Yueqing Langir Electric Co., Ltd. >> 2p DC Mini Circuit Breaker From 1A to 63A (JB-2P) , China DC Miniature Circuit Breaker

2p DC Mini Circuit Breaker From 1A to 63A (JB-2P) , China DC Miniature Circuit Breaker

2p DC Mini Circuit Breaker From 1A to 63A (JB-2P) , China DC Miniature Circuit Breaker
Supplier: Yueqing Langir Electric Co., Ltd.
Price: US $ 8.3/Piece
Min Order: 1/Piece
Quantity::
Trade Terms: FOB,CFR,CIF
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Product Specifications

Prod Model: JB-2P
Markets: North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Mini Circuit Breaker Rated Voltage: 1p=250 V DC, 2p=500 V DC 3p=750 V DC, 4p=1000 V DC
Mini Circuit Breaker Rated Current: 6,10,16,20,25,32,40,50,63A
Mini Circuit Breaker Handle Color: Blue
Mini Circuit Breaker Brand: Langir
Mini Circuit Breaker Is Customed: Yes
Breaking Capacity: Low Voltage Circuit Breakers
Operation: Manual Type
Speed: Normal Type Circuit Breaker
Structure: MCCB
Certification: CE

Product Description

The JB is a DC circuit breaker dedicated to multi string photovoltaic installations.

Storage -40 to 85 degree

- This circuit breaker is designed to protect the cables located between each string of photovoltaic modules and the photovoltaic inverter against overloads and short circuits (see application diagram).
- Combined with a switch , the JB will be installed in a string PV protection enclosure at the end of each string of photovoltaic modules.
- It can be locked (by a padlocking device) in OFF position as a safety measure for removal of the PV inverter.
- Since a fault current can flow in the reverse direction to the operating current, the JB can detect and protect against any bidirectional current.
- To ensure the safety of the installation, it is necessary, depending on the various types of application, to combine the JB with:
a residual current device at the AC end
a fault passage detector (insulation monitoring device) at the DC end
an earth protection circuit breaker at the DC end
- In all cases, fast action on site will be required to clear the fault (protection not ensured in the event of a double fault).
- JB is not polarity sensitive: (+) and (-) wires can inversed without any risk.
- The JB is: delivered with three inter-pole barrier to provide increased isolation distance between two adjacent connectors.

Main characteristics

Operating Voltage (Ue)1P=250 V DC, 2P=500 V DC
3P=750 V DC, 4P=1000 V DC
Rated insulation voltage (Ui)1,000 VDC
Breaking capacity (Icu)10 kA
Impulse voltage (Uimp)4 kA
Electrical connectionBy the bottom for In and Out
Number of poles1P, 2P, 3P, 4P
StandardsIEC 60947-2
EN 60947-2

 

Rated service breaking capacity (Ics)100% of the Icu
Endurance (O-C)Electrical1,500 cycles (where L/R=2 ms)
Mechanical20, 000 cycles
  
Mechanical20, 000 cycles
Degree of pollution2
CategoryA (no delay in accordance with IEC / EN 60947-2 standards)
Degree of protection
(IEC 60529)
IP40
TropicalisationRelative humidity: 95% at 55 degree in accordance with
IEC 60068-2 and GB 14048.2 standards
TemperatureOperating-25 to 70  degree
Storage-40 to 85 degree



Established in 2009, Langir Electric Co., Ltd. Specializes in manufacturing low voltage electrical control equipment and components. With these series comprising the majority of our product range, we are now supplying various models of metal pushbutton switch, piezo switch and other electrical components.

With workshop facilities covering an area of 1, 500 square meters and sophisticated manufacturing equipment introduced into our factory, we have gradually set up the system of providing clients with the highest grade products according to the ISO system. With our strict quality self-requirement, we passed CE, RoHS certificate. Reach and National CCC certificate are in progress.

Due to consistent high quality and reasonable prices, our brand LANGIR products have gained an excellent reputation in various markets. From 2009-2012 year, our annual sales value increased 50%-100% year by year.

We are looking forward to being able to cooperate with your company. If you are interested in any of our series or have a customized requirement to complete, please don't hesitate in contacting us.

We sincerely invite you to be our agent.

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