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:Connectors, WAGO terminals, connectors, three concepts
As we all know, the terminal is the screen device and the screen device connected to the line, play a signal (current and voltage) transmission role.
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:What is the difference between the male and female terminals of the connector?
The two connectors are provided with the difference between the male seat and the female base, and the side of the plug (the protruding joint) is male and the side of the socket (recessed joint) is the female.
Q:Cable connector terminals and other components connected
As the surface of the insulator or the presence of metal residues, surface dust, flux and other pollution damp, organic material precipitates and harmful gas adsorption film and surface water film fusion to form ionic conductive channels, moisture absorption, mildew
Q:Distinguish between the "connector", "terminal", "connector" practical application
the terminal block is a connector, generally belong to the rectangular connector. The use of the terminal block is also relatively simple
Q:Connection method of cable connector terminals and other components
ue to positioning and locking with the size of the tolerance, poor processing quality consistency, the total separation force Large and other reasons caused by poor exchange
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:How are the connectors of the cable connector connected to other components?
On the contact. So the contact must have excellent structure, stable and reliable contact retention and good electrical conductivity.
Q:What is the front connector for Siemens?
With IO modules are generally used to the front connector, but the CPU comes with IO, is to give you with a good, CP module is not needed
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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