R0457400 High-Limit Wire Harness Switch Assembly — for Zodiac Jandy Legacy LRZE (125, 175, 250, 325, 400) & LXi Low NOx (250, 300, 400)

Overview: The R0457400 high-limit wire harness switch assembly provides the electrical link between high limit switches and the heater control board for Zodiac Jandy Legacy LRZE models (125, 175, 250, 325, 400) and Zodiac Jandy LXi Low NOx models (250, 300, 400). Compatible replacement numbers include 52337023375, 6204-217, 633715, LAR-151-1212, and 47-295-1180. Safety & Operation: This harness continually monitors the heater’s internal temperature and will interrupt power to the unit if temperatures rise above a safe threshold, preventing overheating and protecting the pool or spa system. By stopping the heater when limits are exceeded, it helps maintain safe water temperatures and avoids unnecessary operation. Performance Benefits: Proper temperature monitoring supports comfortable water heating while promoting efficient energy use. The assembly ensures the heater only runs when needed, reducing wasted energy and improving overall system reliability. Construction: Built from premium copper, plastic, and rubber, the harness offers strong electrical conductivity along with good moisture protection and insulation. The materials are selected to resist wear and corrosion during extended service in pool and spa heating environments. Support: We stand behind product quality with extended assurance services. If you experience any issues related to quality during purchase or use, our after-sales team will respond in a timely manner to resolve problems and safeguard your rights.