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Vacuum Interrupters for Isolating Switches:TF-12/630-20F
Rated  Current (A) 630
Rated Voltage (KV) 12
Rated Short-time Withstand Current (KA) 20
Rated Short-time(1min) Power-Frequency Withshand Voltage 42
Rated Lightning Impulse Withstand Voltage 75
Mechanical Life (Times) 10000
external diameter 75
Installation Height 170
TF-12/630-20F