EV12s is a 12kV indoor vacuum circuit breaker developed and designed by Schneider Electric of France. It has outstanding quality, leading technology, flexible configuration, safety and reliability, and green environmental protection. It is suitable for medium-voltage distribution network protection and control in the fields of energy and infrastructure, industry, commercial and residential buildings.
The EV12s series is Schneider Electric's 12 kV indoor vacuum circuit breaker line, offered in hand‑carriage and fixed types for a wide range of medium‑voltage distribution applications such as power plants, industrial facilities, commercial buildings and residential complexes. It features flexible configurations, low maintenance, and compliance with Chinese GB and international IEC standards.
Technical innovations include a reinforced longitudinal magnetic field arc‑quenching chamber, high‑quality copper‑chromium contacts, and APG casting for improved durability. The guide lists product structure, model designations, accessories, ordering tables, and the standards and quality‑control tests that each unit undergoes. This manual is written in Chinese.
| Rated Voltage | 12 kV |
|---|---|
| Rated Current Options | 630 A, 1250 A, 1600 A, 2000 A, 2500 A, 3150 A, 4000 A |
| Rated Short‑Circuit Breaking Current | 25 kA, 31.5 kA, 40 kA |
| Applicable Standards | IEC 62271-100, IEC 60694, GB1984‑2003, GB/AT11022‑1999, DLAT 402‑1999, DLA 403‑2000, DLAT 593‑2006, JBAT 3855‑1996 |
The EV12s is rated at 12 kV and is available in current ratings of 630 A, 1250 A, 1600 A, 2000 A, 2500 A, 3150 A, and 4000 A.
The EV12s complies with IEC 62271‑100, IEC 60694, GB1984‑2003, GB/AT11022‑1999, DLAT 402‑1999, DLA 403‑2000, DLAT 593‑2006 and JBAT 3855‑1996.