TACO Six Zone Switching Relay W/ Priority - SR506
The TACO SR506 is a six zone switching relay built for industrial and commercial needs. It provides reliable control over various devices through six independent zones, able to handle substantial electrical loads. This centralized control unit is ideal for operations in HVAC systems, industrial automation, and lighting control.
The priority control feature ensures critical devices receive uninterrupted power, even when the system is under stress. It operates efficiently in temperatures ranging from negative forty degrees Celsius to seventy degrees Celsius.
Features
- Six independent switching zones
- Priority control for essential processes
- Wide voltage range from twenty-four to two hundred forty VAC or twenty-four to one hundred twenty-five VDC
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Item Number: SR506
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Brand: TACO
Specifications
| Number of Zones |
: 6 |
| Current Rating: |
10A per zone (AC), 5A per zone (DC) |
| Operating Temperature: |
-40°C to 70°C |
| Enclosure Rating: |
IP20 |
What Our Experts Think
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The Taco SR506 Six Zone Switching Relay with Priority offers precise multi-zone control for hydronic heating systems, making it ideal for residential and light commercial applications.
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It provides six fully independent zones, allowing customized heating management and energy-efficient operation.
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The priority function ensures that a domestic hot water zone gets top priority when needed, improving overall system performance.
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Featuring LED diagnostics, universal thermostat compatibility, and simplified wiring, it’s a reliable, installer-friendly control solution.
Q&A
Q: How many zones does this switching relay support?
A: The SR506 supports six independent zones for flexible heating control.
Q: What is the purpose of the priority zone feature?
A: It ensures domestic hot water or another critical zone receives heat first when demand occurs.
Q: Can it work with any thermostat type?
A: Yes, it’s compatible with 2-, 3-, and 4-wire thermostats, including smart thermostats.
Q: Does it offer diagnostic features?
A: Absolutely—LED indicators provide quick and easy system diagnostics for each zone.
Maintenance Tips
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Check wiring connections periodically to prevent loose terminals or signal issues.
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Label each zone for easy identification during servicing.
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Keep the control box dry and free from dust for reliable performance.
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If a zone doesn’t respond, verify fuse continuity and thermostat signal integrity before replacing components.
