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Busbars

Busbars or bus bars are essential metallic strips or bars widely used in electrical power distribution systems. They are conductive bars or strips made of materials like copper or aluminium and feature various connection points for cable or conductor attachments. A bus bar is a central point for collecting power from multiple sources, such as generators or transformers, and distributing it to various loads like motors, equipment, and other devices. As grounding substances, these bars also serve to connect multiple batteries and DC equipment and are commonly found in electrical switchgear, distribution panels, substations, and industrial facilities. Additionally, bus bars come in varied shapes, sizes, designs, and current ratings to meet different requirements in various domains.

Key Features and Benefits of Busbars

Using bus bars provides multiple benefits and special features, such as:

  • Rugged Materials for Excellent Conductivity: Busbars are made from highly electrically conductive materials, ensuring minimal resistance to the current flow and reducing energy losses and heat generation.
  • Connection Points: Busbars have in-built connection points equipped with connectors, clamps, or lugs.
  • Easy Installation and Maintenance: Installing busbars is generally easier and quicker than routing individual cables, leading to reduced labour costs and shorter downtime.
  • Enhanced Electrical Safety: Bus bars are typically enclosed within protective housing, contributing to improved electrical safety.
  • Low Impedance: Busbars are designed with low impedance to minimise voltage drops and power losses as the current flows through them.
  • Mechanical Strength: Bus bars are mechanically robust, supporting their weight and handling potential mechanical stresses due to short-circuit currents.
  • Robust Flexibility: Busbars are available in various shapes and configurations to suit different applications. Common shapes include flat bus bars, rectangular bus bars, and tubular bus bars.
  • High Current Carrying Capacity: These bars can handle high current levels, making them suitable for applications that require substantial power distribution.

Popular Types of Busbars

Busbars come in various types, each designed for specific applications based on factors like current capacity, voltage levels, materials used, and environmental conditions. Some popular busbar types include:

  • Solid Busbars – These are simple and standard bars used for low to medium-current applications, such as within switchgear, distribution panels, and small substations.
  • Comb Busbars – These bars are among the most basic types found in small distribution boards and switchgear panels. A comb busbar is beneficial in reducing the number of wiring connections.
  • Flexible Busbars – As the name implies, flexible bus bars are crafted from thin copper strips, allowing robust flexibility. Due to their flexible designs, they suit environments requiring movement or vibrations. 
  • Copper Busbars – These types suit high-current applications due to their excellent electrical conductivity. A copper busbar is typically found inside industrial switchgear, control panels, busway enclosures, and larger panel boards. 
  • Aluminium Busbars – These bus bars are lightweight, cost-effective, and mostly used in applications requiring lightweights.
  • Insulated Busbars – An insulated busbar is covered with insulated materials designed to protect accidental contacts with live wires in panel boards and switchgear. Insulation materials include PVC or epoxy.

Typical Applications of Busbars

Bus bars are widely used for transmitting and distributing electrical power within various commercial, residential, and industrial applications. Some of the typical bus bar applications include:

  • Power Distribution Systems
  • Switchgear & Substations
  • Renewable Energy Systems
  • Electric Vehicles (EVs)
  • Data Centers
  • Retail services
  • Datapoints
  • Digital laboratories 
  • Hospitals
  • Power Converters & Inverters
  • Uninterruptible Power Supplies (UPS).

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3RV2925-5EB, Siemens
15 In Stock
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3RA2942-1AA00, Siemens
1 In Stock
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£ 19.42
Schneider Electric
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LA7F403, Schneider Electric
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£ 77.64
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1SAM201916R1103 PS1-3-0-100, ABB
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£ 17.51
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094.56, Finder
30 In Stock
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£ 3.50
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5ST3765, Siemens
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£ 24.48
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GV2G554, Schneider Electric
6 In Stock
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£ 44.63
Legrand
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4 049 38, Legrand
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£ 21.12
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A9XAH357, Schneider Electric
169 In Stock
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£ 92.73
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A9XPN612, Schneider Electric
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£ 23.82
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8US1251-5DM07, Siemens
16 In Stock
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£ 32.07
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8GK4801-2KK23, Siemens
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£ 159.98
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A9XPA648, Schneider Electric
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£ 157.49
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A9XPN748, Schneider Electric
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£ 109.05
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A9XPV748, Schneider Electric
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£ 166.82
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2CDL210001R3019 PS 1/19/30, ABB
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£ 14.41
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2CDL220001R1658 PS2/58/16, ABB
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£ 64.40
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2CDL220001R3058 PS 2/58/30, ABB
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£ 113.30
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2CDL230001R1012 PS3/12, ABB
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2CSL910011R1012 BS9 1/12 NA -, ABB
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£ 6.89
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790-191, WAGO
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£ 4.53
113135 Z-SV-35/1P, Eaton
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£ 31.80
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119034 CU-BAND10X24X1-BK, Eaton
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£ 1273.99
107210 BBS-3/FL-185, Eaton
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£ 47.36
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303366 EVG-3PHAS/N/6MODUL/LS, Eaton
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£ 9.78
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New Items
New items
140U-D-W453, Rockwell Automation

