Best Clamp Ground Circuit Terminal Blocks of 2026

Brian Howie Avatar
Brian Howie
Last Updated: Jan 9, 2026

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Clamp ground circuit terminal blocks are an essential component for any electrical wiring application. These blocks are designed to provide a secure and reliable connection to the ground circuit, ensuring proper grounding and safety. With their innovative clamp design, these terminal blocks offer a secure and easy-to-use solution for connecting ground wires. They come in a variety of sizes and configurations to suit different applications, and are compatible with a range of wire sizes. Whether you're working on a small DIY project or a large-scale electrical installation, clamp ground circuit terminal blocks are a must-have item for any electrician or DIY enthusiast.

At a Glance: Our Top Picks

Erayco USLKG2.5 Ground Screw Terminal Block Cover #TOP 1
Erayco USLKG2.5 Ground Screw Terminal Block
ftb score rating icon 9.9
Erayco USLKG5N Ground Circuit Terminal Block Cover #TOP 2
Erayco USLKG5N Ground Circuit Terminal Block
ftb score rating icon 9.8
Erayco USLKG2.5 Ground Terminal Block Cover #TOP 3
Erayco USLKG2.5 Ground Terminal Block
ftb score rating icon 9.6

Top 10 Clamp Ground Circuit Terminal Blocks

Erayco USLKG2.5 Ground Screw Terminal Block

Erayco USLKG2.5
Green & Yellow
Erayco USLKG2.5 Ground Screw Terminal Block Cover
Erayco USLKG2.5 Ground Circuit Connection Terminal Block, Screw Clamp, 600V 20A 24-12AWG, DIN Rail Mounted, Pack of 50 (Green & Yellow)

The Erayco Ground Screw Terminal is designed to help you connect ground wires securely and efficiently. Its nylon housing and quality copper with nickel-plated screws ensure durability and reliable electrical conductivity. Rated for 600 volts and 20 amps, this terminal block is suitable for handling moderate electrical loads safely. The large wire entry funnel makes it easier for you to insert wires ranging from 24 to 12 AWG, saving time and reducing frustration during installation. Whether you're dealing with solid or flexible cables, this terminal block supports a variety of wire sizes, making your wiring projects smoother and more convenient.

What We Like
Durable nylon and copper materials
High voltage and current rating
Wide wire size compatibility
Easy wire insertion design
#TOP 2

Erayco USLKG5N Ground Circuit Terminal Block

USLKG5
Erayco USLKG5N Ground Circuit Terminal Block Cover
Erayco USLKG5N DIN Rail Mounted Ground Circuit Connection Terminal Block, 600V 30A, 24-10 AWG, Screw Clamp (Pack of 20)

The Erayco USLKG5N is a pack of 20 ground circuit connection terminal blocks designed for conducting electricity and transmitting electrical signals. The terminal blocks are made with a nylon PA66 housing, fine copper, and nickel-plated screws. They have a rated voltage of 600V and rated current of 30A, and can accommodate wire sizes from 24-10 AWG with a solid/soft cable of 0.2-4 mm². The large wire funnel entry makes it easy to connect wires.

What We Like
DIN rail mounted for easy installation
Large wire funnel entry for easy wire connection
Can accommodate a wide range of wire sizes from 24-10 AWG
#TOP 3

Erayco USLKG2.5 Ground Terminal Block

USLKG2.5
Erayco USLKG2.5 Ground Terminal Block Cover
Erayco USLKG2.5 DIN Rail Mounted Ground Circuit Connection Terminal Block, 600V 20A, 24-12 AWG, Screw Clamp (Pack of 20)

The Erayco Ground Terminal Block is designed to help you make secure and reliable electrical connections. It features a screw clamp design that firmly holds wires in place, making installation and maintenance easier. Made with durable nylon housing and high-quality copper with nickel-plated screws, it ensures long-lasting performance and resistance to wear. Rated for up to 600 volts and 20 amps, this terminal block can handle a wide range of electrical tasks safely. Its large wire entry accommodates various wire sizes, so you can use it with different cables without hassle.

