Description
This is a environmental disconnect switch for use with environmentally friendly circuit breaker switches, sealed in a dry gas filled stainless steel enclosure. The three-position switch has three positions of closing, isolating and earthing, adopting rotary operating mechanism, reliable positioning of each position and visualisation of the break. The vacuum circuit breaker mechanism adopts modular design, with a small number of mechanism parts, compact structure, low operating power and stable performance. There is a perfect mechanical interlocking between the disconnecting switch and the vacuum circuit breaker to ensure the safety of operation.
Technical Parameters
| Rated voltage kV | 12 |
| Rated current A | 630 |
| Rated frequency Hz | 50 |
| Rated short-time withstand current duration s | 4/3 |
| Rated short-time withstand current kA | 20/25 |
| Rated peak withstand current (kA) peak | 50/63 |
| Rated short-time frequency withstand voltage (phase-to-phase and phase-to-ground) kV | 42 |
| Rated lightning impulse withstand voltage (phase-to-phase, relative ground) kV peak | 75 |
| Rated short-time frequency withstand voltage (at break) kV | 48 |
| Rated lightning impulse withstand voltage (interruption) kV peak | 85 |
| Rated operating sequence | O-0.3s-CO-180s-CO |
| Rated filling pressure of dry air (gauge pressure at 20C) MPa | 0.02 |
| Cabinet enclosure protection class | IP4X |
| Enclosure protection class | IP67 |
Form and mounting dimensions
