RS PRO Centrifugal Fan, 120 x 120 x 31 mm, 30 CFM, 12 V DC Use this centrifugal fan or blower from RS PRO in your air conditioners and air conveyor systems to recirculate and convey air. It's commonly used in domestic and commercial settings for heating, ventilation and air conditioning (HVAC) systems. The blower is simple to install as it comes with pre-drilled holes. It's also resistant to chemicals and stains, making it easy to wipe clean. For safety in the event of a fire, the frame and impeller are made of polybutylene terephthalate (PBT), which won't ignite when exposed to flames. As it's RoHS (Restriction of Hazardous Substances) compliant, this product contains only trace levels of any harmful materials. Features and Benefits - DC operation - Airflow of 30 CFM (cubic feet per minute) - Ball-bearing type - Blower type - Brushless commutation type - Dimensions of 120 x 120 x 31 mm - Forward direction of curve - Fan speed of 2700 rpm (rotations per minute) - Maximum current of 600 mA - Mounting hole diameter of 3.2 mm - Noise level of 49 dB(A) - Tachometer and temperature sensor output type - Static pressure of 0.49 in/H2O - Supply voltage of 12 V DC - Lead wire termination type