36 KV Switch Gear (Cubicle Type: BAX) with Draw-Out Gas Circuit Breaker. Technical Data Circuit Breaker Type A=630, HB 36. 06. 16 F Rated Voltage 36 KV Rated Impiulse withstand Voltage 170 KV peak Rated power-frequency 70 KV rms Withstand Voltage (IEC Value) Rated current of the Busbars 1250, 1600 A System short Circuit Power 750-1500 KVA ( guide value for 36 KV) Rated peak withstand Current 35-75 KA peak Rated short time current 20. 0ka / 3s Open Installation 630 A Rated Frequency 50 Hz Breaking Current- Symmetrical at 30 / 36 KV 20. 0 / 16. 0 KA Asymmetrical at 30 / 36 KV 21. 1 / 16. 9 KA Rated operating duty (Switching Cycle) 0-3 min-Co-3min-Co Inderrupting Medium SF 6 Normal Pressure 6 Bar