CKVB-24/GB Vcb Breaker , Vcb Vacuum Circuit Breaker Superior Protection Against Dust

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Zhuhai Comking Electric Co.,Ltd.

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Name: CKVB24GB Vcb Breaker Vcb Vacuum Circuit Breaker Superior Protection Against Dust
Brand: Comking
Price: 1 USD

Brand Name : Comking

Model Number : CKVB-24/GB

Certification : Type Test Report

Place of Origin : China

Payment Terms : L/C, T/T, Western Union

Packaging Details : Wooden Packing

MOQ : 1set

Price : To be discussed later

Delivery Time : 10-15 work days

Rated voltage : 24kV

Rated current : 630A,1250A

Rated frequency : 50Hz

Type : Indoor

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1.CKVB-24/GB is the withdrawable circuit breaker.

2. Working Condition

2.1 Ambient air temperature: -25℃～+40℃

2.2 Ambient humidity:

---- relative average daily humidity: ≤95%

---- relative average daily water vapor pressure: ≤2.2kPa

---- relative average monthly humidity: ≤90%

---- relative average monthly water vapor pressure: ≤1.8kPa

2.3 Altitude: ≤1000m

2.4 Earthquake intensity: ≤magnitude 8

2.5 Ambient air doesn’t obviously pollute by dust, smoke, corrosive or combustible gas, vapors or salt spray.

(Exceeding above working condition is available as customized product)

3.Technical Data

Description		Unit	Parameter
Rated voltage		kA	24
Rated short-time withstand voltage	phase-to-phase phase-to-earth	kA	65
	open contact	kA	79
Rated lighting impulse withstand voltage	phase-to-phase phase-to-earth	kA	125
	open contact	kA	145
Rated frequency		Hz	50
Pole centre distance		mm	210, 230
Rated current		A	630		1250
Rated short-time withstand current(4s)		kA	25	31.5	25	31.5
Rated peak withstand current		kA	63	80	63	80
Rated short-circuit breaking current		kA	25	31.5	25	31.5
Rated short-circuit making current		kA	63	80	63	80
Rated breaking cable charging current		A	25
Rated capacitor bank inrush making current		kA	12.5
Rated single capacitor bank breaking current		A	630
Rated back to back capacitor bank breaking current		A	400
Operating sequence		/	Opening-0.3s-Closing/Opening-180s-Closing/Opening
Mechanism life		times	20000
Opening times for rated current		times	20000
Opening times for rated short-circuit current		times	50
Clearance between open contacts		mm	13±1
Overtravel		mm	4±1
Average closing speed		m/s	0.8～1.2
Average opening speed		m/s	1.1～1.7
Closing time		ms	35～70
Opening time		ms	20～50
Bounce time for contact’s closing		ms	≤2
Asynchronous time for three-phase contacts closing / opening		ms	≤1
Allowable accumulated wearing thickness of moving/fixing contact		mm	3

4. Standard

---- GB1984-2003

---- IEC60056-2001

---- GB/T16927-1997

---- GB/T 4473-2008

---- DL/T403-2000

---- JB/T3855-2008

Product Tags:

electrical circuit breaker

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