310000451596

Series:	3100
Part Status:	Obsolete
Circuit:	--
Switching Temperature:	--
Reset Temperature:	--
Current Rating - AC:	3A (240V), 7A (30V)
Current Rating - DC:	7A (30V)
Tolerance:	--
Switching Cycles:	5K
Termination Style:	--
Mounting Type:	--
Package / Case:	--

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Temperature Sensors - Thermostats - MechanicalMechanical thermostats are one of the simplest and most widely used temperature sensors. A mechanical thermostat is a device that features two contact points that close or open an electrical circuit when triggered by a temperature change. This type of temperature sensors is well-suited for low-cost applications and for controlling electric heaters and heating, ventilation, or air conditioning (HVAC) systems.Mechanical thermostats can be classified according to their sensing element. The most common kind of mechanical thermostat is the bi-metallic strip, which is composed of two different metal strips bonded together. The two strips expand and contract at different rates when subjected to temperature changes, causing the strip to bend and activate a contact. Other mechanical thermostats are equipped with a liquid or wax filled capsule, which acts as a sensor. When the temperature changes, the capsule expands or contracts, activating the contact.The primary function of mechanical thermostats is to measure and control the temperature of a system. They are typically used in applications where a constant temperature is required, such as in HVAC systems. They work by switching an electrical circuit on or off when the temperature exceeds a certain limit. Mechanical thermostats can also be used in applications that require accurate temperature measurement.Mechanical thermostat operation is typically triggered by a temperature change. When the temperature rises, the bimetallic strip, liquid-filled capsule, or wax filled capsule will expand, activating the contact. The contact then closes the electrical circuit and the device will turn on. As the temperature drops, the bimetallic strip, liquid-filled capsule or wax, filled capsule will contract, deactivating the contact and the device will turn off. Generally speaking, the accuracy of the thermostat is determined by the setpoint.The setpoint is defined as the maximum temperature that the thermostat will turn off the electrical circuit. When the maximum temperature is exceeded, the thermostat will turn off the circuit and the electrical device will stop running. The lower setpoint is also important, as this is the temperature at which the thermostat will turn on the electrical circuit. Generally, the higher the setpoint, the more accurate the controlling temperature will be.Mechanical thermostats provide good protection for equipment and surroundings when controlling temperature. They are typically used in industrial, commercial, and residential applications, as they are low-cost and easy to use. They offer fast response and reliable performance and are suitable for temperature measurement or control.

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