Why choose a waterproof connector and what are its advantages?

2024-01-26

A waterproof connector is a connector that can be used in an environment with water, and can ensure that the internal mechanical and electrical properties of the connector can be used normally under certain water pressure.

Protection Level System

IP (INTERNATIONAL PROTECTION) protection level system is drafted by IEC (INTERNATIONAL ELECTRO-TECHNICAL COMMISSION). The electrical appliances are classified according to their dust-proof and moisture-proof characteristics. The objects referred to here contain tools, and the palms, fingers, etc. of the person should not touch the live parts of the appliance to avoid electric shock. The IP protection level is composed of two numbers. The first number indicates the level of the appliance from dust and the intrusion of foreign objects. The second number indicates the degree of airtightness of the appliance against moisture and water intrusion. The larger the number, the higher the level of protection. High.

Advantages of Waterproof Connector

1. Excellent sealing performance. The highest waterproof level of the waterproof connector can reach the IP68 standard.
2. The waterproof connector is an internationally certified product, which has obtained CE certification, low voltage directive, WEEE directive and OOHS directive. These proofs guarantee the quality of the waterproof connector and its irreplaceable market position.
3. Waterproof connectors have a variety of products. Among them, the Slocable series of waterproof connectors have the following models: M682-A, M682-B, M683-B, M685-T and M685-Y, etc.
4. Waterproof connector is a product with high quality and high design for working environment with water. The equipment not only guarantees to provide customers with reasonable connection schemes, but also brings a sense of safety and reliability.
5. The waterproof connector has the characteristics of a fast and convenient installation.

Application

Industrial environment:

Such as (solar) LED lighting, urban outdoor lighting projects, lighthouses, cruise ships, aviation, industrial equipment, cables, sprinklers, etc., all need to use waterproof connectors.

Military field:

Due to strict application requirements, a large number of waterproof connectors are used, such as connectors for submarines and connectors for submarine-launched missiles.

Parameters of Waterproof Connector

Model	Pin Version	Cross Section	Cable Diameter	Material	Certificates
M682-A	2pin	0.5~1mm²	4-8mm	PA66 Nylon	CE RoHS
M682-B	2-3pin	0.5~1mm²	4-8mm	PA66 Nylon	CE RoHS
M684-A	2-4pin	0.5~2.5mm²	5-9mm/9-12mm	PA66 Nylon	TUV CE RoHS
M684-B	2-4pin	0.5~2.5mm²	5-9mm/9-12mm	PA66 Nylon	TUV CE RoHS
M684 Clip Type	2-5pin	0.5~2.5mm²	5-9mm/9-12mm	PA66 Nylon	TUV CE RoHS
M685	2-5pin	0.5~4mm²	4-8mm/8-12mm/10-14mm	PC+PA66 Nylon	TUV CE RoHS
M685-T	2-5pin	0.5~4mm²	4-8mm/8-12mm/10-14mm	PC+PA66 Nylon	TUV CE RoHS
M685-Y	2-5pin	0.5~4mm²	4-8mm/8-12mm/10-14mm	PC+PA66 Nylon	TUV CE RoHS

The structure of a waterproof connector is generally divided into: metal contact conductor and shell.

The difference between metal and plastic (nylon TA66) shells:

1. Electrical performance:

Rated voltage, rated current, contact resistance, insulation resistance, etc. are in accordance with the specified standard values. This point is the same as the metal and plastic housing.

2. Mechanical life:

The mechanical life of a waterproof connector refers to the life of the number of times of plugging and unplugging, and the industry-standard usually specifies 500 to 1000 times. When the specified mechanical life is reached, the contact resistance, insulation resistance, and withstand voltage of the waterproof connector should not exceed the specified standard values. There is not much difference between the metal shell and the plastic shell.

3. Terminal connection mode:

The terminal connection mode refers to the connection mode between the hardware contacts of the male and female connectors of the waterproof connector and the wire and cable. The metal is the same as the plastic case. Termination methods can be divided into five types: welding, crimping, winding, piercing, and screw.

4. Environmental parameters:

Environmental parameters mainly include ambient temperature, humidity, sudden temperature changes, atmospheric pressure, and corrosive environment. The environment in which the waterproof connector is used, stored, and transported has a significant impact on its performance. Therefore, the corresponding metal shell must be selected according to the actual environmental conditions, which is better than plastic.

Comprehensive analysis, except for the need for the connector to have a shielding function, there is little difference in performance between metal and nylon TA66 plastic shells. Compared with the metal shell, the cost of plastic is lower, and the structure is more reasonable.

Precautions for Waterproof Connectors

1. The waterproof connector should avoid strong hitting or falling to avoid damaging the internal structure and affecting the sealing performance.
2. When the waterproof connector is in a separated state, it should be equipped with a protective cover or other methods to prevent dust. If it is used for a long time, it should be insured between the plug and the socket.
3. When cleaning the waterproof connector, you can use a silk cloth dipped in anhydrous ethyl alcohol, and it can be used again after drying, and some chemical agents cannot be used, such as acetone and other chemical agents.
4. The waterproof connector is fixed and positioned by threaded connection to be clamped by the wire harness and other occasions also need to use anti-loosening equipment.
5. When the connected plug and socket are waterproof connectors without positioning shells, in order to ensure that the fixed plug and socket can be aligned, the plug and socket should be fixed in a difficult-to-fit state.
6. When using a waterproof connector, avoid loosening of the tail accessories and force damage to the cable core to prevent performance from being affected.