Line Voltage Thermostat Differential

When selecting the best product for your application, you’ll notice we frequently discuss line voltage temperature differential, or hysteresis, in relation to our thermostats. So, what exactly is it? The temperature differential, or hysteresis, refers to the difference in temperature between when a switch changes states from Open to Closed. For more details about temperature differential or our thermostat products, contact us.

Example of Line Voltage Thermostat Differential

Consider a line voltage thermostat that activates a fan when the air temperature reaches 70°F (contacts close) and deactivates the fan when the temperature drops to 65°F (contacts open). In this case, the temperature differential of the line voltage thermostat is 5°F.

Line Voltage Temperature Differential

Adjustable Differentials

  • Our Brand (Tempro): Our line voltage thermostats offer an adjustable differential up to 12°F.
  • Electronic Temperature Controller: This controller provides an adjustable differential up to 30°F. For additional information, visit the product page.

Fixed Differentials

  • K-Kontrol Brand: Available with a fixed temperature differential of 2°F. For more information, visit the K-Kontrols website.

TP510 LINE VOLTAGE THERMOSTATCustomized to Manufacturer Specifications

We offer customization options to meet specific manufacturer requirements:

  • Size, Material, and Performance: Tailored to your specifications.
  • Design, Color, and Branding: Customized to match your branding needs.
  • High Volume Discounts: Available for bulk orders.

Made in the USA

Tempro is committed to quality control and reliable operation of our components. Our products are designed, manufactured, tested, and shipped from our facilities in Eau Claire, WI, to clients around the world. Each switch undergoes individual testing before leaving our plant to ensure top performance.

Explore Our Product Catalog

Visit our product catalog to explore our range of thermostats and other temperature control solutions.

Talk to a product specialist today!

Thermostats & Guards

Tempro offers line voltage thermostats & guards commonly found in commercial, industrial and agricultural settings.

Custom Options

Variety of custom options available in both thermostats & guards, such as, temperature ranges, materials, size & private branding.


Tempro products meet NEMA, UL, cUL & NEC 457 Ag-ratings.

High Quality

We take pride in quality control & reliable operation of our components. Every switch is individually tested before it leaves the plant.

Stocked in the U.S.A.

Products are designed & shipped from our facilities in Eau Claire, WI to clients across the globe.