China Miniature Circuit Breaker Manufacturer, Supplier, Factory

MCB, the full name is Miniature Circuit Breaker. STB1-63 Miniature Circuit Breaker is an electrical safety device used to protect circuits and equipment, capable of quickly cutting off circuits in the event of an abnormal current (e.g., overloads, short circuits, etc.), thereby preventing electrical fires and equipment damage.

The DC MCB Miniature Circuit Breaker is an electrical switch specially designed for automatic operation in DC circuits. Its main function is to protect automatic devices from overloads, short circuits, and other fault hazards, and to ensure the safety of the entire power system. When the current flowing through the circuit exceeds the rating of the DC MCB, or when leakage current is detected in the circuit, the DC MCB will automatically disconnect the circuit, thus preventing the circuit from being damaged due to overload, short circuit, or leakage.

ST65LE-63series circuit breaker is a multi-function intelligent switch that integrates the functions of electricity metering,overload, short circuit, over and under voltage, leakage, over-temperature protection, remote opening and closing, timing,network communication and so on. It can be widely used in smart power management places such as commerce, agriculture,schools, hospitals, hotels, entertainment places, stations, cultural relics protection units, urban street lamp management andcontrol, and can also be widely used in energy consumption management in industrial and mining enterprises, office buildings and other places.It also can add the function  of over or down voltage protection function ,And rated current or leakage current adjustable function for RCBO

SONTUOEC is one of the Chinese suppliers/manufacturers specializing in the production of various small electrical appliances STM6-63 series high breaking capacity mini circuit breaker is used in AC 50/60Hz, rated voltage of 230V 3, 4 poles 400V, rated current to 63A for overload and short-circuit protection as well as for unfrequented switching under normal case.It is used extensively for industry, commercial and household.This product conform to IEC60898 standard.  

 SONTUOEC is one of the Chinese suppliers/manufacturers specializing in the production of various small electrical appliances STM10-63 Series high breaking miniature circuit breaker has the features of structure advanced, performance reliable, breaking capacity high, appearance elegant and its shell and parts are made of material with impact resistance, strong flame-retardant feature. It is suitable to power system of 50 or 60 frequency, Ue 400V and below, Ui 63A and below. It is mainly applied at office building, residence, for lighting, power distribution and overload and short circuit protection of equipment. Normally, it also can be used as the not frequent transfer of power system. It conforms to the standards IEC60898.1 and GB10963.1

SONTUOEC is one of the Chinese suppliers/manufacturers specializing in the production of various small electrical appliances STM10-63 Series high breaking miniature circuit breaker has the features of structure advanced, performance reliable, breaking capacity high, appearance elegant and its shell and parts are made of material with impact resistance, strong flame-retardant feature. It is suitable to power system of 50 or 60 frequency, Ue 400V and below, Ui 63A and below.It conforms to the standards IEC60898.1 and GB10963.1