ZN12-12/40.5 Series Indoor High Voltage Vacuum Circuit Breaker

Product Detail

ZN12-12/40.5 indoor HV vacuum circuit breaker is a 3-phase AC 50Hz 12kV/40.5KV indoor switch equipment.

♦ Installation way: withdrawable type, fixed type;

♦ Operating mechanism: spring ope rating mechanism;

♦ Application: switchgear GBC-35, JYN1-35.

Environmental Conditions

♦ Ambient temperature: -25°C~+40°C;

♦ Altitude:

♦ Relative humidity: daily average ;

♦ Earthquake intensity:

♦ Places without fire, explosion hazard, serious filthy, chemical corrosion, as well as intense vibration.

Main Technical Parameters

ZN12-12

No	Item	Unit	Value
1	Rated voltage	kV
2	Rated current	A	630, 1250, 1600		1250, 1600,2000, 2500,3150		2000, 2500, 3150,4000
3	Rated short circuit breaking current	kA	20	25	31.5	40	50
4	Dynamic stability current (peak)	kA	50	63	80	100	125
5	4s thermal stability current	kA	20	25	31.5	40/3s	50/3s
6	Rated short circuit making current	kA	50	63	80	100	125
7	Short circuit current breaking number	times	30				12
8	Rated operating sequence		CO-0.3S-CO-180S-CO			O-180S-CO-180S-CO
9	Mechanical life	times	10000			6000
10	Rated current breaking number	times	10000			6000
11	Rated lightning impulse withstand voltage (full wave)	kV	75
12	Rated short time power frequency withstand current (1 min)	kV	42
13	Closing time	ms	≤75
14	Opening time	ms	≤65
15	Power and rated voltage of energy storage motor	W/V	275W/ 110V, 220V
16	Energy storage time	s

No	Item	Unit	Value
17	Rated voltage of closing coil	IN	110V, 220V
18	Rated voltage of opening coil	IN
19	Rated voltage of interlock coil	IN
20	Rated current of release	A	5
twenty one	Rated current of auxiliary switch	A	AC10A, DC5A

ZN12-40.5

No	Item	Unit	Value
1	Rated voltage	kV	40.5
2	Rated current	A	1250, 1600, 2000	1250, 1600,2000,2500
3	Rated short circuit breaking current	kA	20, 25	31.5
4	Dynamic stability current (peak)	kA	50, 63	80
5	4s thermal stability current	kA	20, 25	31.5
6	Rated short circuit making current (peak)	kA	50, 63	80
7	Short circuit current breaking number	times	30	20
8	Rated operating sequence		CO-0.3S-CO-180S-CO
9	Rated lightning impulse withstand voltage (full wave)	kV	180
10	Rated short time power frequency withstand current (1 min)	kV	95
11	Closing time	ms	≤90
12	Opening time	ms	≤75
13	Mechanica! life	times	10000	60000
14	Rated current breaking number	times	10000	60000
15	Rated capacitor bank breaking current	A	630
	Power of energy storage motor	IN	275
17	Rated voltage of energy storage motor	IN	≃110V, 220V
18	Energy storage time	s	≤15
19	Rated voltage of closing and opening coil	IN	≃110V, 220V
20	Rated current of overcurrent release	A	5
twenty one	Rated current of auxiliary switch	A	AC10A, DC5A