Siemens DDC 540-100N 1/8HP VAV Terminal Box Controller 24V Load Circuit

The Siemens DDC 540-100N Terminal Box Controller is a compact digital part for precise control of HVAC system terminal boxes, with 1/8 load circuits. It is efficient in regulating airflow and temperature in individual zones and is therefore suitable for Variable Air Volume systems. It is used in commercial HVAC systems and interfaced with actuators, sensors, dampers and other HVAC components for optimization of comfort and energy consumption. Features include on the zone level durable control conditions and the ease of integration with building control systems to enable responsive and adaptive performance and improve occupant comfort.