Wuxi Gangsheng Precision Plastics Co., LTD is specialized in the production of electrical engineering plastics, the application of products cover power electricity, telecommunications, industrial automations and so on. The company is an ISO9001:2000 certificated company, its customers are around the world. Since 2007 it started the research and then the production of Solar Cell Junction Box, wattage rating from 5W to280W and rated current from 5A to 16A. The product series pass the TüV certificate and meet the industrial Safety/Quality requirements, the products are now be adopted by a number of PV Modular manufacturers both from domestic and oversea.

Solar Cell & Junction Box Connection Instruction

一：Illustration Diagram

The above shown is a typical connection diagram of the junction box with solar cell modular. There is no current flowing through the diode when solar cell is generating the power, and the diode is at around 1.7V reverse biased. In case the malfunction of any cell unit and no power is generated, the diode in parallel with will bypass the current generated from other cells.

二、Junction Box Types：

Junction Box Type: Silicon and Amorphous Silicon Junction Box, Wall-Mounted Junction Box, explosion-proof Junction Box

三、Construction of Junction Box：

Housing, Cable, Connectors

a.Construction of Housing：

Plastic box, upper cover, diodes.

b.Cable Types：

Typical cable types: 1.5MM2、2.5MM2、4MM2.

c.Connector Types:

Type MC3 and MC4 are commonly used as shown below.

MC3 MC4

四、Diode Spec：

Schottky diode isrequired for Solar Cell Junction Box application.

40V、45V、50V、60V、80V、100V。Typical current ratings: 10A、12A、15A；Typical max. reverse voltage ratings: 40V、45V、50V、60V、80V、100V

五、Typical Junction Box for Solar Cell Modular

六、Technical Specifications

◆Applicable Power Rating: 5W to 280W

◆Max. Reverse Voltage 1000V

◆Rated Current: 6A to 16A (Other current ratings available upon customer request)

◆Contact Resistance <55mΩ

◆IP Protection: IP65

◆Safety Class: Class Ⅱ

◆Operating Temperature: -40+85℃

◆Housing Material: PPO (Long lifetime, resistant to ultraviolet radiation, applicable for the applications under tough environments.

◆Connection Cable Types：1.5MM2、2.5MM2、4MM2及6MM2

七、Ordering Code：