An electrical thermal overload relay is a protective device used in electrical systems to protect motors and other electrical equipment from overheating due to excessive current. It works by monitoring the temperature of the electrical equipment and disconnecting power if the temperature exceeds a certain threshold, indicating an overload condition. The relay typically consists of a thermal element, such as a bimetallic strip or a thermistor, which expands or contracts in response to temperature changes. When the temperature rises above a set limit, the thermal element triggers the relay to open the circuit, interrupting the flow of current to the equipment and preventing damage. Thermal overload relays are commonly used in conjunction with motor starters to provide motor protection. They are essential safety devices in electrical systems, helping to prevent equipment damage, fires, and other hazards associated with overheating.
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JK Electricals
Dinesh Patel
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Annual Turnover : Rs. 4 Crore
Area of Expertise : Electricals
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