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Small Size Indoor Vacuum Circuit Breaker Device High Reliability Three Phase

Categories Indoor Vacuum Circuit Breaker
Brand Name: Comking
Model Number: CKVB-12/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: 12kV
Rated Current: 630A,1250A,1600A,2000A,2500A,3150A,4000A
Rated Frequency: 50Hz
Type: Indoor
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Small Size Indoor Vacuum Circuit Breaker Device High Reliability Three Phase

1. CKVB-12/GB is fixed/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

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



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