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Multi Contact 4 Y Branch Connector , MC4 Y Connector For Solar Panel

Multi Contact 4 Y Branch Connector , MC4 Y Connector For Solar Panel

Product Details:

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

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
Test Voltage:6KV(50Hz,1Min)Degree Of Protection:IP67
Contact Resistance:10×38 Mm, 1-20AContact Material:Less Than 0.5 M Ohm
Pin Dimension:4.0 MMRated Current:20A-40A

mc4 y connector connecting solar panels in parallel or series



Product Description


Dongguan Sunyo-Photovoltaic Co., Ltd.

mc4 y connector is Compatible with multi contact 4 connector,suitable to solar cable2.5 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

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


Specification Of mc4 y connector



mc4 y connector



Multi Contact 4 Y Branch Connector , MC4 Y Connector For Solar Panel

Product NO.SY-BY21-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 y connector(PLEASE CONTACT US)




Dongguan Sunyo-Photovoltaic Co., Ltd.

obtains TUV,CE,RoHS and other certifications. TUV certification prevents personal injury and property damage may caused during use connector,including electric shock, overheating or fire hazard, mechanical aspects of hazardous, radioactive hazards and chemical hazards.


Our service


We provide customers with effective solutions timely based on market demands. Achieve zero defect product quality by overall participation and all-out effort in cooperation with each other. Create the WIN-WIN situation with suppliers, customers and employees by enhancing productivity and constant process improvement.


Why Choose Us


1. Specializing in R&D, manufacturing and marketing MC4 solar connectors

2. With advanced technology and sales through-train service

3. Have been authorized by TUV Rhineland, UL, CE successfully

4. Survive for excellence, development for innovation

5. Create the WIN-WIN situation with suppliers,customers and employees

Contact Details
Dongguan Sunyo-Photovpltaic Co., Ltd.

Contact Person: Mandy

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