ZN73-12 Vacuum Circuit Breaker (VS1)
ZN73-12 Vacuum Circuit Breaker (VS1)
ZN73-12 vacuum circuit breaker, a kind of indoorAC high voltage vacuum breaker, is ideal for switching over loads of variouscharacters and also forfrequent operation in power systems of 3-phase, AC 50 Hz and with rated voltage up to 24kV.
It can be used for protecting and controlling of electrical equipment in industrial plants, mines, power generation plants and substations.
Technical specifications
| Item | Unit | Data | |||
| Rated voltage | kV | 12 | 17.5 | 24 | |
| Rated insulation level | 1 min power frequency withstand voltage | kV | 42 | 50 | 65 |
| Rated lighting impulse withstand voltage | kV | 75 | 95 | 125 | |
| Rated frequency | Hz | 50 | 50 | 50 | |
| Rated current | A | 630, 1250, 1600, 2000, 2500, 3150 | 630, 1250, 1600, | 630, 1250, 1600, 2000, 2500, 3150 | |
| Rated short-time withstands current(RMS) | kA | 16, 20, 25, 31.5, 40 | 20, 25, 31.5 | 20, 25, 31.5 | |
| Rated active on-load breaking current | kA | 40, 50, 63, 80, 100 | 50, 63, 80 | 50, 63, 80 | |
| Rated withstands current (peak) | kA | 16, 20, 25, 31.5, 40 | 20, 25, 31.5 | 20, 25, 31.5 | |
| Rated short-time breaking current | kA | 40, 50, 63, 80, 100 | 50, 63, 80 | 50, 63, 80 | |
| Rated short-time continuous time | s | 4 | |||
| Rated operation sequence | O-0.3s-CO-180s-CO | ||||
| Mechanical life | Times | M2 | |||
| Rated operation power supply voltage | V | AC220/DC220 | |||
| Full breaking time | Ms | ≤70 | |||
People Group is a professional manufacturer and supplier ofvacuum circuit breaker, based in China. Our products mainly includedistribution box, AC contactor, relay, master switch and circuit breakers. Inorder to ensure our customers find the product they require, we also offermotor protection circuit breaker, molded case circuit breaker and earth leakagecircuit breaker, etc. Meanwhile, we can also design and manufactureelectrical devices according to customers’ requirements and offer equipmentinstallation and OEM services.
If youhave any questions, please contact us.
Links：https://www.globefindpro.com/products/104544.html
