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

Categories Outdoor Circuit Breaker
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
Rated frequency: 50Hz
Type: Outdoor
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Load Control Air Load Break Switch , High Voltage Load Break Switch Short Circuit Protection

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

Quality Load Control Air Load Break Switch , High Voltage Load Break Switch Short Circuit Protection for sale
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