A Thermal Overload Relay is a safety device used in manual control circuits. The thermal overload uses an electric motor to control its overheated short circuit by switching off the heating circuit when the temperature increases above the set value. This type of thermal overload relay will be used if there is the possibility of a short circuit or continuous high-temperature conditions in an area where it is installed.
A thermal overload relay has two contacts, one normally open and the other normally closed, forming a simple electrical circuit when they meet together to carry out their functions effectively. This article will discuss a guide on thermal overload relay working principle.
SKU: 837112
Categories: Switchgears & Controlgears, Overload Relays
An overload relay is a safety device that protects your circuit against damage caused by high-power loads. The relay opens if the load exceeds a certain amount, protecting the circuit from destruction.
The simplest version of an overload relays is a single-pole, single-throw (SPST) switch. This type of relay has only one position or position that can be set, and it responds to a single-step input signal from the load or source.
To use a relay, you must first know what type of circuit you are protecting. For example, if you have an electric stovetop, it will be much safer to use an relay than a second tripping switch near where the stovetop cord attaches to its power cord.
Suppose you have an electrical outlet that has multiple circuits going through it. In that case, you can also use overcurrent protection devices such as overcurrent fuses or shutters to protect individual circuits from damage caused by overloading them with too much current from other circuits coming into contact with them simultaneously.
