Description
The Rheem-Ruud PD425118K is an OEM-grade sequencing relay engineered to deliver precise, staged control of heating elements in Rheem and Ruud electric heating systems. Designed as a direct replacement component, this relay ensures that heating elements are energized in a controlled sequence — reducing electrical demand spikes, extending system life, and maintaining consistent comfort.
Key Features
- OEM Rheem-Ruud replacement sequencing relay for accurate fit and function
- Provides staged activation of electric heating elements to manage load demand
- Helps prevent simultaneous element energization, protecting electrical circuits
- Designed for reliable, long-term operation in residential and light commercial applications
- Direct drop-in replacement minimizes installation time and complexity
Application
This sequencing relay is intended for use in Rheem and Ruud electric furnaces and air handlers where staged heating element control is required. Always verify compatibility with your specific unit model before installation.
Why Choose an OEM Sequencing Relay?
Using a genuine Rheem-Ruud replacement relay ensures your system operates within its original design parameters. Aftermarket substitutes may not meet the exact electrical specifications required, potentially leading to nuisance trips, premature component failure, or voided equipment warranties. The PD425118K is the correct, manufacturer-specified solution for a dependable repair.







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