In life and industrial production, we often need waterproof connections for electrical wires and cables to increase the safety of electrical connections and prevent safety accidents caused by water vapor and leakage caused by watery working environments.
There are various waterproof connectors to help us waterproof the electrical connection for single wires , single and multi-way cables , seperatable male-female cable connections .
Single Wire Waterproof Electrical Connection
To waterproof single wire electrical connection , we can use crimp shrink butt wire conector as following :
As above picture we can see, there are two type heat shrink butt wire connector , how do the two type connector waterproof the single wire electrical connection ?
Electrical conductor connection
For the crimp connection heat shrink waterproof butt connector , we will need a crimp tool to connect the conductor of the two single wires , the crimption will force the metal tube(aluminium or copper) , and the conductors could be joint together .
For the heat connection shrink waterproof butt connector , there is tin inside the connector , after the conductor are joint together , use a heat gun will melt the tin , and after the tin cool down , the conductors will be soldered together .
Waterproof The Single Wire Electrical Connection
There is glue inside both heat shrink butt connector , while the heat gun heats the connector , the glue will melt , and the connector shrinks , after the connector cool down , the glue with seal the electrical connector and make it waterproof .
Notes Of Using Waterproof Heat Shrink Butt Connector To Waterproof Electrical Connection
- There are different size of waterproof heat shrink butt connector for 0.3²-6mm²(22-10AWG) wires , please choose the right connector , or the connection or sealing may not be good . Normally manufactures will use different color connector for different conductor wire size .
- Make sure the electrical connection are steady , and the glue inside the connector has sealed the connection very good .
2-5 Core Electrical Cable Waterproof Connection
This type waterproof electrical connector could waterproof cables of 2 core , 3 core , 4 core and 5 core , cable OD from 4-12mm OD .
2-5 Core Cable Waterproof Electrical Connection
As we can see from about picture , the conductors of the two cables will be connected by screws to the central contact , the contact is made of nickel or gold plated brass .
The connector has different types for 2 core , 3 core , 4 core and 5 core cable as following :
Waterproof Cable Electrical Connection Sealing
The waterproof electrical cable connector has sealing O-ring and rubber ring to waterproof the electrical connection , the IP rating could be reach IP67 .
3 Way And 4 Way Cable Splitter To Waterproof Cable Electrical Connection
The 3 way and 4 way cable splitter connector has same screw termination and rubber ring to waterproof the electrical connection as the straight waterproof 2-5 core cable connector .
2-24 Core Waterproof Electrical Connection With M Connector Male And Female
If you have multi-pins cable need to have waterproof electrical connection , and need the cables can be connected and seperated by male-female waterproof connector , the M sery connector is a good choice , above picture shows some M sery connectors .
For the multi-cores cable waterproof electrical connec
tion , we’d better choose field wireable connectors , the cables could be installed the connector at field , the connectors have solder , crimp , and screw termination , for industrial applications , all the three terminations are OK , for life waterproof electrical connection , screw termination is much easier and convinent .
How To Choose The M Connector ?
Different M connector suppot different cable OD , conductor size , pin quantity , rated voltage and rated current , it’s important to choose the right connector first :
M8 field wireable connector : 3-4 core , screw termination , cable OD 3-5mm
M12 field wireable connector : 2-8 core for screw termination , cable OD 4-12mm , 2-17 core , solder termination , cable OD 4-12mm
M16 field wireable connector : 2-24 core , solder termination , 4-8mm cable OD
M23 field wireable connector : 6 core , 7 core , 9 core , 12 core , 17 core , crimp termination , 3-15mm cable OD
How Does M Connector Make the Electrical Connection ?
The conductors of the cable can be connected to the contact of the connector by screw , crimp or solder termination , each connector only has one termination way , choose the right connector and termination way is very important .
How Do M Connector Waterproof The Electrical Connection ?
As we can see from above picture , there are 3 rubber rings in the M12 field wireable connector to seal the male-female connection , seal the cable and connector connection .
Waterproof Box To Waterproof Multi-way Cable Electrical Connection
Above picture shows different sizes waterproof electrical box , it has at least 2 cables glands for 2 cables , and it can be 12 ways , the cable glands and the cover will make the connection IP67 waterproof .
The conductor of the cables can be connected by screws or snap in terminals .
This article shows different solutions for waterproof eletrical connections , if you need help , welcome to contact us .