3AV5-12 Indoor AC High-Voltage Vacuum Circuit Breaker

Product Overview

The 3AV5-12 indoor high-voltage vacuum circuit breaker utilizes ABB and SIEMENS solid-sealed insulation technology. It seals the vacuum interrupter and other primary circuit components with epoxy resin, forming a pole with high insulation and mechanical strength, thus preventing adverse operating conditions from affecting the external insulation of the primary circuit, achieving zero maintenance. Equipped with an optimized spring-operated mechanism, it features a simplified structure and stable performance, suitable for use as control and protection of electrical equipment in industrial and mining enterprises, power plants, and substation, and is also ideal for frequently operated environments.

The 3AV5 type side-mounted vacuum circuit breaker features a fixed installation, primarily used in fixed-type switchgears such as ring main units, box-type substations, or various non-standard power supply systems. It employs fixed-sealed pole pieces and a miniaturized operating panel, saving space inside the cabinet.

Technical Specifications