Reznor 151191 Overload

The Reznor 151191 Overload is a critical OEM replacement component designed to provide precise motor protection for a wide range of Reznor commercial and industrial heating units. Also identified by part number RTA1-L, this overload relay is engineered to monitor current draw and interrupt the circuit during unsafe load conditions, preventing catastrophic motor failure and overheating. This HVAC overload control is typically rated for 208/230V systems and is essential for maintaining the operational integrity of high-capacity equipment like the Reznor ADF, CAUA, and PDH series. Its direct-replacement design ensures seamless integration with the existing contactor and control compartment wiring, allowing for rapid field servicing. By accurately detecting phase imbalance or sustained overcurrent, the Reznor 151191 serves as the primary defense against electrical surges and mechanical binding within the blower or fan assembly, ensuring your gas-fired unit heater operates within safe electrical parameters.

• Direct OEM Compatibility: Specifically engineered as a drop-in RTA1-L replacement for numerous Reznor series, including ADF, CAUA, PDH, and PEH models.
• Reliable Motor Protection: Prevents motor burnout by tripping the control circuit when current exceeds safe operating limits.
• Durable Construction: Built for the demands of industrial HVACR environments, providing consistent performance across high-cycle operations.
• Voltage Versatility: Standardized for 208V and 230V commercial heating applications, ensuring broad compatibility across standard job sites.

Which Reznor models use the 151191 overload relay?
This part is compatible with a wide array of equipment, including the ADF 300-1200, CAUA 150-400, and PDH 75-400A series. Always verify the part number against your unit's original wiring schematic.

Can I reset this overload manually after it trips?
Yes, typical overload relays like the 151191 feature a physical reset mechanism. However, as a technician, you must identify the root cause—such as a seized blower motor, faulty capacitor, or phase issue—before returning the unit to service.

Is the RTA1-L the same as the Reznor 151191?
Yes, RTA1-L is the technical identification found on the component itself, which cross-references directly to the Reznor 151191 part number in the manufacturer's catalog.

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.