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Yueqing Langir Electric Co., Ltd.

DC Circuit Breaker, Circuit Breaker, MCB manufacturer / supplier in China, offering 1p Non Polarized TUV Certificate 1~63A DC Mini Circuit Breaker, 12mm Stainless Steel Metal Momentary Waterproof Push Button Switch, 19mm Metal LED Momentary Stainless Steel Push Button Switch (L19A) and so on.

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Supplier Homepage Product DC Circuit Breaker 1p Non Polarized TUV Certificate 1~63A DC Mini Circuit Breaker

1p Non Polarized TUV Certificate 1~63A DC Mini Circuit Breaker

FOB Price: US $3.2 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $3.2/ Piece
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Production Capacity: 50000 Set/Month
Payment Terms: L/C, T/T, Paypal

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Basic Info
  • Model NO.: JB1-63
  • Operation: Manual Type
  • Arc-extinguishing Medium: Air
  • Structure: MCB
  • Type: Circuit Breaker
  • Certification: VDE, CE, TUV
  • Rated Current: 6,10,16,20,25,32,40,50,63A
  • Brand: Langirele
  • Application: Low Voltage
  • Specification: CE, IEC
  • HS Code: 853620000
  • Breaking Capacity: Low Voltage Circuit Breakers
  • Speed: Normal Type Circuit Breaker
  • Installation: Fixed
  • Poles Number: 1
  • Function: Conventional Circuit Breaker
  • Rated Voltage: 230/440V
  • Handle Color: Blue
  • Is_Customed: Yes
  • Trademark: Langir
  • Origin: Wenzhou, China
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)
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 Non Polarized TUV Certificate 1~63A DC Mini Circuit Breaker
1p Non Polarized TUV Certificate 1~63A DC Mini Circuit Breaker
1p Non Polarized TUV Certificate 1~63A DC Mini Circuit Breaker
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