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Terminal Blocks

Terminal Blocks

Connectivity solutions for future ready networks

Terminal blocks are essential components used in the assembly of industrial control cabinets, providing reliable connectivity solutions and simplifying complex wiring requirements.

An extensive range of terminal blocks offers unparalleled versatility, reliability, and safety.
With 5 distinct connection technologies and varied functional offerings, we cater to a wide
array of applications. Our products are designed to meet the most stringent global
standards, including UL, CSA, CE, ATEX, IECEx and more. With our easy-to-use visual
configurator, users can create customized solutions suitable for their unique requirements.

Connection Technology

To meet the diverse industry and application needs across the globe, we offer a wide range of Terminal Blocks in 5 different connection technologies.

PUSH-IN

Push-In Connection Technology offers an innovative, tool-less wiring solution, ensuring a fast, reliable, and vibration-resistant connection. This technology allows users to simply push solid conductors or ferrule-crimped wires into the terminal block for a secure connection, eliminating the need for screwdrivers or any additional tools.

The Push-In system utilizes high-quality stainless steel springs to maintain consistent contact pressure, ensuring a gas-tight and vibration-proof connection. This method drastically reduces installation time while increasing reliability, particularly in applications that require frequent assembly and disassembly.

Tool-free installation: simple push-in of wires without tools.
Time-saving: Reduces installation time by up to 75% compared to traditional methods.
Vibration resistance: A pre-stressed spring ensures secure connections even in high-vibration environments.
Safety: Reliable, gas-tight connections provide increased safety and long-term stability.

PUSH-IN

Spring Clamp Connection Technology is particularly suited for applications with high vibrations and high thermal cycling. Terminals with spring clamp technology have specialised high-tensile springs, that clamp down onto the wire, ensuring constant pressure over time and under varying environmental conditions. The spring mechanism allows wires to be securely connected without the need for screws or additional clamping mechanisms.
Spring Clamp Technology is designed to accept both solid and stranded wires, offering flexibility across various industrial applications.

Screwless connection: No tightening of screws required for reliable connections.
Time-saving: Reduces installation time by up to 50% compared to traditional methods.
Vibration resistance: Pre-stressed springs ensure secure connections even in high-vibration environments.
Safety: Reliable, gas-tight connections provide increased safety and long-term stability.

PUSH-IN

Screw Clamp Connection Technology is a reliable method widely used across industries. In this technology, a screw is used to tighten the clamp, which brings the connected wire in contact with the current-carrying element, creating a strong and secure connection. The torque applied during tightening ensures a firm and secure contact, making it highly effective in high-current applications where robust connections are crucial.

Versatile connection: Most popular connection method.
Global Approvals: A wide range of product and industry-wide approvals.
Vibration resistance: Specialized alloy steel clamps with integral locking feature prevents self-loosening of screws.
Safety: Reliable, gas-tight connections are made because of a large contact area between the clamp and the current carrying element.

PUSH-IN

Stud & Bolt Connection Technology is designed for high-current, heavy-duty applications. This method uses bolts and nuts to secure wires to the terminal, ensuring a reliable and robust mechanical connection. It is especially suited for connecting large-gauge wires in environments where high electrical loads are common. The connection ensures long-term stability even in harsh operating conditions.

Robust connection: Most popular connection method for heavy duty applications.
Global Approvals: A wide range of product and industry-wide approvals.
Vibration resistance: Specialized locknuts and spring washers prevent loosening of connections.
Safety: Reliable, gas-tight connections are made because of a large contact area between the crimped wire and the current carrying element.

PUSH-IN

Spring Loaded Screw Connection Technology is a hybrid system that uses a spring to maintain consistent pressure on the wire while the screw ensures a robust mechanical connection. The spring compensates for any loosening of the screw over time, providing a maintenance-free solution that ensures constant contact pressure even in environments subject to vibration or thermal expansion.

