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We’re responding to your RFQ for a 3-pole vacuum circuit breaker 11kV up to 33kV systems, fixed instalation with a spring-operated mechanism—pretty standard for distribution substations and industrial switchgear.
It handles 1250A continuous and can break 31.5kA short-circuit current, with a 42kV power frequency withstand and 75kV lightning impulse level, which covers most medium-voltage protection scenarios without needing extra insulation.
Mechanicla life is rated at 30,000 operations (M2) and electrical life hits 10,000 at full rated current (E2), so it holds up well for frequent switching, but it’s not built for high-speed reclosing cycles.
unit weighs about 120 to 180 kg depending on your voltage variant, ships in a fixed IP4X enclosure, and we usually have stock of teh 11kV and 22kV models—lead time for 33kV is roughly 6-8 weeks (check current stock before ordering).
Ambient range goes form -25°C to +40°C, with humidity up to 95% at 20°C, and it’s fine up to 1000m altitude—above that you’d need derating, which isn’t our standdard.
31.5kA breaking is what most buyers look for, but if your system has higher fault levels, this won’t cut it. COA comes with every batch, and our MOQ is 5 units.
This breaker comes in 11kV, 22kV, and 33kV ratings, so you can pick the one that matches your distribution system voltage.
It's certified under ISO9001-2000, CE, and CCC, so you're covered for quality and compliance in most markets.
We typically require a minimum order of 5 units per model variant, but we can discuss smaller orders for first-time buyers or trial runs.
Standard lead time is around 30-45 days after order confirmation, depending on current production load and your specific configuration.
Yes, we supply a full set of quality docs including type test reports, routine test certificates, and insulation level certifications upon request.
