Vsg1-12 Vacuum Circuit Breaker, Indoor Type

Basic Info

Model NO.	VSG1-12
Poles Number	3 Pole
Type	Circuit Breaker
Function	Short-Circuit
Certification	ISO9001-2000, CCC
Transport Package	Plywood
Trademark	Talent
Origin	China
HS Code	8535210000
Production Capacity	5000 Pieces/Year

Product Description

VSG1-12 Vacuum Circuit Breaker, Indoor type
1.General1.1 Ratings:rated voltage 12KV, rated current 630A~1250A, AC50HZ1.2 Application: for the control and protection of substation and equipments; making and breaking short-circuit current under various operating status of electric network.1.3 Standard: IEC62271-1002. Type and Interpretation3. Working condition3.1 Ambient air temperature: -25~40ºC3.2 Altitude:≤2000m3.3 No operating in such as subject to dust, dirt, smog, corrosive/flammable gas, vapor and salt pollution.3.4 Humidity: Daily average value ≤95% Monthly average value ≤90%3.5 Water vapor pressure: Daily average value ≤2.2Kpa3.6 The external shocking and earthquake could be neglected.3.7 The amplitude of electromagnetic interference in the secondary system ≤1.6KVNote: Customized products are available on your requirements.4.Main technical parameter

Item	Unit	Data
Rated voltage	KV	12
Rated 1min power frequency withstand voltage(vacuum open contacts)insulation Lightening impulse withstand voltage(vacuum open contacts)level	KVKV	4275
Rated frequency	HZ	50
Rated current	A	630,1250
Rated short-time withstan current	KA	16,20,25, 31.5
Rated withstand current(peak)	KA	40,50,63
Rated short-circuit breaking current	KA	16,20,25
Rated short-circuit making current	KA	40,50,63
Rated duration of short-circuit	S	4
Rated operating sequence		O-0.3S-CO-180S-CO
Mechanical life		M2 class(30000times)
Rated voltage of operating power		AC 220/DC 220
Full breaking time		≤70
Electrical life		E2 class

5.Overall and Installation Dimension5.1 overall and installation dimension of fixed type circuit breaker

Alternative parameters table1

Rated voltage	Rated current	Rated short-circuit	P	A	B	D
KV	KA	breaking current, KA	mm	mm	mm	mm
12	630,1250	20,25,31.5	150	20	410	450

Alternative parameters table2

Rated voltage	Rated current	Rated short-circuit	P	A	B	C	D	W
KV	KA	Breaking current, kA	mm	mm	mm	mm	mm	mm
	630	20,25						35
12	630,1250	20,25,31.5,40	150	494	456	490	502	49

Series Number	Symbol	Name	Remark
1	YQ-Y9	Indirect over-current release	Chosen element
2	Y1-Y4	Rectifier element
3	KO	Inner mechanism anti-jumping relay
4	P	Handle operation mechanism
5	Y1	blocking eletromagnet	Chosen element
6	HQ	Closing release
7	TQ	Breaking release
8	M	Energy storing engine
9	S9	assistant switch used at operation position
10	S8	assistant switch used, at test positin	Chosen element
11	S2	Blocking electromagnet assistant switch
12	S1	Inching switch for energy storing
13	QF	assistant switch of breaker contact