Ordinary spring mechanism is widely used in vacuum circuit breaker in the market, and its mechanism quality is uneven. Due to the complex mechanism and many parts, the tripping system and transmission system of the original spring mechanism are limited by domestic technology. When it is actually used for one or two thousand times, the operating mechanism of the circuit breaker has continuous faults and the phenomenon of refusing to open and close is serious; The common fault of the circuit breaker is that the opening and closing coil and auxiliary switch are burned, and the circuit breaker often refuses to open and close due to the fault of the half shaft tripping system; Therefore, many domestic manufacturers continue to improve and innovate the organization.

Ordinary spring mechanism is widely used in vacuum circuit breaker in the market, and its mechanism quality is uneven. Due to the complex mechanism and many parts, the tripping system and transmission system of the original spring mechanism are limited by domestic technology. When it is actually used for one or two thousand times, the operating mechanism of the circuit breaker has continuous faults and the phenomenon of refusing to open and close is serious; The common fault of the circuit breaker is that the opening and closing coil and auxiliary switch are burned, and the circuit breaker often refuses to open and close due to the fault of the half shaft tripping system; Therefore, many domestic manufacturers continue to improve and innovate the organization.

VS1SE indoor AC high voltage vacuum circuit breaker is a three-phase AC 50Hz indoor high voltage switchgear with rated voltage of 7.2~ 12(24)kV. The circuit breaker conforms to the national standard GBJ1984 "High Voltage AC Circuit Breaker", JB 3855 "3.6 ~ 40.5 kV ndoor AC High Voltage Vacuum Circuit Breaker" and relevant IEC standards, and has reliable interlocking function. The circuit breaker can

VS1SE-12~ 24kV series side mounting vacuum circuit breaker is an indoor type high voltage equipment with rated voltage 12~ 24kV, 50Hz, suitable for 3-phase power system, used as protection and control electrical equipment. As the special advantages of the vacuum circuit breaker, it is specially used for the location which need frequently operating based on the rated current, or multiple breaking short circuit current.

CKJ20 series vacuum contactor is suitable for AC 50Hz, rated working voltage to 2kV, rated working current to 800A circuit, for long-distance connection and breaking circuits, and can be combined with appropriate thermal overload relay or electronic protector and other related protection devices to form a vacuum electromagnetic starter. Among them, the permanent magnet model is the switch of the low-voltage prepaid metering box.

CKJ3 series is a high-current series, suitable for AC 50Hz-60Hz, rated voltage up to 1140V, up to 2kV. Control circuits with rated currents up to 800-1000-1250A. It is used for making and breaking circuits on and off long distances and for frequently starting AC motors.

ERCKG3 series AC high-voltage vacuum contactor (hereinafter referred to as: contactor) is suitable for AC 50-60Hz, the rated working voltage of the main circuit is 7.2kV, and the rated current is below 630A.

This product is a 12kV model derived from the ERCKG3-7.2kV model. This product is widely used in indoor devices used in power systems with AC 50Hz, rated operating voltage of 12kV, and rated working current up to 630A. It is used to frequently break and close the load circuit of AC high-voltage motors and transformers. At present, many domestic vacuum contactor manufacturers have made this model their flagship product. This product has a clear structure and is easy to debug, maintain and install.

ERJCZ8 series outdoor high-voltage vacuum contactor is suitable for AC 50Hz, rated working voltage to 1140V, rated working power 630A power network, for direct or long-distance connection and disconnection of the main circuit. Because the main contact works in a high vacuum environment, it has the advantages of no exposed arc, small size, light weight, long service life and long maintenance cycle, and is especially suitable for forming various street lamp controllers and working in oil fields, chemical industries and other occasions.

ERJCZ6 series permanent magnet high-voltage vacuum contactor (hereinafter referred to as contactor) is suitable for AC 50Hz or 60Hz, the main circuit rated voltage of 40.5kV, the rated current of 1250A and below in the power system, for direct or long-distance connection and disconnection of the line. It is suitable for the need for three control electrical circuits, with high reliability, long life, less maintenance, safety and other characteristics, this contactor is equipped with AC and DC permanent magnet mechanism.

ERW1-2000 series intelligent universal circuit breaker (hereinafter referred to as circuit breaker) is suitable for AC 50Hz, rated voltage to 660V (690V) and below, rated current 400A~6300A in the distribution network, used to distribute power and protect lines and power equipment from overload, undervoltage, short circuit, single-phase grounding and other faults. The circuit breaker has intelligent protection function, selective protection is accurate, can improve the reliability of power supply, and avoid unnecessary power outages.

ERW3HU series intelligent universal circuit breaker is suitable for AC 50Hz, rated working voltage 400V/690V/800V/1140V, rated working current 7500A and below in the distribution network, used to distribute power and protect lines and power equipment from overload, undervoltage, short circuit, grounding and other faults. The circuit breaker is equipped with a comprehensive range of protection functions with precise selective protection and multi-functional intelligent controllers, especially in distribution networks where it is necessary to improve the reliability of the power supply and avoid unnecessary power outages.