Busbar

Used in power distribution busbars are made out of aluminium, brass or copper and they are able to conduct and ground electricity to transmit power from the source of electric power to the load.
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.

Typical places bus bars are found in are:
  • Factories
  • Data Centres
  • Retail Facilities
  • Laboratories
  • Hospitals
  • Universities

Busbars range greatly in size and the size depends on the use. Common commercial and industrial busbars sizes range from 40 Amps to 1200 Amps.

Types
The most common types of busbars in the industry today are:

  • Rigid busbars: These are used in low, medium or high-voltage applications. Made with aluminium rods or copper bars and they make use of porcelain to insulate them.
  • Strain busbars: These are used in high-voltage applications and are strung between the metal structures of a substation. They are held in place by suspension type insulators.
  • Insulated phase busbars: These are used at medium voltage and similar to the rigid busbars, they are rigid bars that are supported by insulators.
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Osan tiedot Merkki Rated Operational Voltage Material Range Number Of Modules Electrical Phase For Use With Series Pitch Current Rating Colour
End cap for pin busbars 4-phase Siemens 400V ac - Sentron - 4 Pin Busbars 5ST - - -
Pin busbar 1PH 10 mm2, 54 MW blue Pin bu Siemens - Copper Sentron - 1 Miniature Circuit Breakers 5ST - 63 A -
Pin busbar 1PH 10 mm2, 54TE blue Pin bus Siemens - Copper Sentron - 1 Miniature Circuit Breakers 5ST - 63 A -
Pin busbar 1PH 10 mm2, 54TE gray, Pin bu Siemens - Copper Sentron - 1 Miniature Circuit Breakers 5ST - 63 A -
Pin busbar 3PH 10 mm2, 12 MW gray, Pin b Siemens - Copper Sentron - 3 Miniature Circuit Breakers 5ST - 63 A -
Pin busbar touch-safe, 10 mm2 2-phase+AU Siemens 400V ac SF-Cu Sentron - 2 Miniature Circuit Breakers 5ST - 63 A -
Pin busbar touch-safe, 10 mm2 2-phase+AU Siemens 400V ac SF-Cu Sentron - 2 Miniature Circuit Breakers 5ST - 63 A -
Pin busbar touch-safe, 10 mm2 2-phase, 1 Siemens - Copper Sentron - 1 Miniature Circuit Breakers 5ST - 63 A -
Pin busbar touch-safe, 10 mm2 2-phase, 2 Siemens - Copper Sentron - 2 Miniature Circuit Breakers 5ST - 63 A -
Pin busbar touch-safe, 10 mm2 3-phase+AU Siemens 400V ac SF-Cu Sentron - 3 Miniature Circuit Breakers 5ST - 63 A -
Pin busbar touch-safe, 16 mm2 3-phase, 3 Siemens - Copper Sentron - 3 Miniature Circuit Breakers 5ST - 80 A -
Pin busbar touch-safe, 16 mm2 3-phase, 4 Siemens - Copper Sentron - 4 Miniature Circuit Breakers 5ST - 80 A -
Pin busbar touch-safe, 16 mm2 4-phase, L Siemens 400V ac - Sentron - 4 Miniature Circuit Breakers 5ST - - -
Pin busbar, 10 mm2 Range with: 20x 5ST36 Siemens - Copper Sentron - - Miniature Circuit Breakers 5ST - 80 A -
Pin busbar, 10 mm2 connection: 2x (1-pha Siemens - Copper Sentron - 1 Miniature Circuit Breakers 5ST - 63 A -
Pin busbar, 10 mm2 connection: 2x (2-pha Siemens - Copper Sentron - 2 Miniature Circuit Breakers 5ST - 63 A -
Pin busbar, 10 mm2 connection: 2x (3-pha Siemens - Copper Sentron - 3 Miniature Circuit Breakers 5ST - 63 A -
Pin busbar, 10 mm2 connection: 2x 4-phas Siemens - Copper Sentron - 4 Miniature Circuit Breakers 5ST - 63 A -
Pin busbar, 10 mm2 connection: 2x3x (1-p Siemens - Copper Sentron - 1 Miniature Circuit Breakers 5ST - 63 A -
Pin busbar, 10 mm2 connection: 3x (2-pha Siemens - Copper Sentron - 2 Miniature Circuit Breakers 5ST - 63 A -
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