Hyundai Hat 12 3 Pole Air Circuit Breaker 660V Ac 50/60 Hz 400 A (Not Working)

Hyundai Hat 12 3 Pole Air Circuit Breaker 660V Ac 50/60 Hz 400 A (Not Working)
Hyundai Heavy Industries Co., Ltd.
Hyundai Heavy Electric Co., Ltd.
Air Circuit Breaker
Hat 12
Poles: 3
Operational Volt.(Ue): 660V Ac
Rated Frequency: 50/60 Hz
Rated Current: 1250 A
Standard:
Iec 60947-2. Ansi 37-13
En 60947-2. Vde 0660
Rated                   Ue              With/Without Inst
Breaking            660V          35/35Ka
Capacity(Icu)    550-600V  50/50Ka 
(Ics)=100%(Icu) 220-500V  65/50Ka 
Short Time With-        1Sec  50Ka
Stand Current(Icw)  3Sec  45Ka
Auxiliary Sw
Type: 5A 5B
Magnet Hold Trigger
Over-current Trip
Aor-1S-al
Base Cur. Io: 400 A
Ct Rating Ict: 630/5A
Rated Freq.: 50.60Hz
Korea
Weight: 76.500 Kg