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Circuit Breaker & AutomaticTransfer Switch

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Rated voltage Rated operating voltage (Un), rated insulation voltage (Ui) and rated pulse voltage.
The rated operating voltage of the circuit breaker is the voltage value associated with the breaking capacity and the use category. For AC multiphase circuit finger circuit voltage. The rated operating voltage is numerically dependent on the rated voltage level of the grid. I standard standards for the exchange of 220,380,660 and 1140V, DC 220,440 V and so on. It should be noted that the same circuit breaker can be specified for use at several rated operating voltages, but the corresponding on-off capability is not the same.
The rated insulation voltage is the voltage value of the circuit breaker. The electrical clearance and creepage distance of the switchgear shall be determined according to this voltage value. Under normal circumstances, the rated insulation voltage is the maximum rated operating voltage of the circuit breaker.
Switch electrical work, to withstand the system occurred in the over-voltage. Therefore, the rated voltage withstand voltage is given in the rated voltage parameter of the switchgear (including the circuit breaker), which should be greater than or equal to the maximum overvoltage peak occurring in the system. Rated insulation voltage and rated pulse voltage together determine the insulation level of the switchgear. 

ANQ3-G Self-resettable Overvoltage and Undervoltage Protection Device is developed under the electricity situation. Control circuit components was imported , This products are of modulization standards, excellent performance and reliability.
Can work under abnormal voltage conditions. When the utility voltage exceeds the protector operating voltage, the protector can quickly and reliably cut off the power to protect the electrical safety.
When the mains voltage back to normal, the protector can automatically turn on the power to restore power supply, all the functions of all automatic implementation, without staff operation.
LED light switch on the panel can indicate the working conditions of protection. Green means normal, red means abnormal. When in red, the light protection function starts to cut off the power supply. This series of products is compact, beautiful appearance, installation rail is same with DZ47 (45) . 


ANT5 series surge protective (in short :SPD,alias:surge protector,surge arrecter) is suitable for TN-S,TN-C-S,TT,IT,ect. Power supply system of AC 50/60 HZ, =380V,installed on joint of LAPZOA zone or LAPZOB and LAPZ1 zone ,which protects the electric network not shocked by the thunder and lightning, it’s designed according to IEC61643-1,GB18802.1, it adopts 35mm standard rail, here is a failure release mounted on the module of suge protective device, When the SPD fails in breakdown for over-heat and over-current,the failure release will help electric device separate from the power system and give the indication signal, green means normal ,red means abnormal. 

ANT1-1~3 series surge protective (in short :SPD,alias:surge protector,surge arrecter) is suitable for TN-S,TN-C-S,TT,IT,ect. Power supply system of AC 50/60 HZ, =380V,installed on joint of LAPZOA zone or LAPZOB and LAPZ1 zone ,which protects the electric network not shocked by the thunder and lightning, it’s designed according to IEC61643-1,GB18802.1, it adopts 35mm standard rail, here is a failure release mounted on the module of suge protective device, When the SPD fails in breakdown for over-heat and over-current,the failure release will help electric device separate from the power system and give the indication signal, green means abnormal ,It’s also could be replaced for the module when has operating voltage. 
ANT1-B series surge protective (in short :SPD,alias:surge protector,surge arrecter) is suitable for TN-S,TN-C-S,TT,IT,ect. Power supply system of AC 50/60 HZ, =380V,installed on joint of LAPZOA zone or LAPZOB and LAPZ1 zone ,which protects the electric network not shocked by the thunder and lightning, it’s designed according to IEC61643-1,GB18802.1, it adopts 35mm standard rail, here is a failure release mounted on the module of suge protective device, When the SPD fails in breakdown for over-heat and over-current,the failure release will help electric device separate from the power system and give the indication signal, green means abnormal ,It’s also could be replaced for the module when has operating voltage. 
ANT1-C series surge protective (in short :SPD,alias:surge protector,surge arrecter) is suitable for TN-S,TN-C-S,TT,IT,ect. Power supply system of AC 50/60 HZ, =380V,installed on joint of LAPZO or LAPO1 , LPZ2 zone ,which protects the electric network not shocked by the thunder and lightning, it’s designed according to IEC61643-1,GB18802.1, it adopts 35mm standard rail, here is a failure release mounted on the module of suge protective device, When the SPD fails in breakdown for over-heat and over-current,the failure release will help electric device separate from the power system and give the indication signal, green means abnormal ,It’s also could be replaced for the module when has operating voltage. 
ANT1-C series surge protective (in short :SPD,alias:surge protector,surge arrecter) is suitable for TN-S,TN-C-S,TT,IT,ect. Power supply system of AC 50/60 HZ, ≤380V,installed on joint of LAP1 or LPZ2 and LPZ3.it’s designed according to IEC61643-1,GB18802.1, it adopts 35mm standard rail, here is a failure release mounted on the module of suge protective device, When the SPD fails in breakdown for over-heat and over-current,the failure release will help electric device separate from the power system and give the indication signal, green means abnormal ,It’s also could be replaced for the module when has operating voltage. 
ANT1-D series surge protective device(in short; SPD, alias; surge protector,surge arrecter)is suitable for TN-S,TN-C-S,TT,I Tect.Power supply system of AC 50/60 HZ,=380V,installed on joint of LAP1 or LPZ2 and LPZ3,it’s design according to IEC61643-1,GB18802.1 , it’s adopts 35mm standard rail,there is a failure release mounted on the module of suge protective device. When the SPD fails in breakerdown for over-heat and over-current,the failure erelease will help electric device separate from the power system and give the indication signal, green means abnormal, it’s also could be replaced for the module when has operating voltage. 
ANT1-A50 series of graphite gap type surge protective device(a Lightning arrester, 10/35 μs waveform) 3 according to IEC and GB standards.
Equipment system used in high risk area of the power supply of the first primary surge protection. Can prevent lightning strike, all kinds of surge current, pass A combination of different number of suitable to single-phase. Three-phase power supply line. dieModular design, standard 35mm rail mounted, installed in the building The total power distribution cabinet(box),outdoor distribution cabinet(box),with lightning current high. The discharge capacity,free wheeling,single module maximum impulse current (10/35 μS)Sbranc Don’t reach limp=15KA,limp=25KA,limp=35KA ,limp=50KA maxim umdischarge current (8/20 μS) Can reach Imax=100KA,Imax=150KA,Imax=160KA,Imax=200KA. 