140U-D-W453, Rockwell Automation

The Rockwell Automation compact bus bar has 64 A current rating. It is designed for used with 140U D circuit breaker. 3 Connections
New items
140U-D-W454, Rockwell Automation

140U-D-W454, Rockwell Automation

The Rockwell Automation compact bus bar has 64 A current rating. Designed for used with 140U D circuit breaker
New items
5ST3703, Siemens

5ST3703, Siemens

The Siemens SENTRON series pin Busbar with cross section 16 mm². The Busbar is 1-phase and has AUX 1016 mm long which can be cut, without end caps. Rated current 63A Busbar is insulated Pin type electrical connection
New items
PYDN-6.2-040S, Omron

PYDN-6.2-040S, Omron

Omron G2RV-SR/G3RV-SR Relay Cross Bars Omron range of short plug in bars for use with G2RV-SR and G3RV-SR relays. The PYDN short bars allow simplified wiring in panel designs. Taking advantage of a unified relay socket height of 90 mm enables sharing short bars across multiple contacts. Available in 3 colour options 6.2 mm pitch Maximum energising current: 32 A
New items
5ST3712-0HG, Siemens

5ST3712-0HG, Siemens

The Siemens SENTRON series 3-phase busbar has pin-type electrical version. It has width of 21mm and length of 1000mm. Touch-safe
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5ST3630, Siemens

5ST3630, Siemens

The Siemens SENTRON series pin Busbar with cross section 16 mm². The Busbar is 2x 1-phase touch safe product. It has pin type electrical connection. Rated current 80A Busbar is insulated
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GV2G272, Schneider Electric

GV2G272, Schneider Electric

This Schneider Electric TeSys GV busbar set, 3 phases, 63A/690V, for the upstream parallel wiring of groups of motor starters composed of GV2 motor circuit breakers or LS1D32 fuse carriers. For use with screw clamp terminal devices, it is composed of 2 tap-off outlets for the paralleling of 2 devices with a pitch of 72mm. The use of a terminal block GV1G09 or GV2G05 is recommended to supply the busbar sets (to be ordered separately). Green Premium compliant (RoHS/REACh). Mercury free
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5ST3742, Siemens

5ST3742, Siemens

The Siemens Sentron Pin Busbars can come in a various shapes and size, which affect the ampacity of the product. Ampacity refers to the maximum amount of electric current a conductor can carry before showing signs of deterioration. protection class IP20
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1492-AAT1S, Rockwell Automation

1492-AAT1S, Rockwell Automation

The Rockwell Automation 1492 -SP series 35mm² terminal power feed, offset lug for used with two and three phase bus bar. RoHS compliant CE marked
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PN-D167955, Allen Bradley

PN-D167955, Allen Bradley

The Rockwell Automation 1492 -SP series 35mm² terminal power feed, offset lug for used with two and three phase bus bar. RoHS compliant CE marked
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LV432623, Schneider Electric

LV432623, Schneider Electric

The Schneider Electric LA9Z series is a Adaptors for busbar systems with one ways and 60mm of busbar pitch. Consist three pole
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8GK9731-0KK50, Siemens

8GK9731-0KK50, Siemens

The Siemens ALPHA DIN 5 mm thick copper bus bar is 12 mm wide and 1241 mm long. 250 A rated operational current
FAQs
We offer free shipping for orders over £200 if delivery is in the UK. All other orders in the UK, shipping from £7.99 depending on the weight and measurement. Mainland Europe shipping charges start from £25. For all other countries shipping charges start from £50 for products like Busbars and all others.
You can email us directly at sales@enrgtech.co.uk or via our website for any queries regarding Busbars or any other product.
This depends on the Busbars individual product and information that can be found on our website.
Yes, we offer special discounts on orders above £200 for Busbars and all other products.
UK orders normally take between 2/3 working days. International orders normally take between 3/5 working days for all products including Busbars.
Yes. We keep updating our stock frequently and if a product like Busbars is not in stock then we will let you know.