Industrial Vcb Circuit Breaker Improve Power Reliability Customizable Design

Brand Name:Comking
Certification:Type Test Report
Model Number:CKVB-12/GD
Minimum Order Quantity:1set
Delivery Time:10-15 work days
Payment Terms:L/C, T/T, Western Union
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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. CKVB-12/GD is fixed/withdrawable circuit breaker.


2. Working Condition

2.1Ambient 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

DescriptionUnitParameter
Rated voltagekV12
Short-time withstand voltagekV42
Lighting impulse withstand voltagekV75
Rated frequencyHz50
Rated currentA630125016002000,25003150,4000
Pole centre distancemm150210150210275210275275275
Rated short-circuit breaking currentkA2531.52531.52531.52531.5404031.54031.54031.54040
Rated short-circuit making currentkA6380638063806380100100801008010080100100
Short-time withstand current(4s)kA2531.52531.52531.52531.5404031.54031.54031.54040
Rated peak withstand currentkA6380638063806380100100801008010080100100
Operating sequenceOpening-0.3s –closing opening-180s –closing opening
Opening timems20~50
Arc timems≤15
Closing timems30~70
Average closing speedm/s0.5~0.8
Average opening speedm/s0.9~1.2
Bounce time for contact’s closingms≤2
Asynchronous time for contact’s closing / openingms≤2
Allowable accumulated wearing thickness of moving/fixing contactmm3


4. Standard

---- GB1984-2003

---- IEC60056-2001

---- GB/T16927-1997

---- GB/T 4473-2008

---- DL/T403-2000

---- JB/T3855-2008



China Industrial Vcb Circuit Breaker Improve Power Reliability Customizable Design supplier

Industrial Vcb Circuit Breaker Improve Power Reliability Customizable Design

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