Would you like to do less twisting and turning? Go screwless and avoid loose connections too!

Screwless DIN-Rail Terminal Blocks

Why should I use screwless versus standard terminal blocks?

There is a growing trend in the industrial marketplace towards screwless terminal block technology.
Screwless clamping technology offers customers several benefits:

• Speed: On average, screwless connections can be made in half the time as screw type connections, cutting installation labor costs in half.
  
  
• Ease: No need for twisting and turning screws, so screwless terminal blocks are much easier on the installer's hands and arms. Also, wiring from the top of the terminal blocks allow installers to accurately and reliably see the wire fully inserted into the spring clamp.
  
  
• Safety: Never have a problem with loose connections from loose screws again!
  Meets the same UL, CSA, and IEC standards as screw-type terminal blocks.
  
  
• Reliability: Screwless terminal blocks provide a vibration proof connection
  
  
• Maintenance-Free: The screwless spring clamp conforms to the wire with constant tension, making it maintenance-free.

Are there any trade-offs to going screwless versus using screws?

Unless you need to clamp multiple wires to the same connection point, the answer is no. If you do, then there may be a slight trade-off in requiring more panel space than with screw terminal blocks. Unlike screw terminal blocks, screwless terminal block spring-clamps are designed to clamp a single wire, only. This is why multiple versions exist like the "one-to-two" or "two-to-two." These versions allow multiple wires to be "tied" together via multiple spring-clamps.

How do screwless terminal blocks work?

It's pretty simple: Push, Insert, Release. Just push your screwdriver into the spring clamp (always a rectangular shaped hole) to open the spring clamp, insert the stripped wire into to the clamp (always a circular shaped hole), and pull out your screwdriver to release the clamp against the wire. That's it. The connection is made.

Model Types

Available model types for our screwless DIN-rail terminal blocks include:

• Single-level feed-through terminal blocks provide the means to connect two wires together, and are available in sizes suitable for up to 8 AWG wire.
  
  
• Double-level terminal blocks offer twice the wiring density of single-level feed-through blocks.
  The DN-QD12X model is supplied with an internal jumper to common all four of its connection points. LED and a diode versions are offered in this style.
  
  
• Screwless One-Connection to Two-Connection Terminal Blocks - Unlike screw terminal blocks, screwless terminal block spring-clamps are designed to clamp a single wire. If your application requires multiple wires to be tied together, we offer multiple versions, including ‘one-to-two’ and ‘two-to-two’ models. These versions allow multiple wires to be connected together by way of multiple spring-clamps. LED and diode variations are also available in this style.
  
  
• Screwless Two-Connection to Two-Connecton Terminal Blocks - The “two-to-two” version allows multiple wires to be connected together by way of multiple spring-clamps. LED and diode variations are also available in this style.
  
  
• Screwless knife-blace disconnect terminal - The DN-QKBD12 model allows fast circuit disconnection without rewiring.
  This model provides circuit disconnection capability by means of a pivoting, insulated “knife-blade.”
  
  
• Screwless Ground Terminal Blocks Ground terminal blocks are used to mechanically and electrically connect wires to the DIN-rail by means of a conducting clamping foot. In this way, the DIN rail can function as a ground bus bar. Ground blocks are molded in green and yellow per international standards.

Accessories for Screwless Terminal Blocks

Available accessories include:

• 35 mm wide DIN-rail
• End bracket
• End Cover
• Angled support bracket
• Jumper bar
• Marking Accessories (marking tags, indelible marking pen)

NOTE: For further details or technical specifications, select the desired product category and select the "Products" tab and click on the desired "Item Code" link, or select the "Technical Info" tab.