12kV 50Hz Outdoor High Speed Vacuum Circuit Breaker with ISO9001 CE Certification

Honestly, the main catch with this breaker is it's not built for extreme high-altitude installations past 3000m — above that the insulation derates faster than we'd like, so you'd need a different spec for mountain substations or anything above that elevation.

But for the vast majority of outdoor 12kV distribution work — rural grids, small indutrial substations, even some renewable tie-ins — it actually handles everything pretty well, the permanent magnet mechanism cuts maintenance down to basically nothing and teh vacuum arc chamber gives you clean, fast interruption every time.

Rated voltage is 12kV, current options are 630A or 1250A (most buyers go with the 1250A for future load growth), and the breaking capasity sits at 25kA — that's enough for typical feeder protection, and the mechancial life is 10,000 operations so you're not swapping it out every few years.

It's -30°C to +60°C ambient, pollution degree IV so coastal or dusty areas are fine, and the lightning impulse withstand is 75kV phase-to-ground (85kV across the open gap) — we usually have these in stock with a 20-day lead time or so, but confirm if you need express.

Control votage options are 200V, 110V, or 24V DC — the 110V is the most common for retrofit work, but we can supply any of them — and the permanent magnet mechanism means no springs or coils to wear out, which is a pretty big deal for reliability in remote sites.

One thing that catches new buyers off guard is the wet insulation test spec — 34kV for 1 minute — which is lower than the dry 42kV, so if you're in a heavy rain region, just make sure installation follows the clearance guidelines in the manual, that's all.