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  • Eveready Group

e400nb (3.5kW) with brake


The Kestrel e400nb is fitted with a mechanical band brake that will stop the Kestrel safely in any wind condition. The brake is activated by a simple manual operation at the base of the tower.

Note: The same wind turbine is available in selected countries without the mechanical brake and is designated the e400n.

Technical Specifications:

Note: Performance may vary with

Battery Charging

Grid Tied

Site Conditions and Weather Pattern

Manufacturers Data

MCS/BWEA Reference

SWCC /AWEA Rating

Maximum Power 3500W (Peak turbine) 2990W -
Rated Power @ 11m/s (24.6mph) 2500 (At battery) 2550W 2.5kW
Rated Annual Energy 4000 3922kWh 3930kWh
Rated sound Level 56dB(A) Lp,60m: 57dB(A) 55.6dB(A)
Cut-in Wind Speed 3.25m/s 3.25m/s 3.25m/s
Generator Type Permanent-magnet Permanent-magnet Permanent-magnet
Overspeed Protection Pitch Control Pitch Control Pitch Control
Rotor Diameter 4m (13.1ft) 4m (13.1ft) 4m (13.1ft)
Number of blades 3 3 3
Blade Material Epoxy Resin Fibreglass Epoxy Resin Fibreglass Epoxy Resin Fibreglass
Tower Top Mass 250kg (551lb) 250kg (551lb) 250kg (551lb)
Tower Height 12-18m (39-59ft) 12-18m (39-59ft) 12-18m (39-59ft)
Tower Type Monopole Monopole Monopole
Output Voltage (Turbine) 48Vdc or 110Vdc * 250Vdc 250Vdc
Controller Type Midnite Solar Power One Aurora Power One Aurora
*Voltage limiter required for 110Vdc Classic 200 PVI-3.6-TL-OUTD-W PVI-3.6-OUTD-US-W
Output Voltage (System) 24/48/60Vdc 230Vac 50Hz 240V 60Hz

*The Kestrel e400nb 3.5kW is a UK (MCS) certified machine and also USA (SWCC) certified. For MCS certified performance refer to the summary report.  For USA (SWCC) certificate click here or read the summary report and view the Consumer Product Label.

Please view the certification documents here.

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