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Altivar 21

Drives for HVAC applications from 0.75 to 75 kW

End of Commercialisation

Part of Altivar

Frequency inverters for 3-phase asynchronous motors from 0,75 to 75 kW, variable torque applications for building HVAC

Altivar 21
  • Features

    3-phases 200/240 V 380/480 V
    • UL Type 1/IP20 and IP54 up to 75 kW.
    • Speed range: 1:50.
    • Overload : 110 % - 60 s.
    • Integrated EMC filters class A or B.
    • Main communication bus used on the building market: LonWorks, Metasys N2, BACnet, and Apologe FLN.
    • Conformity to the international standards and certifications : CE, UL, CSA, C-Tick...
    • "Reduced-Capacitance" technology: immediately operational and without harmful effect, harmonics treatment without added artifices: THDI < 30 %.
    • Self-adaptation of ramps and motor control supply, to optimize energy consumption.
    • Its remote terminal increases its conviviality : settings of the functions, configurations and parameters downloading and saving.
    • Compact, side by side mounting.
    • Motor and drive protection.
    • Economical design.


    A new breath for your applications!

    Open to the main building communication networks. Compact with an economical design specialy think up  to answer your needs.


    Range dedicated to building HVAC apllications.
    All essential functions for variable torque pumps and fans applications:
    • PI regulator, preset PI
    • Automatical restart, recovery with the flight
    • Skip frequencies
    • Belt breakage detection
    • Overload detection and under load detection.

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