7 best screw terminal connector

A screw terminal connector, also known as a terminal block or simply a screw terminal, is a common electrical component used for connecting and securing wires or cables in various electrical and electronic applications. These connectors are widely used in industrial, commercial, and residential settings for the purpose of establishing secure electrical connections.

Key features and aspects of screw terminal connectors include:

  1. Design: A screw terminal connector typically consists of a plastic or insulating block with metal terminals (often made of brass or steel) that have a screw or clamping mechanism. The block provides a means of organizing and securing multiple wires.

  2. Wire Connection: Wires or cables are inserted into the openings of the metal terminals. The screw or clamp is then tightened down to secure the wire in place. This creates a reliable and conductive connection between the wire and the terminal.

  3. Variety: Screw terminal connectors come in various types and configurations. Common types include barrier strips, terminal blocks, and distribution blocks. Some terminal blocks are designed for specific applications, such as grounding, power distribution, or signal connections.

  4. Ease of Use: Screw terminal connectors are known for their user-friendly design. They allow for easy installation and removal of wires without the need for soldering or special tools.

  5. Labeling: Many screw terminal connectors include areas for labeling or marking each terminal, making it easier to identify and manage connections, especially in complex wiring setups.

  6. Diversity of Applications: Screw terminal connectors are employed in a wide range of applications, including in control panels, industrial machinery, HVAC systems, audio equipment, power distribution systems, and more.They are particularly useful in situations where wires may need to be added, removed, or reconfigured.

  7. Secure and Reliable: When properly tightened, screw terminal connectors create a secure and reliable electrical connection. They are less prone to loosening or coming apart due to vibration or movement, making them suitable for rugged or high-stress environments.

  8. Maintenance: These connectors facilitate easier maintenance and troubleshooting, as individual wires can be disconnected or reconnected without affecting other connections.

It's important to note that while screw terminal connectors are convenient and versatile, the quality of the connection depends on the proper tightening of the screws. Over-tightening can damage wires, while under-tightening can result in loose connections and electrical problems.

In summary, screw terminal connectors are fundamental components in electrical and electronic systems, allowing for the organized, secure, and reliable connection of wires and cables. Their simplicity and adaptability make them essential in a wide range of applications within the field of electrical and electronic engineering.

Below you can find our editor's choice of the best screw terminal connector on the market
  

KeeYees 60pcs 5mm Pitch 2 Pin & 3 Pin PCB Mount Screw Terminal Block Connector for Arduino (50 x 2 Pin, 10 x 3 Pin)

KeeYees

Based on 332 reviews Check latest price

Product description

KeeYees: Best choice in various Electronic Modules & Components, DIY Parts and Tools to support your work and design challenges from Home, School to Industrial applications!



Parameter:

Pin number: 2 Pin and 3 Pin

Pitch: 5mm

Rated voltage: 300V

Rated current: 10A. 

For wire size: 14-22AWG

Material : ABS Plastic, Electric Parts

Colour: blue



Package include:

50 x 2 Pin Screw Terminal Block

10 x 3 Pin Screw Terminal Block

  • 2 pin & 3 pin
  • Pitch: 5mm
  • Rated Value: AC 300V, 10A
  • For wire size: 14-22AWG
  • Package include: 50pcs 2 Pin Screw Terminal Block Connector ; 10pcs 3 Pin Screw Terminal Block Connector

User questions & answers

Question: What hole size (diameter) should be used on the pcb
Answer: I measured them at 0.9mm with cheap digital calipers, I'm going to design my board with 1.0mm holes and hope for the best.
Question: Has anyone used these on breadboards? Are the pins long enough to seat well
Answer: Yes, these pins are long enough to be used on breadboards

100Pcs 2P CH2 + 3P CH3 Quick Connector Spring Wire Connector Screw Terminal Barrier Block for LED Strip Light Wire Connecting - 4 Styles

Findfly

Based on 154 reviews Check latest price

Product description

Fully insulated PVC wire connectors save your time and effort, give you a safe and guaranteed environment.