What We Like
Durable nylon housing
Secure screw clamp
High current and voltage rating
Wide wire size compatibility
#TOP 4

Aerexier USLKG5N

USLKG5N
Aerexier USLKG5N Cover
10Pcs DIN Rail Mounted Ground Circuit Connection Terminal Block Screw Clamp Connector (USLKG5N)

The Aerexier Ground Terminal Block is a versatile and efficient solution for connecting ground circuits. With its Nylon PA66 Housing and Alloy Copper Bodies, it ensures durability and reliability. The terminal block is designed for easy installation, thanks to its DIN Rail Mounting and universal mounting foot. It securely locks onto the din rail and the screw terminal holds the wires solid, making it convenient to insert and secure the wires. Whether you are working on distribution boxes, cabinets, home appliances, electronic circuits, or machines, this ground terminal block is a great choice. Its rated voltage/current of 690V/34A allows for a wide range of applications, providing you with a reliable and efficient connection solution.

What We Like
Durable
Easy Installation
Secure Wire Connection
#TOP 5

uxcell 1 in 6 Out DIN Rail Terminal Block

a19061300ux0505
6 Outlets
uxcell 1 in 6 Out DIN Rail Terminal Block Cover
uxcell 1 in 6 Out DIN Rail Terminal Blocks 690V 250A Max Input Distribution Block for Circuit Breaker

The uxcell DIN Rail Terminal Block offers a practical solution for your electrical wiring needs with one input and six output connections. It is designed for easy installation, either by securing it with screws or snapping it onto a standard 35mm DIN rail, saving you time and effort. The terminal block features a flame-resistant shell combined with a solid brass conductor, ensuring reliable conductivity and safety during use. Additionally, its transparent plastic cover protects you from accidental contact with live terminals, providing an extra layer of safety while allowing you to see the connections clearly. This makes the product a convenient and secure choice for organizing your circuit connections.

What We Like
Multiple output connections
Easy installation
Flame-resistant shell
Solid brass conductor
Protective transparent cover
#TOP 6

uxcell 1in9 Out DIN Rail Terminal Block

a19061300ux0483
Grey
9 Outlets
uxcell 1in9 Out DIN Rail Terminal Block Cover
uxcell 1 in 9 Out DIN Rail Terminal Blocks 690V Connectors Distribution Block

The uxcell DIN Rail Terminal is designed to make your electrical setup easier and safer. It provides one input and nine outputs, perfect for distributing power efficiently. Installing it is simple since it securely attaches to a standard 35mm DIN rail, saving you time and effort. The terminal block features a flame-resistant shell combined with a solid brass conductor, ensuring excellent electrical conductivity and safety. Additionally, its clear plastic cover protects you from accidental contact with live parts, giving you peace of mind during use. This product is a reliable choice for neat and secure wiring projects.

What We Like
Multiple output connections
Easy DIN rail installation
Flame-resistant shell
Solid brass conductor
Protective clear cover
#TOP 7

DIN Rail Mounted Ground Circuit Terminal Block Connector

USLKG2.5N
DIN Rail Mounted Ground Circuit Terminal Block Connector Cover
10Pcs DIN Rail Mounted Ground Circuit Connection Terminal Block Screw Clamp Connector (USLKG2.5N)

This DIN Rail Mounted Ground Circuit Terminal Block Connector features a universal mounting foot that easily mounts onto DIN rail. It is made of Nylon PA66 Housing + Alloy Copper Bodies + Nickel-plated Screws, which lock firmly on the din rail and hold the wires solid. This product is ideal for distribution boxes/cabinets and general terminals such as home appliances, electronic circuits, and machines.

What We Like
Easy to install onto DIN rail
Securely holds wires in place
Great for distribution boxes/cabinets and general terminals
#TOP 8

uxcell 1-in-16 DIN Rail Terminal Block

a19061300ux0513
16 Outlets
uxcell 1-in-16 DIN Rail Terminal Block Cover
uxcell 1 in 16 Out DIN Rail Terminal Blocks 690V 400A Max Input Distribution Block for Circuit Breaker

The uxcell DIN Rail Terminal Block offers a convenient way to manage your electrical connections with one input and sixteen outputs, making it ideal for distributing power efficiently. Its easy installation lets you quickly secure it on a standard 35mm DIN rail or with screws, saving you time and effort. The block is built with a flame-resistant shell and solid brass conductor, ensuring strong conductivity and safety while handling your circuits. Additionally, a transparent plastic cover protects you from accidental contact with live terminals, providing peace of mind during use. This design keeps your wiring neat and secure, making your setup cleaner and safer.

