Vacuum Circuit Breaker (VCB)

Features

• Rated short-circuit withstand characteristics : 3sec
• Rated operating sequence : O-0.3s-CO-15s-CO
• Type test level : M2, E2(List1), C2
• Compatible with the existing model
• Various cradle type : E, F and G type
• Control voltage
  • DC 24~30V, DC 48~60V, DC 110V, DC 125V, DC 220V
  • AC 48V, AC 100~130V, AC 220~250V
• Accessories
  • Closing spring contact , UVT, Secondary trip coil, Current trip coil, Trip Latch Checking S/W(Ready to Close S/W), Position S/W
  • Key lock, Button lock, Button cover Padlock, UVT Time Delay Controller, Lifting hook, CTD
• Draw in/out indication
• Standard and certification
  • IEC 62271-100(2008.04) [M2, C2, E2(List1)]
  • Type tested in an Enclosure
  • Type tested by KERI

Characteristics

Low duty

• Rated short time : 3 sec
• Operation sequence : O-0.3s-CO-15s-CO
• Mechanical endurance : M2
• Electrical endurance : E (List 1)
• Capacitive current breaking capacity : C2
• Mechanical / Electrical life cycle (time) : 30,000
• Cradle : Fixed type, E type, F type, G type
• Control voltage : DC 24~30V, DC 48~60V, DC 110V, DC 125V, DC 220V, AC 48V, AC 100~130V, AC 220~250V

Mid duty

• Rated short time : 3 sec
• Operation sequence : O-0.3s-CO-15s-CO
• Mechanical endurance : M2
• Electrical endurance : E2 (List 3)
• Capacitive current breaking capacity : C2
• Mechanical / Electrical life cycle (time) : 30,000
• Cradle : Fixed type, E type, F type, G type, H type
• CB Compartment (Box type cradle) for MCSG
• Control voltage : DC 24~30V, DC 48~60V, DC 110V, DC 125V, DC 220V,AC 48V, AC 100~130V, AC 220~250V

High duty

• Rated short time : 3 sec
• Operation sequence : O-0.3s-CO-3min-CO
• Mechanical endurance : M2
• Electrical endurance : E2 (List 3)
• Capacitive current breaking capacity : C2
• Mechanical / Electrical life cycle (time) : 20,000
• Cradle : Fixed type, K type, H type
• CB Compartment (Box type cradle) for MCSG
• Control voltage : DC 48V, DC 110V, DC 125V, DC 220V, AC 48V, AC 110V, AC 220VRatings

Low duty

Ur(kV)	Isc(kA)	Ir(A)
7.2	8	400
	12.5	630

Mid duty

Ur(kV)	Isc(kA)	Ir(A)
7.2	20	630
		1250
		2000
	25	630
		1250
		2000
12	20	630
		1250
		2000
	25	630
		1250
		2000
17.5	20	630
		1250
		2000
	25	630
		1250
		2000

High duty

Ur(kV)	Isc(kA)	Ir(A)
7.2 12 17.5	50	1250
		2000
		2500
		3150
		4000
12	25	2500
	31.5	1250
		2000
		3150
	40	1250
		2000
		3150
36	25	1250
		2000
		3150
	31.5	1250
		2000
		3150
	40	1250
		2000
		3150
40.5	25	1250
		2000
		3150
	31.5	1250
		2000
		3150