the Auburn H4-12-12PK is designed for industrial applications

this precision-machined HVAC blower shaft replacement ensures minimal runout and vibration

Engineered for technical reliability in boiler return piping

Ensure you verify the capacitor requirements and shaft dimensions to maintain OEM performance standards when installing this HVAC replacement motor

For industrial control and HVACR applications requiring reliable power switching

Siemens Building Technology 331-3012 320788-704 the Auburn H4-12-12PK is designedThe Siemens 331 3012 is a heavy duty #6 pneumatic damper actuator designed for high torque applications in commercial HVAC systems. This spring return actuator features a 4 inch stroke and a nominal 3 8 psi spring range, making it an ideal choice for the gradual or positive control of large dampers, centrifugal refrigeration inlet vanes, and fire smoke dampers. Built with a rugged, metal fabricated housing and a 17. 9 sq. in. effective diaphragm area,