The YK3-10CD/630A is an indoor high-voltage load switch designed for 12 kV, 50 Hz electrical systems. It is equipped with a CS6-1 manual operating mechanism for connecting, disconnecting, and isolating circuits under no-load conditions, and is suitable for indoor installation in non-hazardous environments.
| Type | Nominal value of the product Voltage(kV) | Nominal value of the product Voltage(V) | Heat stabilizing current 4 seconds (ka) | Dynamic Steady current (ka) |
| YK3-10D/630A | 12 | 400 | 12.5 | 31.5 |
| YK3-10D/1250A | 12 | 630 | 20 | 50 |
| YK3-10CD/630A | 12 | 1000 | 31.5 | 80 |
| YK3-10CD/1250A | 12 | 1250 | 40 | 100 |
Height above sea level: not more than 1000m;
Air temperature: -25 degrees ~+40 degrees;
Relative humidity: average BMS not more than 95%, average daily not more than 90%;
Earthquake intensity: no more than 8 degrees;
Location of installation: no place for fire, flammable, explosive, serious pollution, chemical corrosion and strongvibration.
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