Siemens Building Technology 331-2963 Actuator 321042-401 Enhanced Safety: Built-in pressure tap

Enhanced Safety: Built-in pressure tap ensures accurate draft-proving switch performance

Its ODF connection ensures a leak-proof

Key Benefits of the 950-0264-03 Kit OEM Precision: Genuine Copeland replacement motor ensures exact electrical and mechanical compatibility with original equipment specifications

the internal "canoe" may be seized

Siemens Building Technology 331-2963 Actuator 321042-401 Enhanced Safety: Built-in pressure tapThe Siemens 331 2963 is a rugged, No. 4 pneumatic damper actuator designed for reliable control in high demand HVAC and fire smoke systems. Built with a durable metal fabricated body, this piston type actuator features a 4 inch stroke and a nominal spring range of 8 to 13 psi, making it ideal for the gradual or positive actuation of dampers in ventilating systems and mixing boxes. This specific model is configured for a front mount installation using