Durable 24V Operation Built for safety and compatibility with standard low-voltage HVAC control systems. Operates on 24V, making it a reliable and energy-efficient component for your heating setup.
Trusted Performance & Durability Built to the same high standards you expect from the Taco brand. This relay ensures long-lang, reliable performance to manage your heating zone season after season.
Precise and Reliable Single Zone Heating Control
Upgrade or repair your hydronic heating system with the SR501-4 Switching Relay. Engineered as a direct replacement for the industry-standard Taco SR501, this relay restores precise control to a single heating zone, ensuring efficient and comfortable heat delivery to radiators, baseboards, or convectors.
Effortless Replacement for Continuous Comfort
A failing relay can leave a room cold and uncomfortable. The SR501-4 is designed for a hassle-free swap, minimizing downtime and restoring heat quickly. With its familiar layout and clear terminal design, installation is straightforward, getting your system back to optimal performance with minimal effort.
Built for Safety and Long-Term Reliability
Operating on low-voltage 24V power, this relay integrates safely with your exing system controls. Constructed with quality components, it is built to handle the demands of daily use, providing a dependable solution that protects your comfort and your investment.
The Smart Choice for System Maintenance
Whether you're a professional HVAC technician or a knowledgeable homeowner, the SR501-4 is the smart, cost-effective choice for repairing a single-zone heating system without replacing the entire control panel. Ensure your heating system operates reliably when you need it most.
Ideal for Use In:
Residential Hydronic Heating Systems
Replacement for faulty Taco SR501 relays
Single Zone Control for Baseboard Heaters or Radiators
Boiler Control Systems