White-Rodgers 754-1 Thermostat Control

The White-Rodgers 754-1 is a professional-grade electric water heater limit control engineered for critical high-temperature safety. This surface mount thermostat features a DPST (Double Pole Single Throw) configuration, providing a simultaneous break for both lines of the power supply to ensure complete circuit isolation during an over-temperature event. Factory-calibrated with a 170°F fixed setting, this control is designed to open on rise, preventing the storage tank from reaching unsafe thermal levels. The manual reset mechanism requires a technician to physically inspect the system after a trip, ensuring any underlying issues—such as a stuck primary thermostat or heating element scale buildup—are addressed before the heater is returned to service.

Built for durability in high-demand residential and light commercial environments, the 754-1 utilizes snap-action contacts for crisp, reliable switching and reduced arcing. It is rated for 40 Amps at 277 VAC, making it a robust solution for standard electric water heater wiring. When replacing a water heater high limit switch, this manual reset thermal cutout offers the precise 170-degree protection required to meet safety standards. Its compact, surface-mount design allows for direct thermal contact with the tank wall, ensuring rapid response times to temperature spikes.

• Double Pole Single Throw (DPST): Provides a dual-line break for enhanced electrical safety.
• 170°F Fixed Cutout: Precise water heater high limit protection to prevent overheating.
• Manual Reset Feature: Ensures manual reset water heater control logic, requiring maintenance verification after a fault.
• Heavy-Duty Construction: Rated for high-amperage electric water heater parts applications.
• Snap-Action Contacts: Maximizes component life by reducing contact wear during switching.

How do I troubleshoot a tripped 754-1 limit control?
If the water heater high limit keeps tripping, check the lower and upper primary thermostats for continuity and ensure the heating elements are not shorted to the tank. A trip at 170°F usually indicates that the primary regulation has failed.

Can this be used on a 240V water heater?
Yes, the White-Rodgers 754-1 is designed for electric water heater limit applications and is rated to handle standard 240V and 277V circuits up to 40 Amps.

Why is a manual reset required on this model?
The manual reset thermal limit is a safety standard. It prevents the water heater from cycling automatically if a dangerous temperature is reached, forcing an inspection to prevent potential tank damage or injury.

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.