China 3 pole miniature circuit breaker Manufacturer, Supplier, Factory

The DJK series Electric energy Metering box is a versatile and reliable solution for electricity metering in high-rise buildings and residential areas. With a maximum current capacity of 63A, it can accommodate a variety of household needs. Additionally, its design can be customized to fit specific requirements, including the number of meter positions and external installation features. This meter box is ideal for households that require accurate and efficient electricity metering.

The 126KV 1600A Outdoor high-voltage SF6 tank circuit breaker is a sophisticated electrical switching solution designed to safely disconnect high-voltage electrical paths in emergency situations or for regular maintenance. It employs sulfur hexafluoride (SF6) gas as a fire-suppressing and insulating agent, housed within a hermetically sealed container. This particular type of circuit breaker is purpose-built for exterior installation in electrical substations and power distribution systems.

This circuit breaker is a multifunctional low-voltage protection device designed for distribution systems with AC 50Hz, rated voltage below 400V, and rated current below 63A. It is suitable for industrial, commercial, and civilian power networks. Its core functions integrate security protection, equipment protection, and intelligent monitoring, which can significantly improve the reliability and operation efficiency of the distribution system. Core functional highlights: 1. Safety protection 1) Personal safety assurance: Through high-precision residual current detection technology (RCD), indirect contact protection is provided, effectively reducing the risk of electric shock. 2) Equipment and line protection: Integrated overload and short circuit dual protection mechanism, accurately cutting off fault current, avoiding electrical fires and equipment damage. 2. Intelligent monitoring and early warning 1) Leakage pre-alarm function: Real-time monitoring of residual current in the circuit. When abnormal leakage (such as insulation degradation) is detected, an alarm signal is output through a passive normally open contact (dry contact). It can be linked to SCADA, fire protection system or sound and light alarm device without an external power supply to achieve early warning of faults and ensure power supply continuity. 2) Flexible threshold configuration: supports custom setting of leakage alarm values, adapting to sensitivity requirements of different scenarios (such as 30mA/100mA adjustable). 3. Diversified control ability Line and motor control: suitable for occasional switching operations of distribution lines or intermittent start-stop control of small motors, meeting the requirements of nonfrequent operation scenarios. Typical application scenarios: 1) Key power supply areas: places with high requirements for power continuity, such as data centers and hospital IT systems, have alarm nontrip mechanisms to avoid accidental power outages. 2) Equipment protection: Front-end protection for devices such as frequency converters and outdoor electrical cabinets that are susceptible to electrical leakage or environmental impact. 3) Intelligent operation and maintenance: By connecting to the building management system (BMS) through touch signals, remote monitoring and preventive maintenance can be achieved. Product advantages: 1) High reliability: thermal magnetic double trip structure, balancing overload delay protection and short-circuit instantaneous action characteristics. 2) Flexible expansion: an optional communication module, supporting remote status monitoring and fault diagnosis. 3) Easy installation: Standardized modular design, compatible with mainstream rail installation, suitable for compact distribution boxes. Summary: This circuit breaker is designed with the concept of "warning first, safety oriented", which ensures the safety of personnel and equipment while maximizing the stability of system operation. It is the preferred protective device for modern intelligent distribution systems.

The 40.5KV 1600A Outdoor high-voltage SF6 tank circuit breaker is a customized electrical switchgear designed to disconnect high-voltage electrical paths in emergency situations or for scheduled maintenance. It employs sulfur hexafluoride (SF6) gas as the medium to extinguish electrical arcs and provide insulation, which is safely confined within a sealed enclosure. This particular type of circuit breaker is purposely designed for exterior deployment in electrical substations and power transmission systems.

The S-M series three-phase oil-immersed transformer is a versatile solution widely used in various industries. It features a fully oil-filled and sealed corrugated oil tank with an elastic oil tank shell that allows for oil expansion and effective heat dissipation. The transformer includes a new insulation structure for improved short-circuit resistance, a core composed of high-quality cold-rolled silicon steel sheet, and high-voltage and low-voltage wind of oxygen-free copper wires arranged in a multi-layer cylindrical design. Furthermore, all, minimal loss, and potential for significant energy and cost savings, offering considerable social advantages. It is extensively utilized in power plants, substations, industrial facilities, mining operations, ports, and airports, playing a crucial role in various applications.

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.