Thermal Magnetic PCB?


A thermal-magnetic PCB (Printed Circuit Board) is a type of circuit breaker PCB that uses both thermal and magnetic principles to protect the circuit. It uses a bimetallic strip that expands when heated by an overcurrent, and a magnetic trip unit that is activated by a heavy current.

The bimetallic strip in a thermal-magnetic PCB acts as a thermal switch, which opens when the temperature of the strip rises due to an overcurrent. This helps to protect the circuit from overheating and potential damage. The magnetic trip unit, on the other hand, acts as a magnetic switch, which opens when a heavy current flows through the circuit. This helps to protect the circuit from overloading and short-circuiting.

thermal magnetic pcb
thermal magnetic pcb

The thermal-magnetic PCB is commonly used in residential and commercial applications, it is reliable, cost-effective and easy to maintain. It provides protection against both thermal and magnetic faults, making it a versatile option for a wide range of applications.

Advantages of thermal-magnetic PCBs include:

Provides protection against both thermal and magnetic faults
Cost-effective
Reliable and easy to maintain
Widely used in residential and commercial applications
Thermal-magnetic PCBs are not suitable for high-voltage applications and electronic circuits that require a high level of accuracy in overcurrent protection.

Thermal-magnetic PCBs are widely used in residential and commercial applications such as lighting, heating, and air conditioning systems, as well as in electrical equipment such as motors, transformers, and other appliances. They are also commonly used in industrial applications to protect electrical circuits and equipment from overcurrents and short-circuits.

One of the main advantages of thermal-magnetic PCBs is that they provide both thermal and magnetic protection in a single unit, which can save space and simplify the design of the electrical system. They are also relatively inexpensive and easy to install and maintain, which makes them a cost-effective option for many applications.

Thermal-magnetic PCBs are generally not suitable for high-voltage applications, as they may not provide the level of protection required for these types of systems. They are also not suitable for electronic circuits that require a high level of accuracy in overcurrent protection, as they may not respond quickly enough to very fast transients or high-frequency disturbances.

In summary, thermal-magnetic PCBs are a reliable and cost-effective option for protecting electrical circuits and equipment from overcurrents and short-circuits in residential, commercial and industrial applications where the voltage and current rating is not high. They are not suitable for high-voltage or high-frequency electronic circuits that require high accuracy in overcurrent protection