The differences between isolating switches and circuit breakers are as follows:The functions are different. The isolation switch is used to isolate or cut off the circuit to completely isolate it from the power supply or other circuits. It is usually used for safe operation, inspection and maintenance of electrical equipment. In addition to isolating a circuit like an isolating switch, a circuit breaker can also automatically cut off the circuit under fault conditions such as current overload and short circuit to prevent damage to electrical equipment or wires.The structure is different. The isolating switch usually adopts a double breakpoint frame and is mainly composed of movable contacts and fixed contacts. Circuit breakers usually use electromagnetic or thermal type, and have protection mechanisms such as thermal release and electromagnetic release inside.Rated current is different. The rated current of the isolating switch is usually small and is generally used in low-voltage circuits. Circuit breakers have larger current ratings and can be used in both low-voltage and high-voltage circuits.Different nature. The isolating switch is a passive component and can only passively withstand short-circuit current, electrodynamic impact and thermal shock. The circuit breaker is an active component and can actively cut off the short-circuit current when a short-circuit current occurs in the line.

Surge Protector, also known as SPD (Surge Protection Device), is a device used to protect electronic equipment, instrumentation and communication lines from voltage surges and current surges. Its main functions include:Absorb and break down voltage surges: Surge protectors can absorb and break down sudden voltage surges in the power system, preventing these surges from causing damage to equipment connected to the power system. 1.Limit overvoltage: When overvoltage occurs, the surge protector shunts and limits the voltage in parallel to prevent excessive current and voltage from damaging the equipment.  2.Discharge surge current: The surge protector can discharge the surge current caused by lightning, power system switching, motor starting, etc.  12 Fast response time: The surge protector has a very fast response time and can trigger protective action immediately when a voltage surge or overvoltage occurs.  3.Large current withstanding capability: Surge protectors can withstand large surge currents and effectively absorb and disperse the energy caused by voltage surges and overvoltages.The aging mechanism of the surge protector includes the internal mechanism tripping in time to prevent fire when aging, while maintaining continuous effective lightning protection during lightning strikes. In addition, surge protectors can work stably in different harsh working environments, and the products have good consistency, ensuring that the indicators in each set of products remain consistent, thereby ensuring stable performance and extending service life.

Surge Protector, also known as SPD (Surge Protection Device), is a device used to protect electronic equipment, instrumentation and communication lines from voltage surges and current surges. Its main functions include:Absorb and break down voltage surges: Surge protectors can absorb and break down sudden voltage surges in the power system, preventing these surges from causing damage to equipment connected to the power system. 1.Limit overvoltage: When overvoltage occurs, the surge protector shunts and limits the voltage in parallel to prevent excessive current and voltage from damaging the equipment.  2.Discharge surge current: The surge protector can discharge the surge current caused by lightning, power system switching, motor starting, etc.  12 Fast response time: The surge protector has a very fast response time and can trigger protective action immediately when a voltage surge or overvoltage occurs.  3.Large current withstanding capability: Surge protectors can withstand large surge currents and effectively absorb and disperse the energy caused by voltage surges and overvoltages.The aging mechanism of the surge protector includes the internal mechanism tripping in time to prevent fire when aging, while maintaining continuous effective lightning protection during lightning strikes. In addition, surge protectors can work stably in different harsh working environments, and the products have good consistency, ensuring that the indicators in each set of products remain consistent, thereby ensuring stable performance and extending service life.