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V126-3.45 MW® at a glance

Built on the same proven technology as the V112-3.0 MW®, the V126-3.45 MW® IEC IIA/IEC IIB operates on medium-wind sites. Equipped with the industry known structural shell blades, the blades of the V126-3.45 MW® turbine do not weigh more than those of the V112-3.0 MW®. The 126 m rotor enables greater wind capture, which in turn produces more energy at a reduced cost. The result is exceptional profitability in areas with low wind, and new frontiers for wind energy investment.

Options available for the V126-3.45 MW® IEC IIA/IEC IIB

Vestas | Options available for the V126-3.3 MW™ IEC IIIA
  • High Wind Operation
  • Power Optimised Mode
  • Condition Monitoring System
  • Service Personnel Lift
  • Vestas Ice Detection
  • Vestas De-Icing
  • Low Temperature Operation to -30°C
  • Fire Suppression
  • Shadow Detection
  • Vestas Bat Protection System
  • Nacelle Hatch for Air Inlet
  • Aviation Lights
  • Aviation Markings on the Blades
  • Vestas InteliLight™

    Read more about the available options and solutions

4 MW

The Vestas 4 MW platform sets new standards for onshore wind performance within regimes ranging from very strong wind and typhoon conditions to low wind. 


The V126-3.45 MW™ IEC IIA/IEC IIB is designed for medium-wind sites.

+35 GW

The performance and versatility of the 4 MW platform has been proven with more than 35 GW installed in 47 countries since 2010.

The V126-3.45 MW® IEC IIA/IEC IIB

V126-3.45 MW®

The V126-3.45 MW® IEC IIA/IEC IIB is the ideal choice for medium-wind sites. The 126 m rotor enables greater wind capture, which in turn produces more energy at a reduced cost.

View the 4 MW Brochure

Vestas | The V126-3.3 MW™ IEC IIIA turbine

Technical Specifications

Rated power
3,450 kW
Cut-in wind speed
3 m/s
Cut-out wind speed 22.5 m/s
Re cut-in wind speed
20 m/s
Wind class
Standard operating temperature range
from -20°C* to +45°C with de-rating
above 30°C

(Noise modes dependent on site and country)

Rotor diameter
126 m
Swept area
12,469 m2
Air brake
full blade feathering with 3 pitch cylinders

50/60 Hz
full scale
*subject to different temperature options
Type two planetary stages and one helical stage
Hub heights 87 m (IEC IIA/IIB), 117 m (IEC IIA/DIBtS/IIB), 137 m (IEC IIIA/DIBtS), 147 m (IEC IIIA), 149 m (DIBtS) and 166 m (DIBtS)

Height for transport
3.4 m
Height installed (incl. CoolerTop®)
6.9 m
12.8 m
4.2 m
Max. transport height
3.8 m
Max. transport width
3.8 m
Max. transport length
5.5 m
61.7 m
Max. chord
4 m
Max. weight per unit for transportation
70 metric tonnes

AEP Curve

4 MW Platform


Our 4 MW platform is designed for a broad range of wind and site conditions, onshore and offshore enabling you to mix turbines across your site or portfolio of sites, delivering industry-leading reliability, serviceability and exceptional energy capture.

The 4 MW platform was introduced in 2010 with the launch of the V112-3.0 MW®. Over 35 GW of the 4 MW platform has been installed all over the world onshore and offshore making it the obvious choice for customers looking for highly flexible and trustworthy turbines.

Rotor diameters range from 105 to 155 meters and the rated output power is up to 4.2 MW. Using well proven technologies like a full-scale converter, the 4 MW platform meets even the most challenging grid requirements providing excellent energy yield in all wind and weather conditions.

Large Diameter Steel Towers (LDST) are also available to optimise annual energy production on low wind sites.

The 4 MW platform combines Vestas’ proven track record with our continuous efforts to improve and optimise our products, making it the obvious choice for customers looking to combine reliability with performance.

Related Products

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V105-3.45 MW™ IEC IA

The V105-3.45 MW™ IEC IA is the turbine that fits the most severe wind conditions with high turbulence and is especially suited for markets with tip-height restrictions and high grid requirements.

Vestas V112-3.3MW IB Turbine

V112-3.45 MW® IEC IA

The V112-3.45 MW® IEC IA is optimum for high-wind sites

V117-3.45 MW® IEC IB/IEC IIA

The V117-3.45 MW® IEC IB/IEC IIA is a solid choice for medium- and high-wind sites with high turbulence onshore.