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: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:Is the cable connector terminal connected to other components?
So the insulation must have excellent electrical properties, mechanical properties and process performance.
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: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: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
Q:Cable connector terminals and other components connected
insulating material aging and other reasons, Will cause short circuit, leakage, breakdown, insulation resistance is low and other poor insulation phenomenon.
Q:The connection of the terminals of the cable connector to other components
Fixed bad, light exposure to reliable contact caused by instantaneous power, serious product disintegration. Disintegration refers to the terminal in the state of the joint, due to material, design,
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:Front connector Removable terminal block Terminal arm is not the same thing
The front connector is that we have to connect DI, DO, AI, AO those 20-pin plug, connected to the line after the insertion is to facilitate wiring and debugging designed to
Q:How are the connectors of the cable connector connected to other components?
As the contact structure design is unreasonable, the material selection error, mold instability, processing size tolerance, surface roughness, heat treatment plating and other surface treatment process is unreasonable, improper assembly,

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