Lock Drives is the international quality leader in drive solutions for greenhouse ventilation and shading. As a pioneer in horticulture, Lock specialises in the development and manufacture of these solutions and has more than 175 years of experience in this field.
Lock drives are characterised by extreme reliability, accuracy and a long service life. Coupled with first-class premium service, Lock gives gardeners the confidence to grow efficiently and cost-effectively.

Lock Drives BV

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• An SPL 30 frequency converter mounted on the motor enables 2 speeds (for EWA 12, also possible for EWA 10) via a simple plug & play circuit.
• better plant protection, as the roof ventilation is quickly closed when rain occurs.
• Longer service life of the drive due to soft start or the prevention of overload breakage in the ventilation system.
• 1~ feed / 3~ motor

SPL 30 Frequency Converter

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SPL 30 Frequency Converter