Specification:

Material: PVC plastic; Metallic spring or copper screw

Color: White



Working voltage and current:

CH-2 quick connector:

Voltage: 250V

Current: 10A



CH-3 quick connector:

Voltage: 250V

Current: 10A



H-2 quick screw connector:

Voltage: 220V

Current: 10A



H-3 quick screw connector:

Voltage: 380V

Current: 10A



Three steps to finish wire connecting:

1. Press the spring clip / Loose the screws.

2. Insert wires

3. Release the press clip / fasten the screws



Package include:

30Pcs x 2 Position H-2 screw terminal block

30Pcs x 2 Position CH-2 spring wire connectors

20Pcs x 3 Position H-3 screw terminal block

20Pcs x 3 Position CH-3 spring wire connectors

  • ✔ INSULATING MATERIAL: The shell is made of high quality PVC insulating fireproofing material, safe and non-toxic, corrosion resistance. High pressure resistance, high melting point, high temperature resistance, can work at -40ºC to 150ºC. Long life, can be used continuously for 50 years, the service life is more 10 times than the electrical tape.
  • ✔ GOOD ELECTRIC CONDUCTION: Pressing sheet is high quality conductive steel spring, good elasticity, strong toughness, high rate of electricity, energy saving, corrosion resistance, high quality and safety.
  • ✔ CONVENIENT TO OPERATION: Simple operation, saving time and effort. Using Spring connectors only process 3 steps: Hold down the item and press the terminal, and then put the peeled wires into the terminal, finally loose hands and finish the connection. Using screw terminal barrier block only have 3 steps too: Firstly, loose the screws, and then put the wires into holes, finally fasten the screws and over.
  • ✔ HIGH QUALITY: There is clear mark on the surface. L end connects live line. N end connects neutral line, the product has passed CE certification, in line with UL, IEC standard requirements. Superior quality and easy to use.
  • ✔ MULTIPURPOSE: Can be used in motor, electrical control, power supply, home appliances, lighting, machinery and other electrical connections.

User questions & answers

Question: What wire sizes can these reasonably handle 24g, 22g, 18g, 16g, 14g, 12g
Answer: Battery Terminals come with one positive battery terminal, one negative battery terminal. one package come with two pcs. LIFEDE supply: toyota battery terminals, positive battery terminal, battery clamps,positive battery terminal clamp, positive battery cable,battery terminals nissan,top post battery,battery terminals,battery posts,battery terminals connector, battery cable end,battery connectors.battery cable clamps.
Question: what's the AWG rating on this
Answer: This battery cable end are universal, so it can fit Cadillac Escalade. It's copper battery Terminals.Any questions about the negative & positive battery terminal, pls let us know.Thank you.
Question: Is it reusable
Answer: yes. This battery cable ends is universal. we also will send new battery terminal on AMAZON. The Nissan Battery Terminal Connectors will be selling on month JUNE.2020. Thanks for your kind cooperation.
Question: What gauge wires do these accomodate
Answer: No battery is required or is replaceable. Digits are always on automatically.

DZS Elec 30pcs Screw Type Quick Connect Terminal 450V 45A 22-10AWG 2/3/4 Position Wire Connectors Butt Terminal Block Universal Reusable Clamp Wire Terminal Wiring 2P 3P 4P

DZS Elec

Based on 136 reviews Check latest price

Product description

Product Description:

Name: Screw Type Quick Wire Connector

Rated Voltage: 450V

Rated Current: 45A

Appropriate Wire: 2.5-4mm2 / 22-10AWG

Fastening Screw: M3x5.5

Stripping Length: 6.5mm/0.26 inch

Working Temperature: -30 to 105 degree

Conductor Material: Copper alloy

Shell Material: Nylon PA66 flame retardant plastics

Fire Protection Level: UL94V-2

Conform to VDE/CE/CB/CQC/SGS standards



Package Include:

