Company News

Automatic transfer switch(ATSE) can solve the overlapping problem of neutral lines. So what do we mean by neutral line overlap? Figure 1: Assume that the voltage of the DC power supply is 220V, and the resistance value of the three load resistors R is 10 Ohms. Let’s calculate the voltage a...

Dear All: 2021 National Day is coming, first of all,the ATS rofessional manufacturer  One Two Three Electric Co., LTD.wishes the great motherland, prosperity, wishes all partners happiness, health and a happy holiday. National Day holiday arrangement of One Two Three Electric Co., LTD. : 4 days h...

On September 17th, One Two Three Electric Co., Ltd. sent 32 management cadres to Jianfeng Training City to launch a 3-day training camp for grassroots management cadres to enhance team cohesion and improve the management ability of grassroots cadres. This course mainly starts from three main asp...

1.in the lighting circuit in order to reduce the cost of the project, usually choose 1P circuit breaker, need to pay attention to the superior circuit breaker must have leakage trip function, must cut off the superior power supply; 2. Power maintenance in order to prevent the live line and the ze...

According to the structure of the circuit breaker classification, there are universal type, plastic shell type, plastic case circuit breaker, which is suitable for rated voltage 690V, frequency 50/60Hz, rated current 16 to 1600A distribution system or as a transformer, motor, capacitor and other ...

When the mains power and the generator power conversion, the particularity of the generator should be taken into account first. After the mains power is cut off, the generator will start automatically. The output of the power of the outgoing motor can only be achieved after the indicators of the ...

China One Two Three Electric Co., Ltd. is a high-tech enterprise specializing in the research, development and manufacturing of double power automatic transfer switch, disconnecting switch and molded case circuit breaker. The company has a group of high-quality technical and management per...