Specialized connection: The best of both worlds, with a screw clamp connection being secured with an additional spring.
Industry-Specific Approvals: Compliance under CEGB regulation, especially for SEC and NTPC panels.
Vibration resistance: Additional spring prevents self-loosening of screws.
Safety: Reliable, gas-tight connections are made because of a large contact area between the clamp and the current-carrying element.

Product Groups

Selecting the right terminal block can be a daunting task. Pick the right terminal for your application from one of the product groups listed below:

  • Push-In Type CP Series

    Push-In Type CP Series

    The CP Series Push-In Terminal Blocks offer an advanced tool-less wire connection system that ensures secure, vibration-resistant, and gas-tight connections. Utilizing specialised high-grade stainless steel spring clamps, the CP Series terminals allow users to effortlessly connect solid wires and flexible wires with crimped ferrules. The pre-stressed spring design ensures a reliable connection even under harsh environmental conditions.

  • Spring Clamp Type CX Series

    Spring Clamp Type CX Series

    The CX Series Spring Clamp Terminal Blocks are an ideal choice for applications with extreme vibrations. The terminals have specialised high-quality stainless steel spring clamps which ensure vibration-proof, gas-tight, and reliable connections. With easy wire entry and ferrule compatibility, the CX Series terminals simplifies the wiring process in industrial control cabinets and smaller enclosures.

  • Standard Screw Type CTS Series

    Standard Screw Type CTS Series

    The CTS Series Terminal Blocks feature a robust screw-type connection system designed for high torque, ensuring secure, gas-tight connections. These blocks are suitable for a wide range of applications, offering versatile connection options for different wire sizes . With an emphasis on safety and reliability, the CTS Series delivers consistent performance in critical industrial environments.

  • High Performance Screw Type CY Series

    High Performance Screw Type CY Series

    The High Performance CY Series Screw Clamp Terminal Blocks have a very reliable high-torque clamping system, ensuring secure, gas-tight connections. These blocks are ideal for applications requiring a reliable connection for wires with or without ferrules. The CY Series terminals have a pluggable jumpering system for enabling cross-connections and they also have an industry first 3 way marking system, facilitating easy circuit identification.

  • Stud & Bolt Type Terminals

    Stud & Bolt Type Terminals

    Stud & Bolt Type Terminal Blocks are designed for extreme durability, featuring a high-torque clamping system that ensures reliable and robust connections. Suitable for high current applications, these blocks also allow the connection of multiple wires to a single clamping point with the aid of ring and fork type lugs/ferrules.

  • Pluggable Terminals

    Pluggable Terminals

    Pluggable Terminal Blocks offer a modular and flexible solution for quick and reliable wire connections. These terminals allow for easy assembly and disassembly, making them perfect for applications that require frequent reconfiguration or systems that require on-site assembly.

  • Spring Loaded Terminals

    Spring Loaded Terminals

    The Spring Loaded Terminal Blocks provide enhanced safety and reliability, featuring a built-in spring mechanism that ensures the clamp remains secure even in high-vibration environments. These terminals are ideal for applications in the electric supply industry, where safety and compliance with ESI standards are critical. The spring-loaded design offers additional protection by preventing loosening under varying environmental conditions,

  • High Temperature Ceramic Terminals

    High Temperature Ceramic Terminals

    Engineered for extreme environments, High-Temperature Ceramic Terminal Blocks offer excellent thermal stability and electrical insulation. These blocks are specifically designed for applications exposed to high temperatures, such as furnaces, kilns, and Fire proof junctions boxes.

  • Melamine Terminals

    Melamine Terminals

    Melamine Terminal Blocks offer superior heat resistance and mechanical strength, making them ideal for high-temperature applications in power plants and industrial machinery. Their melamine construction provides excellent insulation and durability, ensuring reliable performance in demanding operational conditions.

  • Terminal Blocks for Rolling Stock

    Terminal Blocks for Rolling Stock

    Designed to meet the rigorous demands of the transportation industry, Terminal Blocks for Rolling Stock applications are built for vibration resistance and long-term reliability. These blocks are compliant with industry standards for shock and vibration, making them ideal for enabling secure and consistent electrical connections in harsh, dynamic environments.

