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Yueqing Langir Electric Co., Ltd.

DC Circuit Breaker, Electronic Miniature Circuit Breaker, Mini Circuit Breaker manufacturer / supplier in China, offering 1p, 2p, 3p, 4p DC Circuit Breaker Non Polarized DC Breaker with TUV Certificates (1A, 2A, 3A, 4A, 6A, 10A, 154A, 16A, 20A, 25A, 30A, 32A, 40A, 50A, Langir 12mm Momentary Piezo Switch, Popular! ! ! 19mm Aluminum DOT Illuminated Piezo Switch (PZ-A19) and so on.

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Supplier Homepage Product DC Circuit Breaker 1p, 2p, 3p, 4p DC Circuit Breaker Non Polarized DC Breaker with TUV Certificates (1A, 2A, 3A, 4A, 6A, 10A, 154A, 16A, 20A, 25A, 30A, 32A, 40A, 50A

1p, 2p, 3p, 4p DC Circuit Breaker Non Polarized DC Breaker with TUV Certificates (1A, 2A, 3A, 4A, 6A, 10A, 154A, 16A, 20A, 25A, 30A, 32A, 40A, 50A

FOB Price: US $3.33 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $3.33/ Piece
Get Latest Price
Port: Shanghai, China
Production Capacity: 50000 Set/Month
Payment Terms: L/C, T/T, Western Union, Paypal

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Basic Info
  • Model NO.: JB63
  • Arc-extinguishing Medium: Air
  • Structure: MCB
  • Type: Circuit Breaker
  • Mini Circuit Breaker Rated Voltage: 250VDC,500VDC,750VDC,1000VDC
  • Mini Circuit Breaker Brand: Langir
  • Breaking Capacity (ICU): 10 Ka
  • Degree of Protection (IEC 60529): IP40
  • Transport Package: 12 PCS Per Box
  • Origin: Wenzhou
  • Operation: Manual Type
  • Installation: Fixed
  • Poles Number: 4
  • Certification: VDE, CE, TUV
  • Mini Circuit Breaker Rated Current: 1,2,3,4,6,10,16,20,25,32,40,50,63A
  • Mini Circuit Breaker Is_Customed: Yes
  • Standards: IEC 60947-2 ,En 60947-2
  • Trademark: Langir
  • Specification: CE, IEC
  • HS Code: 853620000
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


1p, 2p, 3p, 4p DC Circuit Breaker Non Polarized DC Breaker with TUV Certificates (1A, 2A, 3A, 4A, 6A, 10A, 154A, 16A, 20A, 25A, 30A, 32A, 40A, 50A
1p, 2p, 3p, 4p DC Circuit Breaker Non Polarized DC Breaker with TUV Certificates (1A, 2A, 3A, 4A, 6A, 10A, 154A, 16A, 20A, 25A, 30A, 32A, 40A, 50A1p, 2p, 3p, 4p DC Circuit Breaker Non Polarized DC Breaker with TUV Certificates (1A, 2A, 3A, 4A, 6A, 10A, 154A, 16A, 20A, 25A, 30A, 32A, 40A, 50A
1p, 2p, 3p, 4p DC Circuit Breaker Non Polarized DC Breaker with TUV Certificates (1A, 2A, 3A, 4A, 6A, 10A, 154A, 16A, 20A, 25A, 30A, 32A, 40A, 50A

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