15pcs PA10-2P Screw Type Quick Connect Terminal

10pcs PA10-3P Screw Type Quick Connect Terminal

5pcs PA10-4P Screw Type Quick Connect Terminal

  • Type: Screw Type Quick Connect Terminal, Rated Voltage: 450V, Rated Current: 45A, Appropriate Wire: 2.5-4mm2 / 22-10AWG
  • Adopting copper alloy conductor, ensure excellent electrical conductivity.
  • High quality flame retardant shell, long service life, high temperature resistance, aging resistance, corrosion resistance.
  • Easy and fast to install, firmly connection, 6.5mm/0.26 inch stripping length, insert the wire, then fasten the screw.
  • Use: Suitable for 2 way, 3 way and 4 way AC/DC quick wire connection, used for Lighting, switching, wiring, embedded junction box, motor, electrical control, power supply, household appliances, etc.

User questions & answers

Question: Are they marked as shown in the product photo
Answer: Shouldn't be a problem . Working for me .
Question: Are they hollow from one side to the other
Answer: They come all wrapped 8
Question: How many 4 poles come with this kit
Answer: If you're running a top post battery I see no reason for it not too work . I have two Optima batteries in my CJ8 and I have these on both .
Question: Can it accept 12 gauge
Answer: This Battery Terminals Automotive is suitable for use in most vehicles,Fit for most car, boat, van battery. etc. The main components of the Battery Terminals Connectors is made of copper

Terminal Block White Screw Terminal Connector Dual Row Electric Barrier Block 12-Position Terminal Strip, 10 Amp 380 V (10)

Weewooday

Based on 7 reviews Check latest price

Product description



10 Pieces terminal block white screw terminal connector dual row electric barrier block 12-position terminal strip, 10 Amp 380 V



Features:



Nice performance:

These screw terminal blocks allow you to connect multiple items without having to solder or splice, bring you convenience. They are safe to use, suitable for motors, electrical control, household appliances, lighting, machinery and other electric wire connecting.



Specifications:

Material: copper, PP

Color: white

Suitable wire: 2.5 m㎡ wire

Voltage: 380V

Current: 10A

Weight: 155g



Package includes:

10 x Terminal blocks

  • Insulated flame-retardant shell: these block connectors adopt flame-retardant PP material shell, which feature with insulation, corrosion resistance and wear resistance; They can stand temperature between minus 40 to 150 degrees Celsius, have nice electrical conductivity
  • Crimping performance: the plated zinc alloy screws and copper-plated zinc alloy terminals have excellent stability and conductivity, can serve you for a long time
  • Easy to install: you juse need to strip the wires, and insert them into the terminal strip and tighten the screws, no need for troublesome welding; What's more, you can use scissors or other tools, cut the screw terminal block become small parts as you need
  • Multi-purpose: these dual row screw terminals can be applied for the link of lighting lamps, household appliances, electrical control, power supply, electrical maintenance, electrical machinery and more
  • Safe to use: the set screws secure wires reliable contact, and help prevent accidental contact with the terminals

Hxchen 20Pcs 4-Pin 300V KF2EDGK 3.5mm Pitch PCB Screw Terminal Block Connector Green

Hxchen

Based on 38 reviews Check latest price

Product description

Features:

1. PCB din rail adapter.

2. Easy to install and detach.

3. 4 Positions, 3.5mm pitch, PCB Screw Terminal Block Connector.

4. PCB terminal is widely used in almost all electronic equipment, such as small eletronic watches, calculatros, greneral computer, communication electronics equipment, systems, etc.



Specifications:

1. Position: 4P

2. Rated Value: AC300V

3. Material: Plastic,Metal

4. Main Color: Silver Tone, Green

5. Terminal Pitch: 3.5mm/ 0.14inch

6. Product Name: Terminal Blocks Connector

7. Overall Size:14 x 11 x 15mm/ 0.5" x 0.4" x 0.6"( L*W*H)



Package Content: 20Pcs x PCB Teminal Blocks



【Hassle-Free Warranty】: Hxchen guarantee high quality and good service. Here with our 90-day money back risk-free purchase guarantee, order now! If you are not satisfied in any way, Refund or Replacement for any quality problem.

