Outdoor Vacuum Circuit Breakers
- Rated Voltage: 15.5 kV / 27 kV / 38 kV
Rated Current: 1200 A / 2000 A / 3000 A
Short-Circuit Breaking Current: 25 kA / 31.5 kA / 40 kA
BIL: 95 kV / 125 kV / 170 kV
Insulation: Polymer / porcelain bushings; Live-tank / pole-mounted
Operating Mechanism: Magnetic / spring type
Enclosure: NEMA 4X weatherproof; Optional Type 2B arc-resistant
Introduction
Outdoor Vacuum Circuit Breakers (ANSI/IEEE Standard)
Product Introduction
Our outdoor vacuum circuit breakers are engineered for medium-voltage (MV) overhead lines, distribution substations, and utility/industrial outdoor applications, fully designed and tested to meet IEEE C37.04 / C37.06 / C37.09 / C37.20.7 and ANSI standards. Adopting advanced vacuum interruption technology and SF6-free solid insulation, they deliver superior reliability, low maintenance, and long service life under harsh outdoor conditions—ideal for smart grid, renewable interconnection, and feeder protection/sectionalization.
