The vacuum interrupter use the wave ceramic as insulating shell, the contact material is CuCr alloy, the longitudinal magnetic field cup structure, with high breaking capacity, high insulation level, strong arc extinguishing ability, larga vida, small size and easy maintenance, No explosion risk, no pollution, low noise and so on.
Main technical parameter
Valor
Tensión nominal
3.6kV
Corriente nominal
1250A
Frecuencia nominal
50Hz
Rated short-time power frequency withstand voltage (1 min)
25kV
Rated lightning impulse withstand voltage
40 kV
Rated making current
10 kA
Rated switching current
10 kA
Limit switching current
8.0 kA
Limiting abrasion of contacts
3milímetro
Vida mecánica
1000000veces
Electrical endurance AC-4
250000 veces
Closing force due to bellows and atmosphere
80±20N
Force required to hold contacts opening at full stroke
150±30N
Circuit resistance at lowest rated contacts force
≤50μΩ
Weight of movable parts
≤0.5kg
Storage life
20 años
Mechanical Requirements Of Vacuum Circuit Breaker
MECHANICAL DATA RQUIRED FOR THE MATCHEDVACUUM SWITCHGEAR
