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Rated for 15A (or 10A depending on specific resistive load standards)
Durable internal Contacts: Designed to handle inductive and resistive loads without premature carbon buildup or sticking
2-wire dampers can be used for standard zoning but will not support the bypass-free ESP feature
Reduced Maintenance: Engineered for smooth operation
Siemens Building Technology 331-2968 Actuator 321894-709 Rated for 15A (or 10AAs a veteran HVACR technician, you know the reliability of the Siemens 331 2968 No. 4 pneumatic actuator. This pneumatic damper actuator is built with a rugged, all metal body designed for the positive or gradual actuation of HVAC dampers in mixing boxes, terminal units, and unit ventilators. Featuring a 4 inch stroke and an effective diaphragm area of 17. 9 sq. in., this unit provides the necessary thrust for precise air volume control. The 8 13 psi
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