Load Control Air Load Break Switch , High Voltage Load Break Switch Short Circuit Protection

Brand Name:Comking
Certification:ISO9001,ISO14001,OHSAS18001
Model Number:CKWZ
Minimum Order Quantity:1set
Delivery Time:10-15 work days
Payment Terms:L/C, T/T, Western Union
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Verified Supplier
Location: Zhuhai Guangdong China
Address: No.6, Futian Road, Xiangzhou,Zhuhai,China 519000
Supplier`s last login times: within 43 hours
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Product Details

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

DescriptionUnitParameter
Rated voltagekV1224
Rated frequencyHz5050
Rated currentA630630
Rated short-time withstand current(4s)kA2020
Rated peak withstand currentkA5050
Rated short-circuit making current(peak)kA5050
Rated short-circuit breaking currentkA2020
Breaking times for rated short-circuit breaking currenttimes3030
Mechanical lifetimes1000010000
Power frequency withstand voltage(1min)kV42/4850/60
Lighting impulse withstand voltagekV75/85125/145
Clearance between open contactsmm9±112±1
Withstand voltage for secondary circuit (1 min)V20002000
Opening speedm/s1.2±0.21.4±0.25
Closing speedm/s0.8±0.20.8±0.2
Bounce time for contact’s closingms≤2≤2
Opening simultaneity for three-phasems≤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

China Load Control Air Load Break Switch , High Voltage Load Break Switch Short Circuit Protection supplier

Load Control Air Load Break Switch , High Voltage Load Break Switch Short Circuit Protection

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