Screw Connection Terminal Blocks

A screw-connection terminal block, also known as a screw DIN rail terminal block, is a DIN rail panel connection element that secures the conductor with screw clamping force. It is used in control and distribution panels to connect solid, stranded and ferrule-terminated conductors, from small control cross-sections to large power cross-sections. In this category, alongside Onka MRK series single-level terminal blocks, there are the two-level MRK-Ç, three-level MRK-3K, motor terminal block MRK-MT, and tall and ferruleless models; cross-sections such as 1.5 mm², 2.5 mm², 4 mm², 10 mm², 35 mm² and 120 mm² are listed with 750 V and 1000 V rated voltages. Choose the cross-section by the conductor, the rated current by the circuit current, the level count by the space you need on the rail, the rated voltage by the circuit voltage and the housing color by phase, neutral and control separation. Two- and three-level types offer more connection points on the same rail length. A screw-connection terminal block should not be confused with a lug-connected terminal block, where the cable lug is tightened with a bolt; for lugged power cables, see the Busbar, Lug-Connected and Covered Terminal Blocks category.

Products

How to choose Screw Connection Terminal Blocks

A screw-connection terminal block, also known as a screw DIN rail terminal block, is a DIN rail panel connection element that secures the conductor with screw clamping force. It is used in control and distribution panels to connect solid, stranded and ferrule-terminated conductors, from small control cross-sections to large power cross-sections.

  • Clarify whether the task is connection, cable routing, enclosure distribution or termination.
  • Match dimensions, thread standard, conductor cross-section and IP rating with the cable and panel.
  • Choose housing material and pack quantity according to the mounting environment.

Frequently asked questions

What is Screw Connection Terminal Blocks and where is it used?

A screw-connection terminal block, also known as a screw DIN rail terminal block, is a DIN rail panel connection element that secures the conductor with screw clamping force. It is used in control and distribution panels to connect solid, stranded and ferrule-terminated conductors, from small control cross-sections to large power cross-sections.

What should I compare when choosing Screw Connection Terminal Blocks?

Choose the cross-section by the conductor, the rated current by the circuit current, the level count by the space you need on the rail, the rated voltage by the circuit voltage and the housing color by phase, neutral and control separation.

Where can I find technical details for Screw Connection Terminal Blocks products?

A screw-connection terminal block should not be confused with a lug-connected terminal block, where the cable lug is tightened with a bolt; for lugged power cables, see the Busbar, Lug-Connected and Covered Terminal Blo

Screw Connection Terminal Blocks Selection Guide: Technical Criteria and Engineering Practice