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14.0mm Barrier Terminal Block Connector
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14.0mm Barrier Terminal Block Connector

Using 14.0mm Barrier Terminal Block Connector can connect multiple lights and accessories to the same circuit and eliminate wire splicing. In structure, China Barrier Terminal Blocks comprise PCB type, closed barrier type, and pluggable type, and can connect all kinds of conducting wires whose cross‐sections are 0.5mm2 to 6mm2 with the pitches of 6.35mm~16mm, rated voltage 150V~600V (cULus)and rated current 10A~140A (cULus). China Barrier Terminal Blocks are two types: cover type and no cover type.
  • EX89

14.0mm Barrier Terminal Block Connector is used to make multiple electrical connections in one location. They usually have terminals that allow the wires to be secured by tightening screws. A barrier terminal block contains the wires to prevent electrical shorts. 14.0mm Barrier Terminal Block Connector is frequently used in applications such as industrial controls, instrumentation, power supplies, consumer electronics telecom equipment, and transportation.

How to decide the barrier terminal block for you?

Choosing the right type of connector for your application may seem trivial but, in fact, is more complex than you may realize. The aspects of terminal blocks that need to be considered are typically current requirements, voltage requirements, the wire being used, mechanical strength, and the environment.

1. Current requirement

Current requirements are arguably the most important aspect to consider because pushing too much current through a terminal block can result in overheating and, therefore, the destruction of the terminal block. When looking for a terminal block, be sure that the chosen block can, in fact, handle the current that you expect to use plus 50 percent more. For example, if an expected current of 2 A is to be drawn from a block, then a terminal block with a current rating of 3 A would be sufficient.

2. Voltage requirements

Just like the current draw, the voltage also needs to be taken into account. The voltage causes problems with dielectric breakdown such that a voltage too high for a terminal block could cause current leakage between adjacent terminal blocks. However, high voltage requirements are often rare in design, which is why voltage considerations are typically ignored for voltages under 100 V. However, it is still important that this figure is checked before a terminal block is chosen!

3. Wire being used

Not all wires are equal, and each wire type has its own advantages and disadvantages. For example, when choosing a terminal block for a cable, be sure to know the size of the cable (can it physically fit into the terminal block?) as well as if it’s single-core or multi-core. Multi-core wire does very well in screw terminals, whereas single-core wire does well in push-fit connectors.

4. Environmental/mechanical strength

The environment is a very important aspect to consider when choosing a terminal block. Some terminal blocks may be mechanically strong and able to handle high currents, but if the connection is being used in a naval environment, then the salty air could be detrimental to the metal contacts. The environment could also have wide temperate swings or contain mechanical vibrations, which make screw terminations unreliable.

Sun is top 10 barrier terminal block manufacturers in China, offering high quality and low price barrier strip terminal block, barrier terminal block connector, and barrier strip connector.





14.0 mm


M4.0Steel ,Ni plated

Pin header

Copper alloy,   Ni Plated


PA66 UL94V-0


Rated   voltage


Rated   current


Withstanding   voltage

AC2000V/1   Min

Wire range


Contact   resistance


Insulation   resistance



Temp range





Sun Electric Co., Ltd
Founded in 2011, Sun Electric Co., Ltd specializes in the production of terminal blocks and industrial electrical connection products.

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