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CKVB-24/GB Electrical Circuit Breaker , Medium Voltage Vacuum Circuit Breaker

CKVB-24/GB Electrical Circuit Breaker , Medium Voltage Vacuum Circuit Breaker

CKVB-24/GB Electrical Circuit Breaker , Medium Voltage Vacuum Circuit Breaker
CKVB-24/GB Electrical Circuit Breaker , Medium Voltage Vacuum Circuit Breaker

Large Image :  CKVB-24/GB Electrical Circuit Breaker , Medium Voltage Vacuum Circuit Breaker Get Best Price

Product Details:

Place of Origin: China
Brand Name: Comking
Certification: Type Test Report
Model Number: CKVB-24/GB

Payment & Shipping Terms:

Minimum Order Quantity: 1set
Price: To be discussed later
Packaging Details: Wooden Packing
Delivery Time: 10-15 work days
Payment Terms: L/C, T/T, Western Union
Detailed Product Description
Rated Voltage: 24kV Rated Current: 630A,1250A
Rated Frequency: 50Hz Type: Indoor
High Light:

vcb circuit breaker

,

3 phase circuit breaker

1. CKVB-24/GB is the withdrawable circuit breaker.

 

2. Technical Data

Description Unit Parameter
Rated voltage kA 24
Rated short-time withstand voltage phase-to-phase phase-to-earth kA 65
open contact kA 79
Rated lighting impulse withstand voltage phase-to-phase phase-to-earth kA 125
open contact kA 145
Rated frequency Hz 50
Pole centre distance mm 210, 230
Rated current A 630 1250
Rated short-time withstand current(4s) kA 25 31.5 25 31.5
Rated peak withstand current kA 63 80 63 80
Rated short-circuit breaking current kA 25 31.5 25 31.5
Rated short-circuit making current kA 63 80 63 80
Rated breaking cable charging current A 25
Rated capacitor bank inrush making current kA 12.5
Rated single capacitor bank breaking current A 630
Rated back to back capacitor bank breaking current A 400
Operating sequence / Opening-0.3s-Closing/Opening-180s-Closing/Opening
Mechanism life times 20000
Opening times for rated current times 20000
Opening times for rated short-circuit current times 50
Clearance between open contacts mm 13±1
Overtravel mm 4±1
Average closing speed m/s 0.8~1.2
Average opening speed m/s 1.1~1.7
Closing time ms 35~70
Opening time ms 20~50
Bounce time for contact’s closing ms ≤2
Asynchronous time for three-phase contacts closing / opening ms ≤1
Allowable accumulated wearing thickness of moving/fixing contact mm 3


3. Standard

---- GB1984-2003

---- IEC60056-2001

---- GB/T16927-1997

----GB/T 4473-2008

---- DL/T403-2000

---- JB/T3855-2008

 

4. Working Condition

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

4.2 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

4.3 Altitude: ≤1000m

4.4 Earthquake intensity: ≤magnitude 8

4.5 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)

 

Contact Details
Zhuhai Comking Electric Co.,Ltd.

Contact Person: Sabrina Yang

Tel: 86 756 8992445

Send your inquiry directly to us