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ABOUT US

One Two Three Electric Co., Ltd. is Located in Yueqing, Zhejiang Province, the capital of China’s electrical appliances, this company is a high-standard manufacturer specializing in the development and production of low-voltage electrical appliances such as moulded case circuit breaker, Air circuit breaker, miniature circuit breaker, leakage circuit breaker, control and protection switch, dual-power automatic switching switch, isolation switch and so on.

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  • Classification of isolating switches

    Isolation switches can be divided into horizontal rotation, vertical rotation, plug-in and other electrical equipment isolation switches. Isolation switches can be divided into single-column, two-column and three-column electrical isolating switches. This is a switchgear...

  • Why is Automatic Transfer Switch （ATSE ）Important?

    What is the automatic transfer switch ATSE? An automatic transfer switch or ATSE is a transfer switch used in conjunction with a diesel generator or other backup power supply to automatically switch between the power supply and the generator or backup power supply in the event of a power failure....

  • Single – Phase Leakage Protector Can be Connected to the Three – Phase Four – Wire Circuit

    Single-phase leakage maintainer (made up of miniature-circuit-breaker)can not be connected to the three-phase four-wire circuit. The technique has specialized, single-phase leakage switch MCB in the leakage maintenance device inside the zero-sequence current transformer detection is a phase line ...

  • What are the differences between miniature circuit breakers and molded case circuit breakers

    Miniature circuit breaker (hereinafter referred to as MCB) is a circuit breaker switch product with a large range of use and a large number. Its main function is to maintain the power distribution equipment of electrical engineering terminal equipment. Since both belong to isolating switches, pla...

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