this is a Type-III Fan Blade

providing the necessary start-torque for heavy blower wheels

Always verify you have 12V DC at the coil before replacing the component

This part is a standard requirement for contractors restoring HVAC system reliability in residential and light commercial equipment

Belimo NRB24-SR Actuator 322055-301 this is a Type-III FanThe Belimo NRB24 SR Actuator is a high performance proportional control solution designed for HVACR valve automation. Operating on a 24V AC DC power supply, this non spring return motor delivers a consistent 45 in lb torque (5 Nm) to manage ball valve assemblies and zone control systems with precision. It utilizes a 2 to 10 VDC control signal, providing accurate modulation for optimized flow control and system efficiency. Built for streamlined field