What is the difference between isolating switch, circuit breaker and air switch?

June 15,2022

residential smart circuit breaker,LED screen gateway breaker,buy earth leakage circuit breaker

 

First of all, a simple explanation is given. The air in the air switch means that the breaking uses air as the medium (different from the medium and high voltage switch), then the general air switch refers to the small circuit breaker (micro-break), and the range of the circuit breaker is relatively wide. General small residential smart circuit breaker, LED screen gateway breaker, buy earth leakage circuit breaker, leakage protection short circuit breaker are all types of circuit breakers.

Distinguish by function:

Isolation switch: only has isolation protection function, does not have short circuit, overload and leakage protection functions;

 

Small circuit breaker: generally rated current below 125A, with overload and circuit breaker protection functions;

 

residential smart circuit breaker/LED screen gateway breaker: with overload and circuit breaker protection;

 

Leakage protection switch: with leakage protection function, it is subdivided into those with overload protection and those without overload protection, and those with short-circuit protection and those without short-circuit protection.

 

According to the national standards in line with:

 

MCB GB10963.1 Overcurrent Protection Circuit Breakers for Household and Similar Places: Circuit Breakers for AC

 

MCCB GB14048.2 Low-voltage switchgear design and control equipment: circuit breakers

 

RCCB GB16916.1 Residual current protective circuit breaker (RCBO) without overcurrent protection for household and similar purposes

 

RCBO GB16917.1 Residual current protective circuit breaker (RCBO) with overcurrent protection for household and similar purposes

Buy earth leakage circuit breaker refers to a switching device that can close, carry and break current under normal circuit conditions, and can close, carry and break current (including short-circuit current) under abnormal circuit conditions within a specified time. . Circuit breakers can be divided into high-voltage circuit breakers and low-voltage circuit breakers according to their standard voltage range.

 

The low-voltage circuit breaker is one of the low-voltage electrical appliances. It is the main representative component of low-voltage electrical appliances with complex structure, high technical content and economic value, and occupies an important position in the low-voltage power distribution system;

 

High-voltage circuit breakers are the main power control equipment in power plants and substations. According to industry habits, they can be subdivided into medium-voltage circuit breakers, high-voltage circuit breakers, ultra-high-voltage circuit breakers and ultra-high-voltage circuit breakers. There are many types of circuit breaker products, and the scope of application and characteristics of different types of products are different.

 

 

Taking high-voltage circuit breakers as an example, high-voltage circuit breakers are mainly divided into multi-oil circuit breakers, less oil circuit breakers, sulfur hexafluoride circuit breakers (SF6 circuit breakers), vacuum circuit breakers, and compressed air circuit breakers.

 

At present, LED screen gateway breaker, residential smart circuit breaker, buy earth leakage circuit breaker are mainly used to distribute electric energy, control and protect current, and involve all walks of life in national life, the most important of which are electric power, real estate, and industrial manufacturing.