SMC3Y/SMC4Y Solar Connector PV Branch Plug And Socket

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SMC3Y/SMC4Y Solar Connector PV Branch Plug And Socket



SMC4 Connector Systems used to connect Renogy Solar Panels consist of male and female SMC4 connectors and branch connectors. This type of connector system is easy to install and uses “snap-in” safety locking tabs to lock two mating connectors, thereby avoiding unintentional disconnection. Also, the mating contacts are sealed against ingress of dust and water. 


Operating frequency: high frequency
Feature: waterproof
Insulation material: the PPE



• Contact diameter Ø 4 mm
• Maximum rated current - 30 A
• Maximum system voltage - 1000 V
• Degree of ingress protection when connected and properly locked - IP67
• Temperature range 40°C to +90°C
• TÜV Rheinland – type approve


Type And meaning


Rated current


Rated voltage

1000V DC

Test voltage

6000v(50Hz,I min)

Overvoltage Category/pollution degree


Contact resistance of plug connector

Im Ω

Contact material


Insulation material


Degree of protection


Flame class


Safety class

Insertion force


withdrawal force


Temperature range





What is a circuit breaker? 

Generally speaking, a circuit breaker is a type of switch that protects us from dangerous electrical situations by automatically turning off the flow of electricity when an overload or other fault occurs.


What's The Miniature Circuit Breaker Working Principle? 

There are two arrangement of operation of miniature circuit breaker. One due to thermal effect of over current and other due to electromagnetic effect of over current. The thermal operation of miniature circuit breaker is achieved with a bimetallic strip whenever continuous over current flows through MCB, the bimetallic strip is heated and deflects by bending. This deflection of bimetallic strip releases mechanical latch. As this mechanical latch is attached with operating mechanism, it causes to open the miniature circuit breaker contacts. But during short circuit condition, sudden rising of electric current, causes electromechanical displacement of plunger associated with tripping coil or solenoid of MCB. The plunger strikes the trip lever causing immediate release of latch mechanism consequently open the circuit breaker contacts. This was a simple explanation of miniature circuit breaker





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Q:From the scope of the distinction between the "connector", "terminal", "connector"
The terminal is part of the connector. Connector is a general term, in fact, we generally see the connector, usually including shell (shell) and terminal (terminal) two parts
Q:Distinguish between the "connector", "terminal", "connector" practical application
  Electrical connector referred to as connector, also known as the connector, is a sub-electronic components of the field, mainly for the connection between the circuit and the circuit. In industrial production
Q:How do I distinguish the connector's male and female terminals?
With the technological progress, with the connector can be updated components, with new, better components instead of the old
Q:What is the difference between the male and female terminals of the connector?
Connector, ie CONNECTOR. Domestic also known as connectors, plugs and sockets. Generally refers to the electrical connector
Q:What is the front connector for Siemens?
Siemens 300 front connector is the Siemens module attachment, the role is the card into the module, easy to wiring
Q:The connection of the terminals of the cable connector to other components
As the design is unreliable, material selection error, improper selection of molding process, heat treatment, mold, assembly, welding and other poor quality of the process, the assembly is not in place and so will cause a fixed bad. In addition
Q:Cable connector terminals and other components connected
This is the insulation material, injection mold precision and molding process put forward more stringent requirements
Q:Connection method of cable connector terminals and other components
Hao Long experts said that the correct choice and use of the terminal can be used for the majority of terminals to provide customers with more convenience, poor contact terminals, poor insulation, poor fixation for the product will form a fatal fault
Q:Is the cable connector terminal connected to other components?
torage environment and improper operation, will be in contact with the Contact parts and mating parts caused by poor contact.
Q:Understanding "connectors" and "terminals" and "connectors"
The use of terminals more and more, and more and more types. At present, the most widely used in addition to PCB board terminals

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