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:Understanding "connectors" and "terminals" and "connectors"
 In general, the "connector", "terminal", "connector" three belong to a different concept of application form, according to different practical applications are popular call.
Q:Connectors, WAGO terminals, connectors, three concepts
WAGO terminal is a combination of wires, easy to connect the power of the product, included in the above two, but can be used alone; do not know I did not clear.
Q:How do I distinguish the connector's male and female terminals?
If an electronic component fails, the connector can be quickly replaced when the failure of components;
Q:Front connector Removable terminal block Terminal arm is not the same thing
The interface is generally fixed and connected to the adjacent module No, with Siemens S7300 for example
Q:Distinguish between the "connector", "terminal", "connector" practical application
 The connector is divided into many categories, such as rectangular connectors, circular connectors, stepped connectors, etc.,
Q:From the scope of the distinction between the "connector", "terminal", "connector"
The connector is a wire-to-wire connection; the connector is a connection between the wire and the board. In real life people often blur the same thing.
Q:Is the cable connector terminal connected to other components?
Especially with the high density, miniaturized terminal blocks are widely used, the effective wall thickness of the insulator is getting thinner.
Q:Is there a difference between the wire connector and the terminal block?
Only the difference between the categories, the terminal is part of the connector; In fact, the brand is largely the difference between the visibility
Q:How are the connectors of the cable connector connected to other components?
The metal conductor inside the terminal is the core part of the terminal that transfers the voltage, current, or signal from the external wire or cable to the connector that matches it.
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

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