Trane RLY2852 Relay

The Trane RLY2852 Relay is a heavy-duty 24v DPDT Relay engineered for precision switching in industrial and residential HVACR applications. As a genuine OEM Trane replacement part, this double pole double throw relay features a 24V coil designed to manage dual independent circuits simultaneously, making it an essential component for controlling compressors, fan motors, and sequencing valves. Built to withstand the rigors of high-frequency cycling in demanding environments, the RLY2852 utilizes silver-gold diffused contacts to ensure low contact resistance and long-term signal integrity. Techs routinely use this 24V HVAC relay (also identified under part number RLY02852) to interface low-voltage control circuits with high-voltage line loads. Its compact design and standard male quick-connect terminals allow for a direct drop-in replacement, maintaining the original equipment’s performance specifications and operational certifications without the need for field modifications.

Key Benefits:

• Dual-Circuit Control: The Double Pole Double Throw (DPDT) configuration enables the simultaneous management of two separate loads from a single 24V signal.
• Reliable Contact Points: Features silver-gold diffused contacts rated for up to 5 Amps, specialized for preventing oxidation and ensuring consistent conductivity.
• Universal Compatibility: Specifically designed as an OEM fit for Trane and American Standard air handlers, chillers, and furnaces.
• Streamlined Installation: Equipped with standard male spade terminals, facilitating rapid wire-for-wire transfers during service calls.

Common Questions:

What are the terminal ratings for the RLY2852?
This relay typically handles a 5A resistive load at 120/240V, while the 24V coil requires minimal holding current, making it ideal for thermostat-driven control boards.

Can this relay replace a Single Pole Double Throw (SPDT) model?
While a DPDT relay can perform the functions of an SPDT relay by utilizing only one set of poles, you must verify the physical footprint and coil voltage before installation.

What causes a 24V DPDT relay to chatter or fail?
Common failure points include pitted contacts from excessive arcing or "chattering" caused by a drop in the 24V control signal. Using a genuine Trane OEM part like the RLY2852 ensures the coil impedance matches the system's transformer output.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.