DC backward curved motorized impellers are superbly crafted and precision balanced air-moving devices, featuring superior performance and compact design. DC impellers are completely speed controllable. Motor and impeller are located directly in the air stream, providing excellent heat dissipation and efficient motor cooling. By combining the efficiency of a backward curved airfoil wheel with the advanced technology of a DC external rotor motor, new standards for air performance and sound levels have been achieved.
Direct current (DC) external rotor motors are typically designed to run on 24 or 48 VDC supply; performance may vary accordingly. Speed control is much simpler with DC, when compared to AC motorized impellers, because there is no need for an external device. The speed of DC motorized impellers can be controlled using either a 1-10 VDC signal or through pulse-width modulation (PWM).
Suitable for either supply or exhaust use, DC impellers are an excellent choice for applications where transient electrical noise is prohibited.
For other voltages, consult factory. Actual performance may vary by application.
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Continental Fan offers a complete line of axial and centrifugal motorized impellers with AC, DC, or EC high efficiency motors. Do you want to learn more about motorized impellers?
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