Taco SR503-EXP-4 Switching Relay 3 Zone Expandable 120 VAC voomi_id_3233 Pressure range of 0-10# with

Pressure range of 0-10# with a 1/4-inch NPT process connection

Ensure reliable refrigerant regulation

C9MPV125L20A2

Includes 2 bolt installation for secure mounting

suitable for delicate adjustments

Taco SR503-EXP-4 Switching Relay 3 Zone Expandable 120 VAC voomi_id_3233 Pressure range of 0-10# withProduct Description The Taco SR503 EXP 4 is a highly efficient, expandable switching relay designed for HVAC applications. Engineered by Taco, this device facilitates the control of up to three heating zones with the option to expand further. Its compatibility with multiple thermostat types alongside a user friendly PC board design makes it ideal for various installation scenarios. Supports 3 heating zones, expandable for larger systems. Equipped with