Handcart Type Vacuum Circuit Breaker

Kechang's Handcart Type Vacuum Circuit Breaker adopts a modular pull-out structure, with a guide rail and a rocker mechanism, one person can smoothly pull or push the circuit breaker out of the cabinet.There are clear mechanical positioning in the three positions of work, test, and isolation. The secondary plug-in is automatically disconnected and connected with the pull-out, and there is no need to remove additional wires during maintenance.If a spare hand car is configured on site, the faulty unit can be directly replaced, compressing the power failure time from a few hours to tens of minutes.This design is particularly suitable for occasions that require frequent maintenance and high requirements for power supply continuity. It is a typical 12kV retractable vacuum circuit breaker application scenario.

Your project may be distributed in different areas, some are humid, some are dusty, and some have large temperature differences.The protection level of this circuit breaker can reach IP44, the shell is made of corrosion-resistant steel plate, and the sealing strip is tightly structured, which can effectively block the entry of dust and water vapor.The operating temperature range covers -25°C to 40°C, and it can operate stably at a high altitude of 2000 meters and high humidity.The internal insulation system is designed according to Class H (180°C), and the key parts are made of heat-resistant materials such as Nomex paper, which is not easy to age in long-term operation.This kind of environmental adaptability allows it to be used with confidence in outdoor box changes, industrial plants, urban distribution stations and other scenes. It is an IP44 weatherproof circuit breaker in the true sense.

For procurement, the long-term reliability of equipment is directly related to maintenance costs and customer satisfaction.The rated voltage of this Handcart Type Vacuum Circuit Breaker covers 12kV–35kV, the rated current can reach 3150A, and the short-circuit breaking current is up to 40kA, which can meet the typical needs of medium-voltage power distribution systems.The coil adopts oxygen-free copper wire vacuum casting process, flame-retardant insulation materials are used between layers and turns, and the local discharge level is strictly controlled. The mechanical life can reach 30,000 times, the electrical life is 20,000 times, and the overall design life is about 25 years.Each equipment is rigorously tested before leaving the factory, and a complete quality inspection report is provided with the goods. With a 3-year warranty, it can effectively reduce late failures and replacement costs.