Zettler Controls (Ningbo) manufactures thermal control components including thermostats and temperature sensors for household appliances, HVAC/R, and automotive applications, backed by automated manufacturing and 100% quality testing.
Zettler Controls (Ningbo) Co.,Ltd develops thermal control products and solutions for household appliances, HVAC/R applications, and automotive uses. The company’s portfolio includes thermostats, relays, transformers, contactors, heat sequencers, temperature sensors, and fan centers—supporting both residential and commercial equipment.
Driven by a focus on innovative technology, simplicity, and modularity in product design, Zettler Controls emphasizes practical solution development alongside automated manufacturing. This approach supports responsive customization for application challenges while maintaining consistent product performance.
To meet demanding delivery and service expectations, the company keeps inventory exceeding one million units and offers quick turnaround. With 100% quality testing and strong sales and technical support, Zettler Controls positions itself as a dependable component partner for global OEM and system customers.

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Product development centers on innovative technology with an emphasis on simplicity and modularity. Solutions are engineered to be practical for real-world operating conditions and integration needs.
Manufacturing is built around automated processes to support consistent output and dependable quality for high-volume component supply.
Every unit is subjected to 100% quality testing to support reliability in demanding applications across appliance and HVAC/R systems.
To support stable supply for customers, inventory is maintained at over one million units, enabling outstanding product availability.
Customers are supported by first-class sales and technical teams, with a collaborative approach to solving application challenges and meeting required service levels.
The Zettler name has represented quality and reliability in relays for over 100 years, serving demanding applications such as telecommunications systems, computer peripherals, office automation equipment, home appliances, security systems, test and measurement devices, and industrial controls.