Taco SR503 Three Zone Switching Relay W/ Priority For Circulators motor It's maintenance-free and easy to

It's maintenance-free and easy to install

suitable for a variety of demanding applications

and pet dander before they reach the main filter

Designed for large industrial refrigeration and air conditioning systems

This actuator operates at one hundred twenty volts and features six-inch leads for easy installation

Taco SR503 Three Zone Switching Relay W/ Priority For Circulators motor It's maintenance-free and easy toProduct Description Taco's SR503 is a three zone switching relay designed for priority control of circulators. It enhances efficiency in hydronic heating systems, making it suitable for various industrial and commercial applications. Three zones with priority control for better heat management. Compact design fits in tight spaces. Adjustable delay settings optimize system performance. Product Highlights This reliable switching relay assures optimal