Whenever we follow discussion about a connector then first is their appearance. To this, we come to know that they are minor but useful parts of a solar system. Therefore, they are important assets when it comes to solar.
A photovoltaics-based system is a vast system. There is the involvement of many pieces of equipment there. But, the major thing is connection. Therefore, there must be a thing that can help.
For instance, solar systems include many pieces of equipment that can help with the establishment of a stable connection. So, in addition to many of the accessories, the connectors should never be neglected!
As we are dealing with the continuous flow of electricity, therefore connectors are greatly needed!
Therefore, to have a reliable association we come across various products. Similarly, there is necessary requirement to connect many of the equipments at once. It, therefore, includes a connection between inverters, module-level devices as well as power optimizers. However, without these, we cannot have a better working system for solar.
There are many connectors that are used in a PV System. But, they vary on the basis of use and quality. Similarly, to determine the relevant type it is necessary to keep an idea of the voltage requirements.
What are MC3 Connectors?
When we discuss this thing then we should know its abbreviation. So, the word MC4 itself contains two words with different meanings.
Here, MC is multi-connect however 3 represents the 3mm cylindrical plug. This type of connector works as a wonder for the solar system.
Connectors like MC3 are one of the oldest types. Here the difference lies in the plug that is 3mm. It comes up with an upgraded wire in addition to other credentials.
Important parts
- Male connector
- Female connector
This wiring system is double insulated and protected by UV SHIELD. So, in other words, MC3 is a favorable choice for solar owners.
They have the feature of weather resistance and a locking system. Being the remote ones, these are therefore present in the oldest PV Systems. However, talking about recent eras, MC3s are replaced by MC4s. Therefore, for now, MC4 types are considered the most beneficial and productive.
What is an MC4 Solar Connector?
Here, the word MC is similar to the previous however 4 represents the 4mm cylindrical plug. This type of equipment works as a wonder for the solar system with better features.
There is a useful role to connect solar panels with DC Cables. Here, DC Power is used in addition to AC. So, it follows a representation like:
MC Type = Solar Panels = DC Cable = DC Power
Now coming up to the methodology, we know that such tools assist in connecting and disconnecting. Both of these are the basic requirement of a particular Solar panel.
All modern PV systems, therefore, make use of the MC4 connector.
Significant parts
- Metal crimp
- Water seal of rubber
- Seal retainer
- End cup of screw on
Advantages of MC4 Connectors
With the help of solar panel connectors, we get a long list of advantages. Yet, the important ones are below.
- Credible products
The role of solar connectors is wide and needs to be followed by qualitative products. Similarly, to connect the two pieces of equipment, MC4 acts as a credible resource. Therefore, it acts as a valuable type of connection.
- Extended life
One of the things that act problematic for any kind of photovoltaic system is a minimum life. However, this thing has been specially considered at these connectors. Therefore, they provide a longer duration for the Solar system.
- Minimum maintenance
The interesting feature that makes this connector a life savior depends upon lesser maintenance. So, it is, therefore, a must-have to save your costs of maintenance.
- Ensuring savings
With the valuable feature of the economic price range, these connectors ensure maximum savings. Thus, these are reliable accessories if you are thinking of saving your money to the fullest.
- Prevention from heating
Some of the pieces of equipment have an issue with overheating. Due to this, the entire system of PV shows issues. In other words, MC4 is without such errors.
What is a T4 Connector?
When we are looking for some high-quality equipment then T4 is the most favorable choice. It is therefore referred to as a “44-PC-1”. Its design however acts as an improved version of MC4.
There the advancements work in addition to properties like lower contact resistance, higher efficiency, and waterproof rating. It is therefore a famous choice of equipment for a solar system.
Useful components
- Male component
- Female component
Advantages of T4 Connectors
- Waterproof
T4 Connectors have a specific feature of an IP68 waterproof rating. However, it shows better performance even in strong weather conditions.
- Temperature resistivity
Adverse temperatures can affect the working of a PV system. Thus, this thing is therefore under control by the T4. However, it provides a strong resistance in high or even the lowest temperatures.
- Reliable
High-quality materials are used to craft such equipments. Above all, T4 types are one of the most reliable and long-lasting types.
Major points of comparison between MC3, MC4, and T4
|
Properties |
MC3 |
MC4 |
T4 |
|
Cross-Section |
Upto 2.5 – 10 |
2.5 – -10 |
2.5 – 6 |
|
Rated Current |
20 – 43 A |
39 -104 A |
15 – 45 A |
|
Possible Voltage |
1000 V |
1000 V |
1500 V |
|
IP Index |
IP65 |
IP68 |
IP68 |
|
Material of Contact |
Tinplated Copper |
Just like MC3 |
Similar like two |
|
Maximum Temperature |
221 degrees F |
221 degrees F |
248 degrees F |
|
Mechanism of Safety |
None |
Plug lock |
Plug lock |
Cross Section = Shows the diameter range of the wiring area
Rated Current = Maximum current to handle
Possible Voltage = To prevent electrical issues by maximum voltage rating
IP Index = States the higher level of protection
Material of Contact = Exhibits the withstanding conditions like sunlight, temperature, and Heat
What is the difference between MC3 and MC4?
-
There are many points on which both of these systems are different from each other. Therefore, the major ones are dependent upon the following:
- MC3 Connectors lack the locking mechanism. It is therefore present for MC4. Due to this property, the MC3 type is less secure in addition to MC4.
- The former connector lacks advancements in heat, temperature resistivity, and weather conditions. The latter is however efficient for all.
- Connectors like MC3 have a complex system of installation. But, in addition to the MC4 type it works on an easy system of configuration. Therefore, in addition, the latest PV System uses MC4 in spite of MC3.
How to install Connectors in an accurate manner?
-
This method is pretty simple as it requires the basic solar panel connectors and your time. The valuable pieces of equipment are therefore male connectors, female connectors, wire strippers, and crimps. Therefore, a connector cannot perform in a better way if all of these things are not available.
Most importantly, it needs your time. Now, let us have a look over the mandatory steps.
- Lining up parts
The first step is to arrange the necessary parts like connectors, crimping tools, and disconnecting tools by your side
- The strategy of cutting
The wiring system includes some connectors and tools in addition to cables. But, they need to be cut down. There, the method of cutting plays a valuable role
- Process of Crimping
A solar system is incomplete without connections and wiring. However, the crimping tool assists in attaching the wires and connectors to a PV System
- Tightening and Fitting
Both of these work in a reliable manner to properly place the connectors. Similarly, It needs to be done in a better way as it can create electric shocks
- Testing
The final step to test the connectors is by using an ohmmeter or twist test. Both of these display accurate results if the connectors display movement or not.
Conclusion
Through this brief article, we get to know important information regarding the types, comparisons, and features. As connectors are important aspects of the Solar system, therefore we need some accurate pieces of information. So, if you are in search of credible details then this article is there for you.