DC Backward Curved Motorized Impellers

Description

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.

Features & Benefits of DC Backward Curved Motorized Impellers

Quiet and efficient backward curved impeller
100% speed controllable DC external rotor motor
Inlet cones included
Permissible ambient temperature range: -13 F to 140 F
Available from stock in 24 & 48 VDC
1-10 VDC or PWM motor control
IP42 motor and reverse polarity protection
ErP and RoHS compliant
Capacities to 2,070 cfm
48 VDC products are UL approved

Applications for DC Backward Curved Motorized Impellers

Electronic cabinet cooling
Air filtration
Clean room modules
Military HRAC
Heat exchangers
Pharmaceutical equipment

24 VDC Performance

PART NUMBER	CFM	RPM	WATTS	AMPS	dBA
DC190-2B34-24	425	3300	77	3.2	67
DC220-2B42-24	694	3190	115	4.8	73
DC225-2B65-24	629	2400	78	3.3	65
DC250-2B61-24	773	2300	84	3.5	65
DC280-2B82-24	1026	1710	95	4.0	71
DC315-2B50-24	1238	1820	115	4.8	67

48 VDC Performance

PART NUMBER	CFM	RPM	WATTS	AMPS	dBA
DC190-2B34-48	425	3300	77	1.6	67
DC220-2B42-48	694	3190	100	2.0	73
DC225-2B65-48	629	2400	78	1.6	65
DC250-2B61-48	773	2300	84	1.8	65
DC280-2B82-48	1026	1710	95	2.0	71
DC315-2B50-48	1238	1820	115	2.4	67
DC355-2B97-48	1662	1560	178	3.7	69
DC400-2B93-48	2070	1460	270	4.6	75

For other voltages, consult factory. Actual performance may vary by application.

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Performance Curves & Fan Dimensions

Select Charts / Diagrams tab below

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?