Busbar, Lug-Connected and Covered Terminal Blocks
A lug-connected, busbar and covered terminal block is a large-cross-section DIN rail terminal block in which the cable lug is tightened with a bolt and nut onto the copper busbar inside the housing, with the connection points concealed by a cover. It is used in high-current circuits in main distribution, power factor correction and motor control panels to carry incoming and outgoing power cables to the panel's internal connections. In this category, Onka MRK series terminal blocks are listed in cross-sections such as 25 mm², 50 mm², 95 mm², 150 mm² and 240 mm², with rated currents such as 125 A, 232 A and 353 A and a 1000 V rated voltage; housing colors such as beige, gray, blue, red, black and green are available. Choose the terminal block by the cable's cross-section and lug size, the line's current, the housing color for phase and neutral separation, and the mounting width on the rail. Because the connection is made through the cable lug, the lug hole and bolt size must be taken from the manufacturer data. A screw-connection DIN rail terminal block of the same cross-section clamps the conductor in its slot without a lug and does not replace this terminal block where a lugged connection is required.
Products
- Onka MRK 50mm2 Lug-Connection, Busbar, Covered Rail Terminal Block Red — Onka · SKU: 1030036 · TRY 280.90 · Made to order
- Onka MRK 240mm2 Lug-Connection, Busbar, Covered Rail Terminal Block Green — Onka · SKU: 1030123 · TRY 1,342.54 · Made to order
- Onka MRK 25mm2 Lug-Connection, Busbar, Covered Rail Terminal Block Red — Onka · SKU: 1030007 · TRY 234.26 · Made to order
- Onka MRK 35mm2 Lug-Connection, Busbar, Covered Rail Terminal Block Black — Onka · SKU: 1030019 · TRY 256.00 · Made to order
- Onka MRK 120mm2 Lug-Connection, Busbar, Covered DIN Rail Terminal Block Blue — Onka · SKU: 1030076 · TRY 790.76 · Made to order
- Onka MRK 50mm2 Lug-Connection, Busbar, Covered Rail Terminal Block Beige — Onka · SKU: 1030032 · TRY 280.90 · Made to order
- Onka MRK 185mm2 Lug-Connection, Busbar, Covered Rail Terminal Block Yellow — Onka · SKU: 1030108 · TRY 1,060.07 · Made to order
- Onka MRK 50mm2 Lug-Connection, Busbar, Covered Rail Terminal Block Brown — Onka · SKU: 1030035 · TRY 280.90 · Made to order
- Onka MRK 70mm2 Lug-Connection, Busbar, Covered Rail Terminal Block Beige — Onka · SKU: 1030046 · TRY 399.88 · Made to order
- Onka MRK 185mm2 Lug-Connection, Busbar, Covered Rail Terminal Block Green — Onka · SKU: 1030109 · TRY 1,060.07 · Made to order
- Onka MRK 25mm2 Lug-Connection, Busbar, Covered DIN Rail Terminal Block Blue — Onka · SKU: 1030005 · TRY 234.26 · Made to order
- Onka MRK 25mm2 Lug-Connection, Busbar, Covered Rail Terminal Block Black — Onka · SKU: 1030004 · TRY 234.26 · Made to order
- Onka MRK 185mm2 Lug-Connection, Busbar, Covered Rail Terminal Block Black — Onka · SKU: 1030104 · TRY 1,060.07 · Made to order
- Onka MRK 35mm2 Lug-Connection, Busbar, Covered Rail Terminal Block Red — Onka · SKU: 1030022 · TRY 256.00 · Made to order
- Onka MRK 120mm2 Lug-Connection, Busbar, Covered Rail Terminal Block Red — Onka · SKU: 1030078 · TRY 790.76 · Made to order
- Onka MRK 70mm2 Lug-Connection, Busbar, Covered Rail Terminal Block Green — Onka · SKU: 1030052 · TRY 399.88 · Made to order
- Onka MRK 35mm2 Lug-Connection, Busbar, Covered Rail Terminal Block Gray — Onka · SKU: 1030017 · TRY 256.00 · Made to order
- Onka MRK 240mm2 Lug-Connection, Busbar, Covered Rail Terminal Block Beige — Onka · SKU: 1030117 · TRY 1,342.54 · Made to order
- Onka MRK 50mm2 Lug-Connection, Busbar, Covered Rail Terminal Block Yellow — Onka · SKU: 1030037 · TRY 280.90 · Made to order
- Onka MRK 150mm2 Lug-Connection, Busbar, Covered Rail Terminal Block Yellow — Onka · SKU: 1030094 · TRY 900.12 · Made to order
- Onka MRK 185mm2 Lug-Connection, Busbar, Covered Rail Terminal Block Brown — Onka · SKU: 1030106 · TRY 1,060.07 · Made to order
- Onka MRK 25mm2 Lug-Connection, Busbar, Covered Rail Terminal Block Yellow — Onka · SKU: 1030008 · TRY 234.26 · Made to order
- Onka MRK 70mm2 Lug-Connection, Busbar, Covered Rail Terminal Block Brown — Onka · SKU: 1030049 · TRY 399.88 · Made to order
- Onka MRK 120mm2 Lug-Connection, Busbar, Covered Rail Terminal Block Yellow — Onka · SKU: 1030079 · TRY 790.76 · Made to order
- Onka MRK 70mm2 Lug-Connection, Busbar, Covered DIN Rail Terminal Block Blue — Onka · SKU: 1030048 · TRY 399.88 · Made to order
How to choose Busbar, Lug-Connected and Covered Terminal Blocks
A lug-connected, busbar and covered terminal block is a large-cross-section DIN rail terminal block in which the cable lug is tightened with a bolt and nut onto the copper busbar inside the housing, with the connection points concealed by a cover. It is used in high-current circuits in main distribution, power factor correction and motor control panels to carry incoming and outgoing power cables to the panel's internal connections.
- 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 Busbar, Lug-Connected and Covered Terminal Blocks and where is it used?
A lug-connected, busbar and covered terminal block is a large-cross-section DIN rail terminal block in which the cable lug is tightened with a bolt and nut onto the copper busbar inside the housing, with the connection points concealed by a cover. It is used in high-current circuits in main distribution, power factor correction and motor control panels to carry incoming and outgoing power cables to the panel's internal connections.
What should I compare when choosing Busbar, Lug-Connected and Covered Terminal Blocks?
Choose the terminal block by the cable's cross-section and lug size, the line's current, the housing color for phase and neutral separation, and the mounting width on the rail.
Where can I find technical details for Busbar, Lug-Connected and Covered Terminal Blocks products?
A screw-connection DIN rail terminal block of the same cross-section clamps the conductor in its slot without a lug and does not replace this terminal block where a lugged con