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.

Distribution switch control equipment is a kind of electrical equipment mainly used to control and protect the power system. It includes circuit breakers, switches, controllers, sensors, transmitters and other equipment, and is an important part of the power system.A circuit breaker is a major distribution switch control device used to connect and disconnect circuits. Its main function is to automatically disconnect circuits in the event of a fault, thereby protecting the power system. A switch is a basic control device used to turn on and off a circuit. Its function is to control the on-off state of the circuit. The sensor is a monitoring device used to monitor current, temperature, pressure and other parameters in the circuit. Its function is to monitor the operating status of the circuit and ensure the safe operation of the power system. A transmitter is a device that converts signals in a circuit into a standard signal. Its function is to realize signal transmission and conversion in the circuit.Distribution switch control equipment plays a very important role in the power system. It can turn on and off the circuit, control the operating status of the circuit, monitor the operating status of the circuit, and protect the power system from damage due to faults. It is an indispensable part of the power system and is of great significance to ensure the safe and stable operation of the power system.