  • 【Package Included】: 20 x PCB Teminal Blocks
  • 【Type】: 4 Positions, Plug-In PCB terminal block connector.
  • 【Easy to Use】: PCB din rail adapter; Easy to install and detach.
  • 【Specification】: Rated Value: AC300V; Terminal Pitch: 3.5mm/ 0.14"
  • 【Application】: PCB terminal is widely used in almost all electronic equipment, such as small eletronic watches, calculatros, greneral computer, communication electronics equipment.

User questions & answers

Question: Does this include male and female blocks
Answer: No. This is specifically designed for the vehicle. The 2011 Impala uses a ACDelco 2BC49X or similar. Search for the ACDelco 2BC49X on Amazon. The 2BC49X *MAY NOT* fit your vehicle, please double-check before buying it! But this is the style used on the Impalas.
Question: Can I use two 4-pole connectors next to each other in an 8-pole socket? What is the pitch of the neighboring pins if I stick two together
Answer: Yes - they are not the exact terminals on your '17 Ram 1500, but very similar - made by the same supplier. We will be adding the exact RAM parts later this year, but this is good solution for your need. Thanks for shopping EDS Parts
Question: Looking at these for a soundweb london blu-100 signal processor. anyone know if this is the correct size
Answer: Yes - and if you want to add the Fuselink that bolts right to the Positive Battery Terminal, here's the link to that: https://www.amazon.com/dp/B07Q17Q9G8 Thanks for shopping EDS Parts
Question: this comes with the din rail adapters correct
Answer: They are 1" tall.

Tnisesm/70pcs 2 Pin & 3 Pin 5mm/0.2inch Pitch PCB Mount Screw Terminal Block Connector (Can be Spliced) TN-T03B

Tnisesm

Based on 26 reviews Check latest price
  • Product Type: Boxed 2 pin & 3 pin Screw Terminal Block Connector, with a phillips screwdriver.
  • Rated Value: AC 300V, 10A
  • For wire size: 14-22AWG; Color: blue
  • Pitch: 5 mm/ 0.2 inch
  • Package include: 60pcs x 2 Pin Screw Terminal Block Connector ; 10pcs x 3 Pin Screw Terminal Block Connector; 1pcs x phillips screwdriver. All packed in a plastic container for easy use.

Product features

Bump Card Slot

Groove design, convenient wiring, multi-wire diameter can be superimposed (2P,3P can be superimposed and combined into 4P, 5P, 6, 7P, etc.)

Copper Tin Pins

The surface of copper material is tinned, which effectively plays the role of anti-corrosion, anti-oxidation and anti-plugging.

Flame Retardant Shell

The plastic shell is made of insulating material, which is not easy to burn after being in fire. It will automatically extinguish after leaving the fire source to ensure the stability of work.

Exquisite Packaging

Screw terminal connectors (2P, 3P) and a mini Phillips screwdriver are placed in a transparent storage box for quick access and protection.

ROCKRIX True Copper 8 AWG Gauge Set Screw Battery Wire Connectors Ring Terminals (Nickel Plated)

ROCKRIX

Based on 30 reviews Check latest price

Product description

Product Description



Four Pack 8 Gauge Ring Terminals with Set Screw



These 8 Gauge ring terminals are made of 100% brass with nickel plated finish to prevent corrosion and designed with a set screw that is tightened down to ensure a secure connection. The ring terminal opening size is 5/16". Pefect for any car audio, marine, or other wiring installations that require a ring terminal.



Specifications:



Four 8 Gauge Ring Terminals

100% Brass with nickel plated finish

Corrosion Resistant

Ring Terminal Opening Size 5/16"

Allen Set Screw for a Secure Connection



This listing is for four pack Ring terminals( 2 red and 2 black)

  • 8 gauge input - Pack 8 Gauge terminals (2 red and 2 black )
  • 100% Brass with nickel plated finish - maximum ultra conductivity and corrosion resistant
  • Allen Set screw ensures tight connection
  • Black / red non-slip silicone loop to differentiate between positive and negative
  • 8 gauge wire input and 5/16" ( 8mm ) ring hole size

Latest Reviews

View all