Home > Circuit Breakers >

Withdrawable Solid Sealed Pole VCB Circuit Breaker 20KA Breaking

Name: Withdrawable Solid Sealed Pole VCB Circuit Breaker 20KA Breaking
Brand: KNKONG
Price: 1 USD

Withdrawable Solid Sealed Pole VCB Circuit Breaker 20KA Breaking

Categories	VCB Circuit Breaker
Brand Name:	KNKONG
Model Number:	VS1-12
Certification:	CB,ISO,IEC
Place of Origin:	China
MOQ:	1
Payment Terms:	L/C, T/T, Western Union
Supply Ability:	1000 Unit per month
Delivery Time:	15 working days
Packaging Details:	Standard export packaging
Using Voltage:	12KV
Running Current:	630A 1250A 1600A 2000A
Breaking capacity:	20KA
Type:	withdrawable
Original:	Zhengzhou, CHINA
Manufactory:	KNKONG-ELECTRIC

Contact Now

Add to Cart

Company Info.

Knkong Electric Co.,Ltd

View Contact Details

Product List

Haven't found right suppliers
Our buyer assistants can help you find the most suitable, 100% reliable suppliers from China.
And this service is free of charge.
we have buyer assistants who speak English, French, Spanish......and we are ready to help you anytime!

Submit Buying Request

Product Details
Company Profile

Withdrawable Solid Sealed Pole VCB Circuit Breaker 20KA Breaking

VS1 series Withdrawable Solid sealed pole VCB vacuum circuit breaker 20KA breaking

Voltage: 12KV-24 KV

Current: 630-1250A-1600A-2000A

Breaking current: 20KA

Type: withdrawable/fixed

Product overview

Secondary circuit

Vacuum circuit breaker is an indoor switchgear for a power system with a three-phase AC 50Hz rated voltage of 12KV. The civil melting vacuum circuit breaker is used as a protection and control unit for power grid equipment and power equipment in industrial and mining enterprises. It is suitable for places that require frequent operation under rated working current, or where short-circuit current is frequently interrupted.

Technical Parameters

No.	Item		Unit	Parameter
1	Rated voltage		KV	12
2	Rated frequency		Hz	50/60
3	Rated insulation level	1min power frequency withstand voltage(r. m. s)	KV	42(phase-to-phase, phase-to-earth) 48(across the isolating distance)
		Lighting impulse withstand voltage (peak)		75(phase-to-phase, phase-to-earth) 85(across the isolating distance)
4	Rated current		A	630	630		1250		1600
				1250	1250		1600		2000
							2000		2500
							2500		3150
									4000
5	Rated short-circuit breaking current		KA	20	25		31.5		40
6	Rated short-time withstand current			20	25		31.5		40
7	Rated short-circuit marking current			50	63		80		100
8	Rated peak withstand current			50	63		80		100
9	Rated duration of short-circuit		s	4
10	Rated operating sequence			O-0.3s-O/C-180s-O/C
11	Breaking times of rated short-circuit current		Times	30/20 times(40KA)
12	Mechanical endurance		Ops	20000
13	Rated single capacitor bank breaking current		A	630
14	Rated back-to-back capacitor bank breaking current			400
15	Double-earth fault breaking current			27.4
16	Allowable maximum contact erosion		mm	3
17	Clearance between open contacts			10±1
18	Over stroke			3.5±0.5
19	Non-simultaneity of 3-phase opening and closing		ms	≤2
20	Bounce duration of contact closing			≤2
21	Average breaking speed (instant breaking 6mm)		m/s	1.1±0.2
22	Average making speed			0.8±0.2
23	Making time		ms	≤100
24	Breaking time			≤50
25	Resistance of each phase main circuit		μ Ω	630A			≤50
				1250A			≤45
				1600A~2000A			≤35
				≥2500A			≤25
26	Contact breaking bounce amplitude		mm	≤2
27	Rated operating voltage	Rated operating voltage(V)AC/DC	V	24*		110		220
		Scope of normal operation voltage		Opening:65%-120% rated voltage, in case the voltage is lower than 30% rated voltage, opening operation is not allowed
28	Rated voltage of energy storage motor		V	AC110/220,DC110/220
29	Energy storage time		S	≤15

Product Tags:


*From:	Your email address is incorrect!
*To:	Knkong Electric Co.,Ltd
*Subject:	Subject is empty!
*Message:	For the best results, we recommend including the following details: -Self introduction -Required specifications -Inquire about price/MOQ Characters Remaining: (0/3000) Please enter 20 to 3000 characters to contact this supplier!

Withdrawable Solid Sealed Pole VCB Circuit Breaker 20KA Breaking

Withdrawable Solid Sealed Pole VCB Circuit Breaker 20KA Breaking

Withdrawable Solid Sealed Pole VCB Circuit Breaker 20KA Breaking

Sealed Pole VCB Circuit Breaker

Withdrawable Solid VCB Circuit Breaker

20KA Breaking VCB Circuit Breaker

Withdrawable Solid Sealed Pole VCB Circuit Breaker 20KA Breaking

Knkong Electric Co., Ltd (Zhengzhou Knkong Mechanical And Electrical Co., Ltd)was established in 2012. A wholly-owned subsidiary of Henan Sanhe Electric Group. We are mainly responsible for overseas market exporting, electronic components, and technology import.