The thermostat controls the temperature of professional ovens and cooktops, through a bulb in contact with the heat source connected by a capillary tube to the control body.

Adjustable thermostat: lets you set the working temperature within a range (e.g. 0-90°C, 40-120°C, 60-320°C), available single or three-phase.

Safety thermostat: trips at a fixed threshold (e.g. 230°C, 350°C) to cut heating in case the adjustable thermostat fails, often with manual reset — unlike the adjustable type, it should not be used as a working control, only as a protection.

How to choose the right part: check the type (adjustable or safety), the temperature range/threshold, voltage/phases (single or three-phase), bulb diameter and capillary length (e.g. 600, 1000mm) — all data needed for compatibility.

For the connected heating elements go back to Heating Elements.

Frequently asked questions

What's the difference between an adjustable and a safety thermostat?
The adjustable one sets the working temperature; the safety one only trips in case of a fault, at a higher fixed threshold, often needing a manual reset after tripping.

How do I measure the capillary I'm replacing?
Measure the length from the thermostat body to the bulb, and the bulb's diameter: both must match the original for correct installation.