Iterative Upgrade of ZW32‑12 Outdoor Vacuum Circuit Breaker for Renewal of Aged Urban‑Rural Distribution Network Equipment

2026-09-05 15:16:28

The centralized renewal of aging equipment is underway for domestic urban‑rural distribution networks, generating growing demand for pole‑mounted outdoor switchgears. Hongsu Electric ZW32‑12 and ZW32‑12G series outdoor high‑voltage vacuum circuit breakers have completed process upgrades and been widely deployed in urban‑rural distribution‑network renovation projects.

ZW32‑12 series is 12 kV pole‑mounted switchgear adopting vacuum arc‑extinguishing technology with short‑circuit and overload breaking capacity. It can be installed on utility poles or in outdoor switch houses to withstand rain, snow and sand‑dust conditions. The upgraded version optimizes sealing performance and anti‑condensation capability, and can be matched with power‑distribution automation terminals to support remote switching‑on/off and fault location.

Large quantities of early‑stage pole‑mounted switches have reached service life, creating a broad replacement market. Featuring stable performance and cost‑effective solutions, Hongsu ZW32‑12 series serves county‑level and rural power‑grid renovation and ensures reliable power supply for urban and rural areas.