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Yueqing Langir Electric Co., Ltd.

DC Circuit Breaker, Circuit Breaker, Min DC Circuit Breaker manufacturer / supplier in China, offering Jb-63 2p DC Solar Circuit Breaker (TUV Certification) From 1A to 63A, 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 Jb-63 2p DC Solar Circuit Breaker (TUV Certification) From 1A to 63A

Jb-63 2p DC Solar Circuit Breaker (TUV Certification) From 1A to 63A

FOB Price: Get Latest Price
Min. Order: 10 Pieces
Port: Shanghai, China
Production Capacity: 50000 Set/Month
Payment Terms: L/C, T/T, Paypal

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Basic Info
  • Model NO.: JB-63
  • Operation: Manual Type
  • Arc-extinguishing Medium: Air
  • Structure: MCB
  • Type: Circuit Breaker
  • DC Mini Circuit Breaker Rated Voltage: 250 V, 500 V,750 V, 1000 V
  • DC Mini Circuit Breaker Brand: Langir
  • Trademark: Langir
  • Origin: Wenzhou
  • Breaking Capacity: Low Voltage Circuit Breakers
  • Speed: Normal Type Circuit Breaker
  • Installation: Fixed
  • Poles Number: 2
  • Certification: VDE, CE, TUV
  • Handle Color: Grey
  • Is_Customed: Yes
  • 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)
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

Jb-63 2p DC Solar Circuit Breaker (TUV Certification) From 1A to 63A

Jb-63 2p DC Solar Circuit Breaker (TUV Certification) From 1A to 63A

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