The Belimo LF24-S US Damper Actuator with shaft and mounting/ wiring diagram, is a high-quality product designed for HVAC and refrigeration systems. Uses a 24 VAC/DC power supply, this damper actuator is reliable and efficient in controlling the movement of dampers in heating, ventilation, and air conditioning systems. The Belimo brand is known for its superior performance and energy savings in the industry, making this product a trusted choice for businesses and industrial applications such as Data Centers. As pictured.