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Specializes in the production of terminal blocks and industrial electrical connection products.

8.5mm Barrier Terminal Blocks
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8.5mm Barrier Terminal Blocks

8.5mm Barrier Terminal Blocks are compliant with UL1059 standards, is designed with a simple and rigid structure that is suitable for higher current and voltage applications. A wide range of pitch sizes are available, as well as terminal pins and screw designs for different applications. 8.5mm Barrier Terminal Blocks are commonly used in instrumentation components, power supply components, industrial equipment, and a variety of electrical applications needing high-current input and output connections.

  • EX8500

8.5mm Barrier Terminal Blocks is a screw-type electrical connector that allows more than one circuit to connect to another circuit. Wires are clamped down to a metal part by tightening of a screw. Multiple screw terminals are arranged such that the metal strips are separated by a barrier or insulating block. We provide everything from prototype design to aluminum casting for your custom electrical components. 


How to decide the Barrier Terminal Blocks 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 China famous barrier terminal block manufacturers, offering high quality and low price barrier strip terminal block, barrier terminal block connector, and barrier strip connector.


Model

EX8500

Material

Pitch

8.5 mm

Screws

M3.0Steel ,Ni plated

Pin header

Brass, Tin   Plated

Housing

PA66 UL94V-0

Electrical

Rated   voltage

300V

Rated   current

10A

Withstanding   voltage

AC2000V/1   Min

Wire range

22-16AWG

Contact   resistance

20m

Insulation   resistance

500m/DC500V

Mechanical

Temp range

-40~+105

Torque

0.5Nm(4.43Lbin)


barrier-terminal-block-EX8500

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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 Tel: +86-0574-87290036
 E-mail: cherry@sun-electrics.com
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