34-Yr Expertise, 100K+ Units/Year

Since 1992, ZHNYU ELECTRIC has focused on low-voltage electrical components, including load isolating switches, fuse-type isolating switches and isolating switch fuse groups. This depth matters in power distribution, industrial control and new energy fields, where safety isolation and visible break are critical. Over 34 years we built 100+ production equipment units inside a 10,000+ square meter facility, enabling annual output of 100,000+ isolator units. Every isolator undergoes routine dielectric and temperature-rise testing, supporting a documented quality record for buyers in 60+ export countries. Real projects prove the value: a 60 MW photovoltaic plant in Dubai used our fuse-type isolating switches in 15 combiner boxes with zero failures after 18 months.

As a China isolator manufacturer, we engineer isolating switches around real operating conditions, not catalog assumptions. Photovoltaic combiner boxes need DC ratings, dust tolerance and 55C performance; petroleum and chemical plants require robust contacts and clear break indication; railway signaling rooms demand stable low-voltage isolation. Our engineering team matches current ratings, mounting styles, handles, auxiliary contacts and fuse combinations to each scenario. Data from field projects guides improvements: after deploying isolating switch fuse groups on 22 motor feeders in Kazakhstan, customer downtime fell 36% and maintenance hours dropped by 1,200 per year.