Solar MC4 branch connector is a connector specially used in solar panel systems, mainly used to connect multiple solar panel branches together or to inverters or loads. The MC4 branch connector is mainly composed of two parts: one is a female connector and the other is a male connector. They can be connected with a simple plug and twist motion. Specifically, the MC4 branch connector is constructed as follows: Jacks and Pins: The female connector has a jack that accepts the pins of the male connector. Locking Ring: There is a rotatable locking ring on the connector to hold the female and male connectors together. Wire connection part: The other side of the connector has a wire connection part for connecting solar panels, inverters or loads. This part usually includes an insulating sleeve and a clip to hold and protect the wires. Indicators: There are usually obvious indicators on the connector, such as "+" and "-", to indicate the correct polarity connection.High-efficiency conduction: MC4 branch connectors use copper conductors, which have good electrical conductivity and can minimize energy loss and overheating. High durability: MC4 branch connectors are made of high-quality materials, have good weather resistance and chemical corrosion resistance, and can work stably for a long time in various harsh environments. Safe and reliable: The MC4 branch connector has anti-reverse connection and anti-misconnection functions, which can ensure the safety of the connection and avoid the risks of current backflow and wrong connection. Simple and easy to use: The MC4 branch connector adopts a plug-in design, which is easy and quick to install and does not require special tools. There are obvious indication marks on the connector, which makes the operation easier and clearer. Wide compatibility: MC4 branch connector has wide compatibility and can be used with most solar panels and inverters.Q: Are you manufacturer or trade company? A. We are manufacturer and specialized in terminal block for 20 years. Q: Can I use it under the water? A: Our connector is reached IP68, of course you can use it underwater. Q: Can you provide samples ? Are the samples free ? A: Yes,we can provide free samples if quantity not too much but delivery fee need pay collect. Q: Which kind of wire connector can I use? A: Please contact us and provide your cable diameter, wire cross-sections to help recommend the suitable models. Q : What about your delivery time? A: We have a lot of products in stock.We can send the stock products in 3 work days. If without stock,or stock is not enough, we will check the delivery time with you. Q : Can you make customized products and customized packing? A: Yes.We made a lot of customized products for our customer before. And we made many moulds for our customers already. About customized packing,we can put your Logo or other info on the packing.It is no problem. Q: What kind of payment do you accept ? Can I pay RMB ? A: We accept T/T(30% as deposit, and 70% balance after you receive copy of B/L) L/C. And you can pay money In RMB. No problem. Q: Do youu have a guarantee of your product quality? A: We have a guarantee of one year. Q : How to ship my order ? Is it safe? A: For small package, we will send it by Express, such as DHL,FedEx,,UPS,TNT,EMS.That’s a Door to Door service. For big packages, we will send them by Air or By sea.We will use good packing and ensure the safety.We will be responsible to any product damage caused on delivery.