Reznor 97479 Time Delay Relay - 305055 12S20 H25-60

The Reznor 97479 is a genuine OEM time delay relay designed for use with Reznor gas-fired unit heaters, including Model F, FE, B, and BE series. This H25-60 time delay relay provides precise control of the time delay function in HVAC heating systems, helping to prevent short circuiting and protecting compressors and other critical components by briefly interrupting electrical supply during operation cycles.

Key Features:

• Delay time range: 25 to 60 seconds with typical 1% accuracy
• Operating voltage: 12V AC/DC
• Circuit amp draw: 0.1 amps
• 3-pole configuration available in 2A and 5A versions
• Low current consumption design
• Resistance sensing capability for safety monitoring

This time delay relay is designed for time-delayed control of spark ignition or heating elements in gas-fired furnaces, boilers, and fan-type electric heaters. The relay features reliable performance in industrial and commercial HVAC applications. Direct replacement for part number 52887, also identified as 12S20-305055.