CKJ5 series vacuum AC contactors (hereinafter referred to as contactors) are mainly used in circuits  with AC 50Hz,rated working voltage up to 1140V, and rated working current up to 630A. They are used for long distance connection and disconnection of circuits, and can be combined with appropriate thermal overload relays or electronic protectors to form vacuum electromagnetic starters. They are particularly suitable for forming isolated vacuum electromagnetic starters.

In daily electricity usage, the direct hazards of high voltage include accelerated aging of electrical equipment insulation and reduced lifespan. If the voltage exceeds a certain range, it can directly burn out electrical appliances such as TVs, DVDs, stereos, and more, with severe cases leading to equipment damage or even fire hazards. On the other hand, low voltage can result in increased current flow due to the fixed rated power of the load, which can cause significant damage to motors and air compressors.
Examples of appliances affected by low voltage include refrigerators, freezers, water pumps, washing machines, and air conditioners.
Our voltage protector series products offer an economical and practical solution to address this issue. Taking a 220V protector as an example, we have a preset value, let’s say the factory-set operating range is 165-250V. When the voltage falls below 165V or exceeds 250V, our product will cut off the power supply to protect the electrical appliances. Once the voltage returns to the set range, the power supply will automaticallybe restored.

General
The DDSY726 type single phase prepayment meter is a new type IC card prepaymentmeter which has such function as power metering,load control and customerinformation management.It is an ideal product when reforming electric-use system,achieving electrical energy to commercialize,setting charge and adjusting load stagein the power network.It adopt LSI and SMT technology,the key component are longlife international brand product.All of its functions comply with the relative technicalrequirement for class 1 single phase watt hour meter in IEC62053-21.

YCH5 series vertical fuse-switch disconnector is applicable in the circuit of rated voltage AC690V and below, rated current AC 160A-630A, rated frequency of 50Hz.
YCH5 series are infrequently manually operated multipolar fuse combination switches.
They break or switch off on load and provide safely isolation and protection against overcurrent for any voltage electrical circuit.
Standard: IEC 60947-3.

General
YCQJ7 series motor controller (hereinafter referred to as controller)is mainly used in circuits with afrequency ofAC 50Hz(or 60Hz),a rated operational voltage of up to380V and a rated control power of up to 18.5kW (current upto 38A)to control the direct startand stop of water pumps ormotors,provide motors withoverload and phasefailure protection,and realize automaticliquid level control for civil water towersand reservoirs.Thisproduct is not applicable to theliquid levelcontrol oflow-conductivity liquids,such as oil,purified water,inflammableandexplosive chemical liquids and high-density sewage.
Standards:IEC60947-4-1.

Product Features
1.Sensorless vectorcontrol with the best low frequencycompensation ability
2 Designed with spedial radiator tree and switch powe,all of suchkinds of newtechnologiesimprovethe performance
3.Several protective techologies and new component have beenapplied to thecircuit,notablyimprove theanti-interferenceability
4.Realize the preset frequency.or central frequency adjustable swing frequencyfunction
5.Several phasesspeed operation controlled by build-in PLCor controllingterminal
6.ModulationMode:space vector pulbsewidthmodulationSVPWN
7.Automatic energysavingoperatiom automatically optimize V/F curve tosave theenergy
8.Switch input channet forwardand reversal roration control,8 channel programswitchinput,35 kinds offunction
9.Strong overload perfomance 150%rated corrent for 1 minute,180%ratedcurrentfor 3 seconds
10.Communication functiom RS485 standard communication interface,supportASOland RTUformat MODBUS communicationprotocol

The YCQR-63 Mini Automatic Transfer Switch (PC Class) is designed for seamless and efficient power management with a rated current range of 6A to 63A. It ensures quick and reliable switching between the main power supply and backup power, with a transfer time of less than 50 milliseconds. Ideal for residential, commercial, and small industrial applications, this compact switch provides robust performance and enhanced safety. Engineered for automatic power transfer, the YCQR-63 ensures uninterrupted power supply and optimal system reliability. Choose the YCQR-63 for dependable, fast, and efficient power switching solutions in your electrical systems.

General YCM7RE Series Electronic circuit breaker is suitable for ac 50 Hz, rated voltage 690V, the rated working current 800A low voltage power grid.

The YCM7T/A, RTseries of Thermal Magnetic Adjustable Type Molded Case Circuit Breakers (MCCB) represents the pinnacle of industrial power protection. Designed for ultimate flexibility and precision, these breakers offer advanced features for a wide range of applications.