Tekmar 304P Switching Relay - 4 Zones w/ Priority

Product Description

The Tekmar Controls 304P is a switching relay designed for zoned hydronic heating systems. This model connects up to four thermostats and manages circulators to enhance heating efficiency across multiple zones. Zone one can prioritize heating over others and serves as a heat source for an optional indirect domestic hot water tank. The 304P has features to prevent circulator damage when inactive and includes a post-purge function to save energy.

• Connects up to four thermostats
• Zone one priority over zones two through four
• Prevents circulator seizure

Product Highlights

The Tekmar 304P increases heating system efficiency.

Product Information

Standard Information

• Brand: Tekmar Controls
• MPN: 304P

Technical Specifications

• Power Supply: 115 V AC ±10%, 60 Hz
• Transformer Rating: 40 VA, expandable to 80 VA
• Ambient Conditions: Indoor use only, 32 to 122°F
• Enclosure Material: ABS plastic cover, galvanized steel base
• Relay Ratings: 230 V AC, 5 A
• Zone Capacity: 4
• Included Fuses: Two spare fuses
• Dimensions: 11.55 inches x 8.45 inches x 2.8 inches