12kv Vacuum Circuit Breaker - High Voltage Electrical Switchgear for Power Distribution

For a single unit, pricing lands around $2,800, but if you’re buying for a project or stocking up, we drop that to about $2,450 in the mid range, and at 50 units or so it’s under $2,200 each — that’s where the cost-effectiveness really kicks in.

It’s built for 12kV distribution systems pulling up to 1250A, and what it does is handle a 31.5kA short circuit without flinching, which covers most industiral or substation feeder panels, but it’s not suited for high-frequency switching or very low-altitude installations above 1000m without derating.

You’re probably wondering about trust, so the thing is, we’ve got CE, CCC, and ISO9001 stamped on it, plus it complies with IEC 62271 and GB/T 1984, so third-party tests are routine and we usually have stock, but confirm lead time — it’s about 20 days form order.

spring stored energy mechanism gives a closing time of 100ms or less, and opening under 60ms, which matters when you’ve got motors or transformers downstream, and the vacuum arc quenching (typically 42kV power frequency rated) means no oil or SF6 mess.

Mechancial life is 10,000 operations, but electrical life is only 100 full load interruptions (that’s normal for this class), so if your appliction sees daily fault clearing, you’ll want to budget for contact maintenance or a spare unit.

We’ve had buyers use these for years in mining and data centers, and one detail nobody mentions is the ambient temp range (-25°C to +40°C) with 95% humidity — that actually limits outdoor use without a weatherproof enclosure, so plan your housing accordingly.