Recerse Polarity Centrifugal Fan 310 Backward Curved 230V 2350
EC stands for Electronically Commutated, and it combines AC and DC
voltages bringing the best of both worlds.
The motor runs on a DC voltage, but with a single phase 230VAC or
three phase 400VAC supply. The motor incorporates voltage
transformation within the motor.
The non-rotating part of the motor (stator) is extended to make
room for an electronic PCBoard which includes power transformation
AC to DC, as well as the controls.
EC centrifugal fans with backward-curved blades are used primarily
for intake suction. Since most of the pressure build-up takes place
in the impeller, there is generally no need for a scroll housing.
The centrifugal fans have very good hydraulic efficiency and are
ideally suited for high pressures. The centrifugal fans are used in
applications such as central air conditioning units or building
EC centrifugal fans with forward curved blades always require a
spiral housing. Their characteristic features are a low noise
level, relatively small air flow with a high increase in static
pressure, and space-saving application. Depending on aerodynamic
and geometric requirements, the impellers are arranged in
single-inlet or dual-inlet configurations.
An EC motor (Electronically Commutated) is a brushless, direct
current, external rotor type of motor. In commutation electronics,
an AC voltage is changed into a direct voltage by a commutator.
The motor position is dependent upon voltage supplied via an
inverter module (similar to the principle of a frequency inverter).
The EC commutation electronics are different from a frequency
inverter in that they decide how the motor phases in the stator are
supplied with current (commutation) depending on position, rotation
direction and default.
|2||Bearing System||2 Ball Bearing|
|3||Rated Voltage||230 VAC 50/60 Hz|
|4||Operating Voltage||184~276 VAC|
|5||Starting Voltage||184 VAC|
|6||Input Current||2.5 A|
|7||Input Power||340 W|
|8||Rated Speed||2350±5% RPM|
|9||Rotation||Clockwise, seen on rotor|
|10||Air Flow||1555 CFM (2643 m³/h)|
|11||Static Air Pressure||3.33 inH2O (84.69 mm H2O)|
|13||Speed Control||PWM or 0~10VDC|
|14||Tachometer Output||Open collector, 9 Pulses/Rev|
|17||Noise Level||75 dB(A)|
|18||Lead Wire||UL2464, 3*AWG 20#, L=500mm|
UL2464, 4*AWG 20#, L=500mm
|21||Life Expectance||50,000 hours continuous operating at 40℃|
|23||Operation mode||Continuous operation (S1)|
|24||Type of protection||IP44|
|25||Type of wheel||6|
|26||Dielectric Strength||1500VAC/60Hz, 1 min, Leakage current <=3.5mA|
|27||Net Weight||4300 g|
|28||Packing||Corrugated carton, /carton|