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How to choose a miniature circuit breaker
1. The number of poles for a circuit breaker should be determined based on the number of lines that need protection. For instance, in a typical residential single-phase electrical system, which consists of one neutral wire and one live wire forming a circuit, a two-pole breaker is chosen if both...Read More -
Why do distribution boxes need to be equipped with a surge protective device?
In today’s technologically advanced world, the need for surge protective device (SPD) in distribution boxes cannot be underestimated. Surge protectors play a vital role in protecting electrical and electronic equipment from lightning strikes and overvoltage damage. The high voltage and cur...Read More -
Why does the AC contactor make a buzzing sound?
When the AC contactor is working, it will connect or disconnect the circuit, so arc and corona discharge phenomena will be generated on the contacts, resulting in buzzing noise. When the contacts on the AC contactor connect the circuit, the potential difference due to the resistance will cause a...Read More -
Is the air circuit breaker manual or electric?
The air circuit breaker (ACB) is a relatively complex switch that plays a vital role in electrical systems. A common question that comes up is whether the air circuit breaker is manual or electric. In fact, the answer is not black or white, but a combination of both. The function of the air circu...Read More -
Notes on different circuit locations of CB-level ATS
Automatic Transfer Switches (ATS) play a vital role in ensuring seamless and reliable power transmission during critical situations. Among the different types of ATS on the market, Class CB ATS stands out for its ability to connect, carry and break short-circuit currents while being equipped wit...Read More -
Introduction to molded case circuit breaker tripping
Molded case circuit breaker (MCCB) is an important part of the low-voltage power distribution industry. Its key function is to cut off or isolate fault current within the normal and rated range to ensure the safety of lines and equipment. One of the key aspects of an MCCB is its tripping mechani...Read More -
The meaning of the technical parameters on the miniature circuit breaker shell
The photo of the miniature circuit breaker(MCB) is as follows: The first line: CMTB1-63A indicates that the case current of this miniature circuit breaker is 63A. The case current is the maximum value of the rated current series of this miniature circuit breaker. Second line: C20 indicates that ...Read More -
How surge protectors device(SPD) work
Surge protectors, also known as surge protective devices (SPD), are essential components in any electrical system. They play a crucial role in protecting sensitive electronic equipment from the damaging effects of voltage surges and transients. In this article, we will explore how surge protecto...Read More -
MUTAI CJ19 AC Contactor
Mutai Electric Group’s CJ19 series switched capacitor contactor, referred to as contactor, is an important component in low-voltage reactive power compensation equipment. This contactor is designed for use in AC systems with a frequency of 50Hz or 60Hz, under AC-6b usage category, with a r...Read More -
Introduction to Mutai Group air circuit breaker(ACB)
Mutai Group is a leading air circuit breaker manufacturer, and its CMTW1 series intelligent air circuit breaker (ACB) are top-notch products designed to ensure the reliability and safety of power distribution networks. This article introduces Mutai Group’s air circuit breakers and describe...Read More -
Briefly understand what ATS is
Electricity supply is closely related to our lives, and sudden power outages can have a significant impact on our daily activities. Without electricity, lighting, laundry, cooking, communication and transportation are limited, affecting our ability to perform basic tasks. In addition, the...Read More -
The difference between electronic and electromagnetic types in RCBO
Residual current operated circuit breakers (RCBO) are an important component in ensuring the safety of electrical systems. According to the classification of trippers, RCBO can be divided into electromagnetic type and electronic type, each with its own unique characteristics and advantages. Unde...Read More
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