For rapid field installation

High-Load Capacity: Direct control of inductive loads up to 16 FLA and non-inductive loads up to 20A reduces the footprint of the control panel

meeting stringent RFI and EMI standards for reduced electrical interference

or intermittent pressure switch faults

Siemens Building Technology 331-4811 Actuator 320720-756 For rapid field installationFor veteran technicians managing air handler units and mixing boxes, the Siemens 331 4811 represents the industry standard for pneumatic reliability. This No. 3 Pneumatic Damper Actuator is engineered with a rugged, all metal body designed to withstand the harsh environments of mechanical rooms. Operating on a nominal 8 to 13 psi spring range, this unit provides precise, gradual, or positive actuation of HVAC dampers and air valves. The 331 4811