SR503-4 | 3-ZoneSwitchingRelayW/Priority | Taco

Taco SR503-4 3-Zone Switching Relay with PriorityThe Taco SR503-4 is a 3-Zone Switching Relay with Priority designed for controlling multiple zones in hydronic heating or cooling systems. It offers a convenient and efficient way to prioritize and manage the operation of different zones based on user-defined settings. The SR503-4 features: Priority Control: Allows users to set a priority for each zone, ensuring that critical zones receive heating or cooling first. 3 Independent Zones: Controls up to three separate zones, providing flexibility in system design. Switch Type: Employs a reliable relay-based switching mechanism for precise control of zone valves. Compact Size: Designed with a compact and DIN-mountable form factor, saving valuable space in control panels. Versatile Applications: Suitable for use in residential, commercial, and industrial hydronic systems, providing a comprehensive solution for heating and cooling control.