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66 KV, SF6 CIRCUIT BREAKER ONEï‚ Make : Siemens or Equivalent2. 11 KV EXPANSION TYPE CIRCUIT BREAKER (600 Amp) FIVEï‚ Type H 623 b 1010/400 Ampï‚ With hand drive with auxiliary switch, 5 closed contacts,5 normally open contacts and 1 momentary closing contactwith 1 open circuit release (f) for 110 volts DC.ï‚ Rupturing capacity 200 MVAï‚ Operating Voltage 11 KVï‚ Rated current 400 Amps.ï‚ With filling “expensingâ€Âï‚ Rated frequency: 50 C/s.ï‚ Make : Siemens or Equivalent