China ring main unit system Manufacturer, Supplier, Factory

The CFB3 series miniature circuit breaker is suitable for overload and short circuit protection in AC 50/60Hz, rated voltage up to 230V/400V, and rated current up to 125A lines. It can also be used for infrequent on/off operations of the line under normal conditions. The CFB3-63 series circuit breaker is equipped with accessories such as CFB3-F auxiliary contacts, CFB3-FB auxiliary alarm contacts, CFB3-FL shunt release, CFB3-QY undervoltage release, CFB3-GY overvoltage release, CFB3-GQY overvoltage release, etc., providing convenience for the intelligent control of smart buildings. Overvoltage, undervoltage, and overvoltage/undervoltage are electronic release devices that are assembled and combined with circuit breakers or residual current circuit breakers. They are suitable for AC 50Hz/60Hz circuits with a rated voltage of 230V, and are used to protect against overvoltage, undervoltage, and overvoltage caused by line faults, avoiding damage to electrical equipment or inability to function properly due to fluctuations in grid voltage. The circuit breaker has an isolation function. Compliant with standards: GB/T10963.1, IEC60898-1, GB/T20645.

LW8-35 36KV 3150A Outdoor HV SF6 Circuit Breaker is applicable for outdoor 50Hz three-phase HV electric equipment and control & protection of 36kV power distribution & transmission system, as well as measurement and protection via the breaker enclosed current transformer. Breaker is also used for interconnected circuit breakers and switching capacitor banks.

126KV Outdoor high-voltage SF6 circuit breaker is a high-voltage, three-phase AC 50Hz switchgear designed for outdoor use, ideal for controlling and protecting 126kV transmission and transformation systems. Additionally, it can function as a contact breaker and opener group. This circuit breaker utilizes an intelligent arc extinguishing principle that combines thermal expansion with auxiliary blowing, and features a CTB-1 operating mechanism. It meets the standards outlined in GB1984-2003 for AC high-voltage circuit breakers and is compliant with the International Electrotechnical Commission's IEC62271-100:2001 standard for high-voltage AC circuit breakers and control equipment.

The 12KV 1250AMP Vertical break two post isolating switch is specifically designed for use in 10(12,15,24)KV high voltage transmission and distribution lines. These switches serve the purpose of disconnecting and connecting single-phase or three-phase circuits without load and voltage. They are particularly engineered for single-phase application within a three-phase circuit system and are characterized by a simple and cost-effective design, ensuring ease of operation and maintenance. The switches are available in a range of rated current options, including 200400,600,630,800, and 1000,1250 amperes, providing the flexibility to select the most suitable option based on specific requirements. They are comprised of a base, pillar insulator, conductive part, and mechanism part.

The ZN85-40.5/40.5KV Indoor High Voltage Vacuum Circuit Breaker for switchgear, designed for use in AC 50Hz systems with a rated voltage of 40.5kV, is a durable solution for switching load current, overload current, and fault current in industrial and mining facilities, power plants, and substations. Its upper and lower layout structure, reducing its overall depth, is a testament to its durability. The specially designed spring operating mechanism, tailored to suit the upper and lower layout configuration, ensures simplicity, optimal output curve, and performance that aligns with the requirements of 40.5kV vacuum circuit breakers. This circuit breaker's ability to handle frequent operation and its resilience in harsh operating conditions in various environments instill confidence in its durability.

KXAYZC-12 Photovoltaic prefabricated cabin for new energy primary and secondary equipment is a product specially designed by our company for the box change equipment used in the northwest and northeast cold desert and harsh environment. In view of the temperature difference in the region (low cold or high temperature), more dust and other special features, the product uses a fully sealed double-layer temperature insulation split box, and the equipment is fully automatic heating and cooling equipment.