NMB Minebea GmbH (UK) announced that it has added the 220R071 intelligent 220mm radial blower to its comprehensive product range, which is suitable for heat-exchanger systems and cabinet cooling. In addition, 190mm, 225mm, 250mm and 280mm diameter blowers are also available in standard 24V and 48V dc versions, all driven by the same generic motor design with a capability to operate from a wide-ranging voltage. The 220R071 delivers up to 1.000 m3/h in a free-air environment. The size of this model is 220mm x 71mm.
The NMB blower range features a brushless dc motor that mechanically protects the drive electronics, eradicating the need to encapsulate PCBs, typically situated close to motor windings and subject to moisture and dust ingress with other manufacturers products. The NMB product features a microprocessor-based drive that allows rapid prototyping of blowers for individual customer applications, ensuring that the customers specified speed demand profile is matched to the application. The feature also permits the use of closed-loop speed control.
The NMB blowers also include options for alarm and fan-fail signals, together with standard speed control by PWM or voltage control. Motor-protection features include overload, locked rotor and low-speed sensing.
