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ENTRELEC is one of the leading manufacturers of terminal blocks with over 50 years’ experience. ENTRELEC SNK and SNA terminal blocks; SNK terminal blocks use spring technology, and the SNA range uses screw terminals.  The growing ENTRELEC product line are available in a variety of different styles. Dalroad is an approved distributor or ENTRELEC products the range available includes feed through terminals, double deck terminals ground terminals, fuse terminals, three level sensor terminals and ENTRELEC terminal blocks.




A terminal block is a tool used to connect two or more wires together safely. Also referred to as terminal block connectors, a terminal block allows users to connect multiple outgoing wires to a single incoming wire. Choosing the wrong connector for your design can cause a variety of problems, so it is imperative to understand the various types of connectors. And while many types of connectors are available. There are various types of terminal blocks available, including:

–              Feed-through terminal blocks

–              Three level terminal blocks

–              Sensor terminal blocks

–              Double deck terminal blocks

–              Distribution terminal blocks

–              Neutral conductor terminal blocks

–              Ground terminal blocks

–              Test circuit/metering terminal blocks

–              Fuse holder terminals blocks

–              Component holder terminal blocks

–              Thermocouple terminal blocks

–              Disconnect terminal blocks

–              Heavy duty terminal blocks

–              Minblocks


While each specific type of block may be used in a different context, they all provide the same function to securely and reliably connect electrical components. Clamping options for screw, pi-spring and push-in are available depending on the wire or conductor size needs of a user.



ENTRELEC terminal blocks are available in multiple colours for easy circuit identification, and single, double deck and triple deck for maximum power distribution flexibility.

DIN Rail terminal blocks provide users with a way to distribute power and signal on a DIN rail system.

To distribute power and signal, terminal blocks are needed, one of the largest connection offering on the market, ENTRELEC terminal blocks benefit from the best connection. Offering a solution for all connection challenges, Entrelec connection capacity is from 0.22 to 300 mm² (22AWG to 1000kcmil).

Terminal blocks

PI-Spring (Push-in and spring) technology

Pluggable technology

Screw clamp technology

Spring loaded screw clamp technology

Spring technology

Stud technology



Building industry – The installation terminal blocks are largely used in distribution cabinets of public buildings.  Save space in cabinets with ENTRELEC’s compact design and multi-level terminal blocks.


Railway industry – ENTRELEC provides the most extensive block range and solutions for rolling stock and railroad infrastructures. The range is compliant with international railway standards and the wiring time is reduced by up to 80% thanks to the combination of pluggable function and PI-Spring or ADO System® technologies.


Solar Industry  – The ENTRELEC SNK terminal block range is suited for use in the solar industry; offering up to 1500 VDC and their multiple connection’s technologies (PI-Spring, screw and pluggable).



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