  • Terminal Blocks for Hazardous Locations

    Terminal Blocks for Hazardous Locations

    For environments where safety is paramount, Terminal Blocks for Hazardous locations comply with stringent safety standards, providing secure and reliable connections. These terminals are especially suitable in industries such as oil & gas, chemical processing, and mining, where explosion risks are high. The robust construction and safety features ensure optimal performance and protection in hazardous environments.

Product Functions

All our Product Groups include a wide range of functional terminal blocks designed to meet your diverse wiring requirements. From feedthrough, multiple connection, and multi-level configurations to more advanced options like Fuse, Disconnect & Test, and Grounding functions, we offer over 14 different terminal block functionalities to support every aspect of your electrical installation.

<p>Product Testing &amp; Validation</p>

Product Testing & Validation

To ensure that our products can be used across the globe in various industries, they are put through a rigorous range of test procedures in accordance with UL 1059, UL486E, IEC 60947-7-1/-2/-3, 
CSA 22.2 No 158, IEC61373, EN45545, etc. Over the years, with our experience, we have also established additional test protocols based on the usage of products in various applications in different geographies.

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Product & Industry Approvals

To ensure that product performance in actual usage is in accordance with defined parameters, it is important to test & certify products as per recognized international standards and certification bodies. Most of Connectwell products comply and are certified or approved in accordance with:

  • CB certification as per IEC standards
  • Underwriter's Laboratory (UL)
  • Canadian Standards Association (CSA)
  • Eurasian Conformity Certificate (EAC)
  • China Compulsory Certificate (CCC)
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<p>Factory Built Din Rail Assemblies</p>

Factory Built Din Rail Assemblies

Control cabinet manufacturers can avail themselves of an extremely value-added service by ordering Factory Built DIN Rail Assemblies. These customized assemblies are built as per the users requirements and specifications.
An easy-to-use software, VIRTUALCONFIG, is also available to help users build their own DIN Rail configurations.

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Know more about Connectwell's Terminal Blocks

Screw Vs Push-In Terminal BlocksScrew Vs Push-In Terminal Blocks
Push-In Terminal BlocksPush-In Terminal Blocks
CY Series Screw Clamp TerminalsCY Series Screw Clamp Terminals
Pluggable JumpersPluggable Jumpers
Terminal Blocks for Solar ApplicationsTerminal Blocks for Solar Applications
Terminal Blocks for Rolling StockTerminal Blocks for Rolling Stock
Screw Vs Push-In Terminal BlocksScrew Vs Push-In Terminal Blocks
Push-In Terminal BlocksPush-In Terminal Blocks
CY Series Screw Clamp TerminalsCY Series Screw Clamp Terminals

Product Updates

CPS Series PUSH-IN SIDE ENTRY Terminal Blocks

CPS Series PUSH-IN SIDE ENTRY Terminal Blocks


CPS Series - Push In Side Entry Terminal Blocks combine the best of all Terminal Block design concepts to bring you a superior product that combines the speed of push in connection technology with the established convenience and safety of side wire entry design. This allows easy wire connections even in the smallest of spaces.

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Terminal Blocks with Multiple Connections on Multiple Level

Terminal Blocks with Multiple Connections on Multiple Level


Push-In Connection Technology Offers tool-free, quick, and secure wire insertion with vibration-proof connections, reducing wiring time and maintenance effort. The Multilevel Terminal with Multiconnection combines two functions in one, simplifying panel design, reducing costs, and minimizing installation effort, while enabling quick and flexible system.

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Push-in Connection Technology Distribution Blocks

Push-in Connection Technology Distribution Blocks


Designed for modern, space-constrained installations, this solution is 40% more compact than traditional jumpered feed through setups. Its smart space optimization ensures maximum efficiency, making it ideal for sleek, modern applications.

