Sign In | Join Free | My frbiz.com
frbiz.com
Products
Search by Category
Home > Circuit Breakers >

Reliable Safe 3 Phase Circuit Breaker High Mechanical Service Life Maximize Output

Categories Indoor Vacuum Circuit Breaker
Brand Name: Comking
Model Number: CKVB-12/GD
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
  • Haven't found right suppliers
  • Our buyer assistants can help you find the most suitable, 100% reliable suppliers from China.
  • And this service is free of charge.
  • we have buyer assistants who speak English, French, Spanish......and we are ready to help you anytime!
Submit Buying Request
  • Product Details
  • Company Profile

Reliable Safe 3 Phase Circuit Breaker High Mechanical Service Life Maximize Output

1. Withdrawable circuit breaker CKVB-12/GD


2. 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

3. Working Condition

3.1 Ambient air temperature: -25℃~+40℃


3.2 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


3.3 Altitude: ≤1000m


3.4 Earthquake intensity: ≤magnitude 8


3.5 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)


4. Standard

---- GB1984-2003

---- IEC60056-2001

---- GB/T16927-1997

---- GB/T 4473-2008

---- DL/T403-2000

---- JB/T3855-2008



Quality Reliable Safe 3 Phase Circuit Breaker High Mechanical Service Life Maximize Output for sale
Send your message to this supplier
 
*From:
*To: Zhuhai Comking Electric Co.,Ltd.
*Subject:
*Message:
Characters Remaining: (0/3000)
 
Inquiry Cart 0