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Terminal Block

Tongxiang Shineknot Lighting Co,.Ltd: Your Professional Terminal Block Manufacturer!

 

Tongxiang Shineknot Lighting Co,.Ltd was founded in 2010. We have specialized in led lighting field for more than 14 years. The company's main products include light bulb, LED bulb light, LED spotlight bulb, LED fluorescent tube, traditional light, terminal block, etc.

 
 
Why choose us?

Professional one-stop service

From product quotation, customization, production, follow-up manufacturing, receiving, inspection, storage, booking, customs clearance, filling the container, we check the whole process to ensure that your goods are delivered on time. Whether it is a small quantity of bulk cargo or sending a full container of goods, we are able to provide both quality service.

Strong supply chain

We have up to 500 supply chains and 5,000 products. We can provide both standardized products and customized products with flexible MoQ and timely delivery.

Sales market

Our main export market: the south east Asia, middle east, south pacific and Africa.

Comprehensive business solutions

Tell us what you need, and we'll analyse your market and provide a comprehensive business solution. We will collaborate if you have a project tender, to help you win the contract.

 

 

Benefits of Terminal Block

Flexibility and ease of modification

Flexibility is among the primary benefits of terminal blocks. They allow easy addition or removal of wires, meaning they are best for installations where constant alterations and adjustments are required. Neat and organized wiring will allow for easy identification. This will make any kind of changes easy and less cumbersome during troubleshooting to ensure that adjustments are done fast enough without much hassle.

 

Reduce space

By investing in multi-level terminal blocks you can reduce panel space by up to 50%. That’s because the multi-level blocks contain multiple levels of circuits with that single block.

 

Increase safety

Terminal blocks increase safety by grounding, isolating, and protecting the other components in the electrical circuit. Terminal blocks are available with finger-safe connections to prevent electrical shock.

 

Easy installation

They can then be installed using a screwdriver. They also ensure fast connection/disconnection which helps with both maintenance and troubleshooting.

Insulated Ring Terminal

 

Product Specifications

 

Model number

Inserted wire cross-section

External dimensions

(mm)

Area (nm²)

Screw hole

Tube outer
diameter

Inner
Diameter

Total
lengt

Tube
depth

Plate
width

Plate
Thickness

DT-10

10

8.5

8

5.5

58

28

14.5

1.7

DT-16

16

8.5

9

6.5

60

30

14.5

2

DT-25

25

8.5

10

7.5

65

31

16

2.3

DT-35

35

10.5

11

8.7

69

32

18

2.6

DT-50

50

10.5

13

10

75

36

20

3

DT-70

70

12.5

15

12

83

40

23

3

DT-95

95

12.5

17

13.6

91

41.5

26

3.5

DT-120

120

14.5

19

15.5

96

45

28

3.5

DT-150

150

14.5

21

16.5

100

46

30

3.8

DT-185

185

17

23

18.7

110

49

32

4.3

DT-240

240

17

26

21

116

53

35

4.6

DT-300

300

21

29

24

138

61

42

5.5

 

Key Terminal Block Electrical Considerations
 

Current rating

The current rating is often the most important parameter to consider in terminal block designs. The current rating is based on the conductivity of the terminals, cross-sectional area, and the corresponding heat rise. Operating at too high of a current can cause overheating and damage of the terminal block, leading to major safety concerns. It is best practice to use a terminal block that is rated for at least 150% of the max current that is expected in the system.

 

Voltage rating

The voltage rating is in part determined by the dielectric strength and pitch of the terminal block housing. The maximum system voltage of the application must be less than the voltage rating. Any voltage surges in the system should also be evaluated when selecting the terminal block.

 

Pole count

The number of individual circuits within the terminal block is also known as the pole count. This can be as few as a single pole, and as high as 24 poles and beyond, based on how many individual circuits are needed in the specific application.

 

Pitch

A terminal block’s pitch is defined as the center distance from one pole to the next. The pitch of the connector is often determined by the overall rating of the terminal block where factors like voltage/current, creepage, and clearance are considered. Common industry pitches would be, but are not limited to, 2.54 mm, 3.81 mm, 5.0 mm, and 7.62 mm.

 

Wire size/type

The minimum and maximum wire size that the terminal block can accept would be a function of the voltage/current rating. In addition to making sure the wires used will physically fit into the terminal block, the type of wire should also be considered. Stranded or multi-core wire is typically used for screw terminals, and single-core is typically used for push-in style terminal blocks. In North America wire size is specified in units of American wire gauge (AWG). Wire size can also be specified as mm2.

 

 

Packaging, Shipping and Payment

We provide LCL and FCL one-stop service. Multi shipping methods are available. DDU or DDP can be choosing according to your demand.

We accept many payment methods such as L/C, D/P, T/T, Paypal, Western Union and so on.

 

productcate-781-205

productcate-920-650
productcate-920-650
 

Certifications

 

productcate-1-1

 

 

FAQ

Q: Why use terminal blocks?

A: Terminal blocks enhance safety by providing secure, insulated wire connections. This reduces the risk of shocks, fires, and short circuits. They also streamline wiring, save space, especially with multi-level designs. They also facilitate maintenance and troubleshooting, and promote organized wiring systems.

Q: Are terminal blocks safe?

A: Yes, when used correctly, terminal blocks are designed for safety. They feature insulation and are built to handle specific electrical loads and environments. Proper installation and adherence to safety standards are necessary for optimal security.

Q: What are the different types of terminal blocks?

A: There are many types, categorized by their application or structure. Common categories include feed-through (connecting two wires), ground blocks (for grounding wires), fuse blocks (with integrated fuses), disconnect blocks (allowing circuit disconnection), power distribution blocks, and I/O or sensor blocks for connecting devices to controllers.

Q: How do screw-type, spring-clamp, and push-in terminal blocks differ?

A: Screw-type blocks use a screw to clamp the wire against a conductor. They are ideal for a wide range of wire sizes and offer robust connections. Spring-clamp blocks utilize a spring mechanism for quick, tool-free installation and removal, suitable for environments with vibrations. Push-in blocks are similar to spring-clamp but allow direct wire insertion without needing to open a clamp manually. This Digikey article provides more detail.

Q: What ratings and specifications should I consider when selecting a terminal block?

A: Key considerations include current and voltage ratings. Make sure they meet or exceed system requirements, with a safety margin. Also consider wire size and type, and compatibility with the block's capacity. Think about environmental conditions like temperature, humidity, and vibration, as well as physical factors like the number of poles and wire-entry orientation (horizontal, vertical, 45°).

Q: How do terminal blocks contribute to industrial automation?

A: Terminal blocks are integral to industrial automation by providing organized, reliable connections for sensors, actuators, and controllers. They simplify the complex wiring in control panels and machinery. They also facilitate signal distribution and enhance safety through features like grounding and isolation. They also enable efficient maintenance and troubleshooting.

We're professional terminal block manufacturers in China, specialized in providing high quality custom service. If you're going to wholesale bulk high-grade terminal block, welcome to get pricelist and quotation from our factory.

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