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Vacuum Interrupters for Circuit Breakers:TD-12/1250-20
Rated  Current (A) 1250
Rated Voltage (KV) 12
Rated Breaking Current 20
Rated Breaking Current Times 30
Rated Short-time(1min) Power-Frequency Withshand Voltage 42
Rated Lightning Impulse Withstand Voltage 75
Mechanical Life 10000
external diameter 80
Installation Height 164
TD-12/1250-20