ABB HD4/P 1250A HD4 Circuit Breaker

ABB HD4/P 1250A HD4 Circuit Breaker

Specifications :

• MASS 120 kg
• VOLTAGE 12 kV
• LIGHTNING IMPULSE WITHSTAND VOLTAGE 75 kV
• POWER FREQUENCY WITHSTAND VOLTAGE 28 kV
• FREQUENCY 50/60 Hz
• NORMAL CURRENT 1250 A
• SHORT TIME WITHSTAND CURRENT 31, 5 kA
• DURATION OF SHORT CIRCUIT 3 s
• SHORT CIRCUIT BREAKING CURRENT 31, 5 kA
• MAKING CAPACITY (PEAK VALUE) 80 kA
• AT THE VOLTAGE OF 12 kV
• D.C. COMPONENT <= 35 %
• CABLE-CHARGING BREAKING CURRENT 25 A
• SF6 FILLING PRESSURE AT 20^ C 0,380 MPa
• SF6 MASS FOR CIRCUIT-BREAKER 0,225 Kg
• OPERATING SEQUENCE O-0, 3S-CO-15S-CO