In fact, most refrigerators have overload protection devices, which may be fuses, circuit breakers or circuit protection elements with similar functions, but some refrigerators do not appear to have independent visible fuses or circuit breakers, mainly for the following reasons:Built-in protection elementIntegration with compressorThe main power-consuming part of the refrigerator is the compressor, and many refrigerators integrate protection elements into the compressor's starting and running ci

Arc Fault Circuit Interrupter (AFCI) and Ground Fault Circuit Interrupter (GFCI) are two different types of circuit breakers that have different functions and uses and cannot be used interchangeably. Here are the differences between them:AFCI (Arc Fault Circuit Breaker) Design purpose:AFCI is primarily used to detect and prevent arc failure, which is an electrical failure due to loose wires or connections that can cause a fire. An arc failure usually occurs when the insulation of a wire is damag

There is indeed a correlation between the size of the circuit breaker (which usually refers to its rated current, which is the number of amps) and its strength (which is its ability to protect). The size selection of the circuit breaker should be based on the specifications of the wires in the circuit and the expected maximum load current. Here's a detailed explanation:The relationship between circuit breaker size and strengthProtection abilityThe size (rated current) of the circuit breaker dete

FuseFeatureThe fuse is a simple and effective circuit protection element. When the current flow in the circuit is large, the melt in the fuse (such as the fuse) will be blown due to overheating, thus cutting off the circuit and preventing the equipment in the circuit from being damaged due to overcurrent. In the use of AC power, it can protect various electrical equipment, lines, etc. connected to the AC power supply. For example, in the home circuit, if a short circuit fault occurs in an electr

Parallel circuit breakers usually refer to circuit breakers used for parallel operation in power systems. Their purpose is to achieve the simultaneous operation of multiple circuit breakers to achieve load distribution, increase system capacity, and enhance redundancy and flexibility. The following are the main purposes and application scenarios of parallel circuit breakers:Load distributionIn large power systems, a single circuit breaker may not be sufficient to handle the full load. By connect

AC circuit breakers (AC circuit breakers) are mainly used to protect devices in AC circuits from overload, short circuit, or ground faults. However, if an AC circuit breaker is to be used in a direct current circuit (DC circuit), several key factors need to be considered:Type of circuit breaker AC circuit breaker (AC) : Circuit breakers designed for AC power rely on the natural zero crossing of AC power when cutting off current. Alternating current has two zero crossing points in each cycle, whi

What is a Mixed Media Circuit Breaker?Mixed media circuit breaker definitionMixed-medium circuit breaker is a high-voltage circuit breaker that uses a variety of media (usually a combination of gas and solid materials) as insulation and arc extinguishing media. This type of circuit breaker is designed to combine the advantages of different media to improve the performance, reliability and environmental protection of the circuit breaker.Working principleThe operating principle of mixed media circ

What is a High Voltage Circuit Breaker?High Voltage Circuit Breaker definitionA type of circuit breaker used in power systems with a rated voltage of 35KV and above, used to cut or switch on loaded or unloaded circuits, as well as faulty circuits.High Voltage Circuit Breaker components Conductive part : responsible for the conduction of current ‌Insulation part : prevent electric shock accident ‌Operating mechanism : through the contact parting, ‌ closing action to realize the circuit to break a

What is a circuit breaker?Circuit breaker definitionCircuit breaker is a switch device composed of contact system, arc extinguishing system, operating mechanism, release device, housing, etc, which can close, carry and break the current under normal and abnormal conditions to protect the circuit and equipment from overload, short circuit and other faults.Basic structure Contact system Arc extinguishing system Operating mechanism Release device ShellWorking principleWhen the short circuit, the ma