmpapst units, the workflow is the same: send us the operating point and constraints, and we return a validated selection with datasheets, curves and a clear lead time.

Frequently Asked Questions About Buying EC Backward

Do you have EC Backward in stock and how fast can you deliver?

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 386 products in this category are listed online.

Can you replace my existing EC Backward from another supplier or a discontinued model?

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.

Can I order a single piece or request a sample before a bulk purchase?

Single-piece orders and samples are welcome — many customers validate one unit in their system before committing to volume. There is no minimum order quantity for standard stock models, and the sample price is deducted from the bulk order in most repeat purchases. Tell us the quantity you plan to use and we will quote both scenarios.

EC Backward

EC Backward

By type

By industry

Rated Voltage(V)

Size(mm)

Max.Air Flow(m³/h)

Max.Pressure(Pa)

Input Power(W)

Speed(rpm)

Noise(db)

Stocking Options

Environmental Options

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About EC Backward

How to Select the Right EC Backward

Typical Applications and Use Cases for EC Backward

Frequently Asked Questions About Buying EC Backward

Do you have EC Backward in stock and how fast can you deliver?

Can you replace my existing EC Backward from another supplier or a discontinued model?

Can I order a single piece or request a sample before a bulk purchase?