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Three Phase AC Air Load Break Switch , Transformer Load Break Switch 12kV

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Zhuhai Comking Electric Co.,Ltd.

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Three Phase AC Air Load Break Switch , Transformer Load Break Switch 12kV

Name: Three Phase AC Air Load Break Switch Transformer Load Break Switch 12kV
Brand: Comking
Price: 1 USD

Place of Origin : China

Brand Name : Comking

Certification : ISO9001,ISO14001,OHSAS18001

Model Number : CKWZ

Packaging Details : Wooden Packing

Delivery Time : 10-15 work days

MOQ : 1set

Price : To be discussed later

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

Rated Voltage : 12kV

Rated current : 630A,1250A

Rated frequency : 50Hz

Type : Outdor

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1. Description

CKWZ is a three-phase AC outdoor vacuum circuit breaker maximum up to 24kV rated voltage and 50Hz rated frequency.

2. Working Condition

2.1 Ambient air temperature: -45℃～+40℃,daily range of temperature: diurnal variation 25℃

2.2 Relative humidity: daily average data ≤95%, monthly average data ≤90%

2.3 Seismic capacity: ≤magnitude 8, horizontal acceleration ≤ 0.4g, vertical acceleration ≤ 0.2g

2.4 Altitude: ≤1000m

2.5 Pollution classification: IV.

2.6 Wind speed: ≤35m/s

2.7 Applicable in the places without fire, without explosion risk, and without violent vibration

(Exceeding above working condition is available as customized product)

3.Technical Data

Description	Unit	Parameter
Rated voltage	kV	12	24
Rated frequency	Hz	50	50
Rated current	A	630	630
Rated short-time withstand current(4s)	kA	20	20
Rated peak withstand current	kA	50	50
Rated short-circuit making current(peak)	kA	50	50
Rated short-circuit breaking current	kA	20	20
Breaking times for rated short-circuit breaking current	times	30	30
Mechanical life	times	10000	10000
Power frequency withstand voltage(1min)	kV	42/48	50/60
Lighting impulse withstand voltage	kV	75/85	125/145
Clearance between open contacts	mm	9±1	12±1
Withstand voltage for secondary circuit (1 min)	V	2000	2000
Opening speed	m/s	1.2±0.2	1.4±0.25
Closing speed	m/s	0.8±0.2	0.8±0.2
Bounce time for contact’s closing	ms	≤2	≤2
Opening simultaneity for three-phase	ms	≤2	≤2
Loop resistance (without disconnector)	μΩ	<80	<80

4. Standard

---- GB1984-2003

---- GB/T11022-2011

---- GB/T11023-1989

---- GB311.1-1997

---- DL/T593-1996

---- DL/T402-1999

---- GB/T3309-1989

---- DL403-1999

---- IEC62271-100

Product Tags:

outdoor vcb breaker

3 phase breaker

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