What We Like
Multiple output connections
Easy DIN rail installation
Flame-resistant shell
Solid brass conductor
Protective transparent cover
#TOP 9

Meowlian UK35N Gray DIN Rail Terminal Blocks

UK35N DIN Rail Terminal Blocks
UK35N Gray
Meowlian UK35N Gray DIN Rail Terminal Blocks Cover
5pcs Gray UK35N DIN Rail Terminal Blocks Screw,Application for 600V 130A 1/0-12AWG Ground Circuit Terminal Blocks Electrical Distribution Box,Solar Power System,PLC Industrial Control DIY RV Panel

The Meowlian DIN Rail Terminals are built with a high-quality, flame-retardant nylon shell that resists high temperatures and harsh weather, ensuring durability and safety for your electrical setups. The pure copper conductive sheet inside guarantees excellent contact and minimal resistance, improving the efficiency of your connections. Thanks to their smart design and flexible plastic, these terminals easily snap onto a 35mm DIN rail and can handle repeated bending without damage, making installation hassle-free. When wiring, the simple screw clamp system allows you to secure wires firmly with just a screwdriver, providing a reliable and convenient connection every time.

What We Like
Flame-retardant nylon shell
Pure copper conductive sheet
Durable flexible design
Easy screw clamp wiring
#TOP 10

uxcell 1 in 8 Out DIN Rail Terminal Block

a19061300ux0511
8 Outlets
uxcell 1 in 8 Out DIN Rail Terminal Block Cover
uxcell 1 in 8 Out DIN Rail Terminal Blocks 690V 400A Max Input Distribution Block for Circuit Breaker

The uxcell DIN Rail Terminal Block offers a convenient way to distribute electrical connections with one input and eight outputs. It’s designed for easy installation, either by securing it with screws or mounting it on a standard 35mm DIN rail, saving you time and hassle. The terminal block features a flame-resistant shell combined with a solid brass conductor, ensuring strong conductivity and safety during use. Additionally, a clear plastic cover protects you from accidental contact with the terminals, providing an extra layer of safety while you work. This product simplifies your wiring setup and keeps it neat and secure.

What We Like
Multiple output connections
Easy installation options
Flame-resistant shell
Solid brass conductor
Protective clear cover
Buying Guide Image

Frequently Asked Questions (FAQs)

1. How do you ground a terminal block?

Grounding terminal blocks clamp mechanically onto the DIN Rail by tightening the center mounting screw, making a reliable electrical connection between the cage clamp terminals and the DIN Rail. The rail serves as a busbar and automatically distributes ground potential to all other ground terminals on the same rail.

2. Is it safe to use terminal blocks in residential wiring?

Other names for terminal blocks are connection terminals, terminal connectors and screw terminals. The applications of terminal blocks are wide-ranging, but essentially they're used wherever you need to connect electrical systems safely.

3. What is clamp terminal?

The spring clamp terminal block product family comprises of terminal blocks that are based on a spring clamp connection. By spring clamp connection, we mean an electrical connection which is established by clamping an individual stripped conductor by means of a spring.

4. What is a terminal connector block?

A terminal block consists of a modular housing with an insulated body that secures two or more wires together. Terminal blocks—also referred to as terminal connectors, connection terminals, or screw terminals—are used in a wide array of applications where electrical systems need to be safely connected.

Editor's Notes

During our clamp ground circuit terminal block research, we found 24 clamp ground circuit terminal block products and shortlisted 10 quality products. We collected and analyzed 4,107 customer reviews through our big data system to write the clamp ground circuit terminal blocks list. We found that most customers choose clamp ground circuit terminal blocks with an average price of $12.42.

The clamp ground circuit terminal blocks are available for purchase. We have researched hundreds of brands and picked the top brands of clamp ground circuit terminal blocks, including Erayco, Aerexier, uxcell, Meowlian. The seller of top 1 product has received honest feedback from 64 consumers with an average rating of 4.9.

Written by
Brian Howie Avatar

Brian Howie is a content writer and senior industrial designer. After graduation from Westminster College, he has been engaged in product design and manufacturing for 18 years. Brian Howie has always found great pleasure in designing industrial products and sharing his ideas and experience online.