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Secure wiring at every connection point

Terminal blocks join and secure conductors within luminaires, especially at mains input and junctions. We help select blocks suited to your load, wiring and access for safe, reliable connections.

Common Applications

  • Internal luminaire wiring
  • Mains input connections
  • Junction points in lighting assemblies
  • Serviceable and maintainable connections

Common questions

  • How do I choose the right terminal block?

    Terminal block selection depends on the conductor type – solid or stranded – and size, the load and current, the connection point, and whether screw or spring-clamp termination suits your process. Pole count, mounting and access also matter. Share your conductor details, load and application, and we can help identify a suitable terminal block for safe, secure connections.

  • What is the difference between screw and spring-clamp terminal blocks?

    Screw terminal blocks clamp the conductor with a screw and suit many general connections, while spring-clamp blocks hold the conductor with a spring for fast, repeatable, vibration-resistant termination. Both are designed for secure long-term connections under load. The right choice depends on the conductor, load and process, and we can advise on the most suitable option.

  • Are terminal blocks suitable for mains and higher-load connections?

    Yes. Terminal blocks are designed for secure connections at mains input and junction points, including connections that must stay reliable under load over time. Selecting a block rated for the conductor and current is essential for safety. Share the load, conductor and connection point and we can identify a suitably rated terminal block.

Terminal Selection

Choosing the right terminal block, matched to your conductor, load and access, supports safe connections and consistent, maintainable luminaire wiring.

  • Load Rating

    Conductor and load matching

    We help match terminal blocks to your conductor type, size and load, so connections are safe and correctly rated under service conditions.

  • Termination

    Screw or spring-clamp

    Guidance on screw or spring-clamp termination to suit your conductor, load and assembly process for secure, repeatable connections.

  • Configuration

    Poles and mounting

    Advice on pole count and mounting suited to the connection point and wiring arrangement for a correct, tidy fit.

  • Maintainability

    Serviceable connections

    Support selecting blocks that allow secure connection with suitable access for inspection and servicing.

Selecting terminal blocks

Terminal blocks organise and stabilise internal wiring in luminaires, providing secure connections at mains input and junction points that must stay reliable under load. They are available in screw and spring-clamp variants and various pole and mounting configurations. The right block depends on the conductor, load, connection point and access required.

How we support terminal selection

  • Terminal block selection for your conductors
  • Conductor, load and current matching
  • Screw and spring-clamp advice
  • Pole and mounting configuration guidance
  • Safe, secure connection support
  • Product data and technical support

The Terminal Block Range

  • Electro Terminal SLK 3 spring-clamp terminal block.

    Piano key push wire connectors

    Fast, vibration-resistant termination for secure, repeatable connections.

  • Lever connectors

    Screw-clamp blocks for secure general and mains connections.

  • Mains & Junction Blocks

    Blocks for secure mains input and multi-conductor junction points.

  • Electro Terminal SLK X configurable terminal block.

    Configurable Blocks

    Blocks in various pole and mounting options to suit the wiring arrangement.

The Benefits

The right terminal blocks support safe connections, consistent luminaire wiring and dependable performance under load over time.

  • Safe, secure connections
  • Consistent wiring quality
  • Reliable performance under load
  • Easier servicing and inspection

Unsure which terminal block you need?

Terminal block selection depends on the conductor type and size, load, connection point and whether screw or spring-clamp termination suits your process. Share these details and we can help identify a suitable terminal block, subject to confirming conductor and load compatibility.

Frequently asked questions

  • What information do you need to recommend a terminal block?

    The most useful details are the conductor type – solid or stranded – and size, the load and current, the connection point (mains, junction or internal), the number of poles, the termination preference and the mounting. With this we can identify a suitable terminal block and confirm compatibility with your conductor and load, and flag anything that needs checking.

  • Can terminal blocks be used with both solid and stranded conductors?

    Many can, depending on the product and termination type, though the suitable block can vary with the conductor. Using a block rated for your conductor and load is essential for a safe connection. Share the conductor type, size and load and we can identify a compatible terminal block for dependable, secure wiring.

  • Which is better for my assembly – screw or spring-clamp?

    It depends. Spring-clamp blocks give fast, repeatable, vibration-resistant termination that suits volume assembly, while screw blocks suit many general and mains connections. Both are designed for secure long-term connections under load. Sharing your conductor, load and process lets us recommend the most suitable option for safe, efficient wiring.

  • Do you provide product data for terminal blocks?

    Yes. We can provide datasheets and technical documentation to support terminal block selection and assembly. Tell us the products or application and we can supply the relevant data, or help identify a suitable block from your conductor and load requirements, supporting accurate selection and safe, dependable assembly.

  • Can you supply terminal blocks alongside other lighting components?

    Yes. We can supply Electro Terminal terminal blocks alongside PCB connectors, looms and Tridonic drivers, modules and controls, so you can source a more complete build from one place. We help match blocks to the conductors and components in your luminaire, supporting efficient assembly and dependable connections.

Need help selecting a terminal block?

Share your conductor, load and assembly details and we’ll help identify a suitable terminal block for your build.