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6.sq.mm Fuse, Knife Disconnect & Component Carrier Terminal Blocks

6.sq.mm Fuse, Knife Disconnect & Component Carrier Terminal Blocks


High current fuse and disconnect terminal blocks offer reliable protection, easy disconnection, and support high loads. LED fuse terminals simplify fault detection, while knife disconnect terminals allow easy cross-connection in DCS systems. Automotive fuse terminals handle various current ratings. Pre-assembled component carriers and enclosed designs reduce accessories and inventory. Integrated test points enable quick diagnostics.

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Push-in Technology High Current Terminal Blocks

Push-in Technology High Current Terminal Blocks


Made from UL94 V0-rated Polyamide 6,6, this terminal offers excellent flame retardance and durability for critical applications. Its tool-free wiring ensures quick, secure, and vibration-proof connections, reducing installation time. Rated for 1000V, it handles high-voltage needs safely. Available in multiple colors for easy circuit identification, it also features an enclosed design to cut accessory needs and inventory costs. Integrated 2.3 mm test points enable fast, easy diagnostics.

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Multiple Connection Knife Disconnect Terminal Blocks

Multiple Connection Knife Disconnect Terminal Blocks


The multiple connection terminal block offers separate points for each wire, avoiding wire bundling and ensuring neat, safe wiring. Its screwdriver-operated knife disconnect ensures secure, shock-free operation, while the disconnect function allows circuit isolation without removing wires. Top and side marking provisions simplify identification, reduce errors, and improve reliability.

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4 Level Marshalling Terminal Blocks

4 Level Marshalling Terminal Blocks


This terminal block offers 16 connection points in just 9mm width, enabling high-density wiring and efficient space use. Made from UL94 V0-rated material, it ensures flame retardance and durability. Color-coded push buttons allow easy, error-free wiring, while the stackable design improves stability and organization. Integrated test points support quick, simple diagnostics.

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Muliple Level with Mulitple Connection Pluggable Terminal Blocks

Muliple Level with Mulitple Connection Pluggable Terminal Blocks


This terminal block combines spring and plug connections for both fixed and removable wiring, supporting fast harness assembly and integration. Removable plugs simplify testing and maintenance, while coding pins ensure error-free connections. Locking clips provide vibration-proof stability, and strain relief plates protect wires from damage, enhancing reliability and durability.

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Terminal Blocks for Rolling Stock

Terminal Blocks for Rolling Stock


This compact terminal block is ideal for tight, high-density spaces, offering side-entry wiring for easy installation. It mounts easily on DIN rails, with spring clamps that resist shock and vibration. Its modular, stackable design supports system expansion, while lightweight yet durable construction ensures long-term reliability. Available in 2- and 4-conductor variants for flexible wiring.

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Spring Clamp Side Entry Terminal Blocks

Spring Clamp Side Entry Terminal Blocks


This terminal block features side entry wiring for easy access in tight spaces and supports both top and side spring actuations for flexible operation. It accommodates a wide range of wire sizes, ensuring versatility across applications. With a 1000V rating, it safely handles high-voltage requirements, enhancing reliability and compliance.

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Lighting Pole Terminal Block

Lighting Pole Terminal Block


Say No to looping connections and yes to reliablity with CLP Series Lighting Terminal Blocks for Street Light Applications

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Connectwell Fuse Terminal Blocks for Vehicle Protection
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Curb The Chaos With The Spring Clamp Side Entry Terminal Blocks
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Discover How Connectwell Side Entry Spring Clamp Terminal Blocks Simplify Complex and Dense wiring in the Machine Building Industry.

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Simplify. Secure. Snap-On. Connectwell Snap-On Terminal Blocks For Grounding
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Simplify. Secure. Snap-On. Connectwell Snap-On Terminal Blocks For Grounding

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Upgrade to the safer way to disconnect and test electrical cricuits.
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Uncluttering Your Marshalling Cabinet Wiring, 32 Connections Points at a Time
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Uncluttering Your Marshalling Cabinet Wiring, 32 Connections Points at a Time

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A Powerful Terminal Block for the Power Industry
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