How to Connect Solar PV Connectors?

Date:2016-9-1

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LEADER TECH solar panels come with approximately 3ft of Positive (+) and Negative (-) wire connected to the junction box. At the other end of each wire is an solar connector, designed to make wiring solar arrays much simpler and faster. The Positive (+) wire has a Female solar Connector and the Negative (-) wire has a Male solar Connector that snap together forming a connection suitable for outdoor environments.

Specifications

Mating Contacts Copper, Tin plated, <0.5mȍ Resistance
Rated Current 30 A
 Rated Voltage 1000V (TUV) 600V (UL)
Ingress Protection IP67
Temperature Range -40°C to +85°C
Safety Class II, UL94-V0
Suitable Cable 10, 12, 14 AWG

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[2.5, 4.0, 6.0mm2]

 

Components

how to connect mc4 connectors 1.Female Insulated Connector Housing
2.Male Insulated Connector Housing
3.Housing Nut with internal rubber bushing/cable gland (seals wire entry)
4.Female Mating Contact
5.Male Mating Contact
6.Wire Crimp Area
7.Locking Tab
8.Locking Slot – Unlock Area (press to release)

 

Assembly

LEADER TECH’S solar connectors are compatible for use with AWG #10, AWG #12, or AWG #14 wire/cable with an outer insulation diameter between 2.5 and 6.0 mm.
1)Strip 1/4d of the insulation from the cable end to be terminated with the solar connector using a wire stripper. Be careful not to nick or cut the conductor.

2)Insert the bare conductor into the crimping area (Item 6) of the metallic mating contact and crimp using a special purpose crimping tool. If a crimping tool is not available the wire may be soldered into the contact.

3)Insert the metallic mating contact with the crimped wire through the Housing Nut and rubber bushing (Item 3) and into the insulated housing, till the metallic pin fits snug into the housing.

4)Tighten the Housing Nut (Item 3) onto the connector housing. When the nut is tightened, the internal rubber bush is compressed around the outer jacket of the cable and thus, provides water-tight sealing.

 

Installation

  • Push the Two Connector pairs together such that the two locking tabs on the solar Female Connector (Item 7) align with the two corresponding locking slots on the solar Male Connector (Item 8). When the two connectors are coupled, the locking tabs slide into the locking slots and secure.
  • To uncouple the two connectors, press the ends of the locking tabs (Item 7) as they appear in the open locking slot (Item 8) to release the locking mechanism and pull the connectors apart.
  • Make sure that no current is flowing when uncoupling is attempted.

Warning

💡 When the surface of a solar panel is exposed to sunlight, a DC voltage appears at the output terminals turning it into a live voltage source that may produce electrical shock.

💡 To avoid any electrical shock hazard during assembly/installation, make sure that the solar panel is not exposed to sunlight or is covered to block any solar irradiation.

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Key pillars for shining success

As a manufacturing and solutions-driven company, Leadergroup has supported some of the world’s largest and most challenging solar power plants. From consulting and design, construction to maintenance, our global team of PV experts will ensure your system is optimally connected for maximum efficiency, safety and profitability.

We connect solar power for a sustainable world

The success of any solar photovoltaic (PV) plant comes down to reliable, efficient and long-term performance. With Leadergroup Renewable Energy as your partner, you benefit from our high precision solutions and decades of experience harnessing solar energy.

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