Marley Engineered Products 4520-0011-000 Limit Switch ensuring the heat exchanger does

ensuring the heat exchanger does not exceed safe operating parameters

Technical Support FAQ

Always verify your equipment model number and fan blade specifications before ordering

Always verify your specific model number for HVAC part compatibility

Marley Engineered Products 4520-0011-000 Limit Switch ensuring the heat exchanger doesThe Marley Engineered Products 4520 0011 000 Limit Switch is a high precision 300F CU AUTO limit switch engineered for critical thermal protection in industrial and commercial heating applications. As a veteran grade HVAC replacement part, this linear limit protector features an automatic reset mechanism that triggers at a 300F threshold to prevent equipment overheating and potential component failure. The 4520 0011 000 is built with a rugged copper