The “SNS Series Thermal Magnetic Type” refers to a specific line of thermal-magnetic circuit breakers, likely a product of a manufacturer like Schneider Electric or similar, that combines both thermal and magnetic protection for electrical circuits. These breakers offer protection against overloads by using the thermal element and against short circuits by using the magnetic element.
Elaboration:
Thermal Protection: This part of the circuit breaker uses a bimetallic strip that heats up when an overload (excess current) flows through it. This heat causes the strip to bend, tripping the breaker and interrupting the circuit.
Magnetic Protection: This part uses an electromagnet that is energized by the current flowing through the circuit. High currents, such as those in short circuits, create a strong magnetic field, which causes a mechanism to trip the breaker and interrupt the circuit.
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