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Dust Proof Solar Cable Connectors / MC4 Parallel Connector TUV Approved

Dust Proof Solar Cable Connectors / MC4 Parallel Connector TUV Approved

Product Details:

Place of Origin: China
Brand Name: Sunyo
Certification: TUV Rhineland, RoHS, CE etc.
Model Number: SY-CM31

Payment & Shipping Terms:

Minimum Order Quantity: Negotiable
Price: Negotiable
Packaging Details: 50pcs / opp
Delivery Time: 7-35 days
Payment Terms: L/C, D/A, D/P, T/T, MoneyGram, Western Union
Supply Ability: 10000pcs / Week
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Detailed Product Description
Degree Of Protection:IP67Contact Resistance:10×38 Mm, 1-20A
Contact Material:Less Than 0.5 M OhmRated Current:20A-40A
Insulation Material:PPOCompatible Solar Cable:2.5/4.0 /6.0 Mm² (14/12/10 AWG)

MC4 parallel connector wiring solar panel together



How to Install MC4 Connectors


Step 1: Strip the solar panel cable to expose approximately 3/8"of the stranded copper cable

Step 2: Crimp terminal well,and put the terminal to the connector directly.

Step 3: Using solar spanner to slide the strain relief/ grommet and nut back onto the MC4 connector. Firmly hand tighten the nut.

Step 4: Well done




1. 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.

2. 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.


Product Description


Dongguan Sunyo-Photovoltaic Co., Ltd. mc4 parallel connector is Compatible with multi contact 4 connector,suitable to solar cable

2.5 mm2,4mm2 and 6mm2 in solar connection project.connecting solar panels in series or parallel.
quickly and reliable connection of the solar cables to the photovoltaic system(solar panels, converters).

  • Compatible with MC4 cable coupler solar connector PV-KBT4/KST4.

  • 15 Years of production experience in solar connectors

  • TUV approved & Quick and easy to install

  • Protection class IP67 Suitable for outdoor harsh environments

  • Stable connection & Reducing maintenance cost

  • Free Sample is available

Specification Of mc4 parallel connector



mc4 parallel connector



Dust Proof Solar Cable Connectors / MC4 Parallel Connector TUV Approved

Product NO.SY-CM31-A/B
Insulation materialPPO
Rated VoltageTUV 1000 DC/ UL 600V DC
Rated Current20A-40A
Test voltage6KV(50Hz,1Min)
Contact materialcopper, tin plated
Contact resistanceless than 0.5 m ohm
Degree of protectionIP67
Pin dimension4.0 MM
Compatible Solar cable2.5/4.0 /6.0 mm² (14/12/10 AWG)


Drawing of mc4 parallel connector


Production Processes of Cable Connector


First of all,we need to die casting pins.Then,inject plastic into it.Next,use machine to assembly positioning shrapnel.Fourth,auto assembly O-ring and connector.After assembly,it’s the processes of testing.Firstly,test its resistance.Secondly,test its pull. Thirdly,test its water proof.What’s more,test its wet insulation.At last,plastic closures and package.

Contact Details
Dongguan Sunyo-Photovpltaic Co., Ltd.

Contact Person: Mandy

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