DD Series
The DD Centrifugal Blowers (double suction) and DDD Centrifugal Blowers (quadruple suction with central motor), are designed for conditioning, heating, refrigeration applications, where good air-flow levels, static pressure and low noise level are required.
29 – 60 W
0,17 – 0,46 A
90 – 280 m3/h

Technical specifications
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Single phase, 2-shaded poles, impedance protected motor, built according to the CE mark requirements, in compliance with EN 60335-1 standard, with self-aligning and self lubricating sleeve bearings with big oil reservoir.
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Motor with minimum 130° “B” insulation class.
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Suitable for continuous operation in ambient temperature from -10 °C to +50 °C.
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Electrical connection by 6,3 x 0,8 mm, radial or axial, male faston-type connectors, directly fixed on coil.
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Double suction Ø 67 – Ø 76 mm aluminum impeller with forward curved constant thickness blades and internal reinforcement discs.
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Housing made of pre-galvanized metal sheet, thanks to the high aeraulic efficiency it guarantees an excellent yield in terms of air flow, static pressure and low noise level.
On request
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Version with IMQ – CSV approved motor.
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Quadruple suction version:DDD model (two housings with central motor).
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Motor with different powers and insulation classes: 155° “F” – 180° “H”.
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Supply voltage from 12V to 400V 50/60 Hz.
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Version with dual voltage and/or double speed.
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Electrical connection by axial male faston-type connectors and/or different cable lengths.
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Motor coil winding with IP55 protection.
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Protection against dust and/or humidity.
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Thermal protector or thermal fuse.
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HT version for operation from -30 °C to +100 °C.
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Built in compliance with UL – CSA standards.
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Version fitted with ball bearings.
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Version built to customers design.
Motor position – Radial Faston

Motor position – Axial Faston

Product Identification Code
DD | Series. DD = single. |
R | D = motor central position with double blower: R = motor on the right of the air outlet. L = motor on the left of the air outlet. |
67/76 | Impeller diameter and height. |
P.30 | Motor type. |
T | Thermal protection: T = thermal protector. F = thermal fuse. Blank = impedance protected. |
1 | Coil winding code. |
R | Electrical connection: R = radial faston-type connectors. A = axial faston-type connectors. C = cables. |
DN | Motor position. |
HT | On request: HT = high-temperature version. IV - IM = low temperature with high relative humidity up to 92%. * INC = coil insulation with IP55 protection. * |
BB | On request: BB = ball bearings on motor. |
VR | On request: VR = fitted with cooling fan on motor side. |
230 | Supply voltage. |
50 | Rated frequency. |
* IV version
Impregnated coil through dip-coating using epoxy transparent paint (standard stator coil dip-coating process).
* IM version
Impregnated coil through dip-coating using transparent epoxy paint with silicone applied on contacts at the end of winding, three-pole wire and coil covered by a nylon cap. The coil is not drowned in the resin but visible; caution should be paid when mounting the motor so that the cap open part faces downward to prevent its filling up with condensate.
* INC version
Coil with IP55 protection, the coil is completely drowned into the epoxy resin.

L . Motor on left side

R . Motor on right side
Dimensions
DD


Dimensions
DDD


Characteristic curves
DD 67/76

DD 76/86

DDD 67/76

DDD 76/86
