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Thermal - Magnetic Switch
🔹 Introduction
Thermal-Magnetic Circuit Breakers are among the most important protective devices in industrial electrical systems, operating as a combination of thermal protection (overload) and magnetic protection (short circuit).
These switches are typically used in industrial distribution boards, especially for protecting electric motors and sensitive equipment.
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The thermal section uses bimetal to identify excessive current and disconnects the circuit.
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The magnetic section reacts quickly in case of a short circuit or a significant increase in current, protecting the equipment.
🔹 Features and Benefits
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Combined protection against overload and short circuit
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Suitable for electric motors and industrial equipment
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Accurate and reliable performance
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Increased safety and equipment lifespan
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Robust design for harsh industrial conditions
🔹 Frequently Asked Questions (FAQ)
What is the application of thermal-magnetic switches?
They are used to protect electric motors and industrial equipment from overload and short circuits.
What is the difference between thermal-magnetic switches, MCB, and MCCB?
MCB and MCCB each provide general circuit protection, but thermal-magnetic switches are specifically designed for motors and industrial equipment.
Which brands produce the best thermal-magnetic switches?
Reputable brands include Siemens, Schneider Electric, ABB, LS Electric, and Eaton.