Busbars and Distribution Blocks

A distribution busbar and distribution block is a connection element that shares a single supply across several outputs in a panel or collects conductors at the same potential at one point. It is used to feed side-by-side MCBs with a single part, distribute phases and neutral from the main switch to the feeders, and collect neutral and protective conductors on separate busbars. In this category, Onka covered distribution units (distribution busbars) are offered in types such as 2-, 3- and 4-pole and 12-, 15- and 22-hole, at currents such as 80 A, 160 A and 250 A. Gwest and Konsan single-phase and three-phase common W-type MCB busbars, Konsan screw-type neutral and grounding busbars, Gwest rail-mounted distribution blocks and Schneider Electric Acti 9 comb busbars are also available. Choose the rated current by the current of the switch feeding the busbar, the pole count by the number of phases and neutrals to be distributed, the hole count by the number of feeders and the hole size by the conductor cross-section; for an MCB busbar, determine the phase type and length by the MCB row. A comb-type MCB busbar only bridges MCBs on the same rail and does not replace the panel's main busbar.

Products

Siemens 8US1922-2AA00 Busbar System Equipment Busbar cover for 40 mm and 60 mm busbar systems — Siemens · SKU: 8US1922-2AA00 · TRY 3,482.00 · Made to order
Gwest GW - 80A Single-Pole Distribution Unit — Gwest · SKU: 3708 · TRY 130.20 · In stock
Siemens 8US1250-1AA10 Busbar System Equipment (for 40mm busbar systems) Size S2 Width:55mm Length:200mm — Siemens · SKU: 8US1250-1AA10 · TRY 5,147.00 · Made to order
Siemens 8US1922-1AC00 Busbar System Equipment 1 Busbar terminator for 60 mm busbar systems — Siemens · SKU: 8US1922-1AC00 · TRY 1,102.00 · Made to order
Siemens 8US1921-1AA00 Busbar System Equipment 5 Power feed unit (with cover) for 60 mm busbar systems — Siemens · SKU: 8US1921-1AA00 · TRY 9,156.00 · Made to order
Gwest GW - 4x15 4-Pole Distribution Unit — Gwest · SKU: 3706 · TRY 525.00 · In stock
Gwest GW - 500A Single-Pole Distribution Unit — Gwest · SKU: 3713 · TRY 903.00 · In stock
Gwest GW - 2x15 2-Pole Distribution Unit — Gwest · SKU: 3703 · TRY 285.60 · In stock
Siemens 8US1251-5NS10 Busbar System Equipment Busbar adapters Size S00/S0 Width:45mm Length:200mm — Siemens · SKU: 8US1251-5NS10 · TRY 5,705.00 · Made to order
Gwest KAP Single-Phase Busbar Cover — Gwest · SKU: 3627 · TRY 4.20 · In stock
Siemens 8US1251-5DT10 Busbar System Equipment Size S00 Width:45mm Length:260mm — Siemens · SKU: 8US1251-5DT10 · TRY 5,620.00 · Made to order
Gwest KAP Three-Phase Busbar Cover — Gwest · SKU: 3628 · TRY 4.20 · In stock
Gwest GW - 4x7 4-Pole Distribution Unit — Gwest · SKU: 3704 · TRY 285.60 · In stock
Siemens 8US1250-5AM00 Busbar System Equipment (for 60mm busbar systems) Size S00/S0 Width:45mm Length:182mm — Siemens · SKU: 8US1250-5AM00 · TRY 4,873.00 · Made to order
Siemens 8US1922-2EB00 Busbar System Equipment Complete busbar cover for 60 mm busbar systems — Siemens · SKU: 8US1922-2EB00 · TRY 6,989.00 · Made to order
Gwest GW-SB250 Distribution Unit with SKP Connection — Gwest · SKU: 3714 · TRY 2,184.00 · In stock
Gwest GW - 125A Single-Pole Distribution Unit — Gwest · SKU: 3709 · TRY 268.80 · In stock
Siemens 8US1941-2AC00 Busbar System Equipment for 10 mm busbar thickness up to 240 mm2 cross-section cable — Siemens · SKU: 8US1941-2AC00 · TRY 3,557.00 · Made to order
Siemens 8US1251-5DM07 Busbar System Equipment Size S00/S0 Width:45mm Length:182mm — Siemens · SKU: 8US1251-5DM07 · TRY 6,265.00 · Made to order
Gwest GW - 4x12/160A 4-Pole Distribution Unit — Gwest · SKU: 3707 · TRY 1,302.00 · In stock
Gwest GW-SB400 Distribution Unit with SKP Connection — Gwest · SKU: 3715 · TRY 3,150.00 · In stock
Siemens 8US1903-3AB00 Busbar System Equipment 2 Busbar holder for 40 mm busbar systems — Siemens · SKU: 8US1903-3AB00 · TRY 5,444.00 · Made to order
Siemens 8US1921-2AB00 Busbar System Equipment 4-35 mm2 — Siemens · SKU: 8US1921-2AB00 · TRY 435.00 · Made to order
Gwest GW - 400A Single-Pole Distribution Unit — Gwest · SKU: 3712 · TRY 840.00 · In stock
Siemens 8US1261-6MT10 Busbar System Equipment (for 40mm busbar systems) Size S2 Width:54mm Length:260mm — Siemens · SKU: 8US1261-6MT10 · TRY 7,747.00 · Made to order

How to choose Busbars and Distribution Blocks

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 Busbars and Distribution Blocks and where is it used?

What should I compare when choosing Busbars and Distribution Blocks?

Choose the rated current by the current of the switch feeding the busbar, the pole count by the number of phases and neutrals to be distributed, the hole count by the number of feeders and the hole size by the conductor cross-section; for an MCB busbar, determine the phase type and length by the MCB row.

Where can I find technical details for Busbars and Distribution Blocks products?

A comb-type MCB busbar only bridges MCBs on the same rail and does not replace the panel's main busb

Busbars and Distribution Blocks Selection Guide: Technical Criteria and Engineering Practice