China Kyn28-12 Indoor Metal-Enclosed Removable Electrical Switchgear for Medium Voltage for High-Tech Development Zone, Find details about China Power Supply, Circuit Breaker from Kyn28-12 Indoor Metal-Enclosed Removable Electrical Switchgear for Medium Voltage for High-Tech Development Zone
No | Item | Unit | Parameter | ||
1 | Rated voltage | KV | 3.6,7.2/12 | ||
2 | Rated frequency | Hz | 50 | ||
3 | Rated current of breaker | A | 630,1250,1600,2000,2500,3150 | ||
4 | Rated breaking active load current | A | 630,1250,1600,2000,2500,3150 | ||
5 | Rated closed loop breaking current | KA | 20,25,31.5,40 | ||
6 | Rated current under the cable charging breaking current | KA | 50,63,80,100 | ||
7 | Rated short-circuit closing current(peak) | KA | 20,25,31.5,40 | ||
8 | Rated short-circuit breaking current | KA | 50,63,80,100 | ||
9 | Rated insulation level | 1 min frequency withstand voltage | Pole,the pole pair | KV | 24,32,42 |
break between | KV | 24,32,48 | |||
Lighting impulse withstand voltage(peak) | Pole,the pole pair | KV | 40,60,75 | ||
break between | KV | 46,70,85 | |||
10 | Degree of protection | KV | Enclosure IP4X,compartment,circuit breaker door open when IP2X |