Perfectly suited for outdoor use, the R4H Series offers oil-less operation ensuring that the discharge air remains free of contamination. The R4H Series can be mounted in any plane, which provides flexibility when mounting or integrating the blower into an OEM system. In addition, these blowers have very few moving parts and no wearing components, which minimize downtime and helps to lessen operating noise levels.
UL and CSA certified TEFC motor
UL and CSA certified TEFC motors with permanently sealed ball bearings offer increased protection against weather, dirt, and moisture. Permanently sealed ball bearings incorporate polyurea grease, which extends bearing life and offers superior resistance to washout, rust, and corrosion.
IP54 rated motor enclosures
IP54 rated enclosures on the motor make it suitable for outdoor use.
Cast iron blower housing and cover
Cast iron blower housing and cover make for a rugged construction.
Pilot duty overload protection
Motors are equipped with pilot duty thermal overload protection that when properly wired to a motor starter limits the motor winding temperature rise.
Corrosion resistant aluminum impeller promotes extended life.
Variable frequency drive (3 phase motors)
Models with 3 phase motors can be operated with a variable frequency drive for precise speed and flow control.