Bus bars

busbars_980x190_crop_478b24840a Back to Extruded

Copper bus bars are used in a number of electrical applications, such as: in the production of switchboards, transformers, socket panels. 

Bus bars Propertiesimage

General Specifications

Copper flats' chemical, physical and mechanical properties, tolerances and/or limitations comply to variety of standards, as for example EN 13601, JIS H 3250/JIS H 3140, ASTM B 187. Their production is monitored throughout all stages with the application of management system certified by Lloyds Register as complying with the requirements of standards ISO 9001:2008.

 

Physical Properties of pure Copper

Density (g/cc) 8,96  
Thermal Conductivity (W/cm oK) 4,01
Specific Heat (J/g oK) 0,38
Coefficient of linear thermal expansion / K-1 16,5E-6
Atomic Mass Average 63,546
Melting Point 1357,75 oK
1084,6 oC
1984,3 oF

 

Mechanical Properties

According to EN 13601

Alloy Temper

Tensile Strength

(MPa)

Yield Strength

(MPa)

Elongation

 (%)

Hardness

(HB)

Conductivity

(MS/m)

Cu-ETP D (Hard as drawn) - - - - 56 min
H035 - - - 35 -65 58 min
R200 200 min 120 max 25 min - 58 min
H065

-

- - 65 -90 58 min
R230 230 min 160 min - - 58 min
R250 250 min 200 min 8 min - 58 min
H085 - - - 85 -110 57 min
R300 300 min 260 min 5 min - 57 min
H100 - - - 100 min 57 min

 

According to ASTM B 187

Alloy Temper

Rod & Bar Strength

(mm)

Elongation

(%)

Hardness

(HV)

Conductivity

(MS/m)

Cu-ETP O60 All sizes 25 min 57 max 58 min

H04

 

For rod: Up to 10 incl.

12 min - 56 min
Over 10 to 25 incl. 12 min 89 min 56 min
Over 25 to 50 incl. 15 min 83 min 56 min
Over 50 to 75 incl. 15 min 71 min 57 min
Over 75 15 min - -

For bar: Up to 10 incl. thickness and up to 110 incl. in width

10 min 89 min 56 min
All other sizes 15 min 71 min 57 min

 

According to JIS H 3250

Alloy Temper

Rod & Bar Strength

(mm)

Tensile Strength

(MPa)

Elongation

(%)

Conductivity

(MS/m)

Cu-ETP O 6 or over up to and incl. 10 195 min 30 min 58 min
½ H 6 or over up to and incl. 25 245 min 15 min 57 min
over 25 up to and incl. 50 225 min 20 min 57 min
over 50 up to and incl. 75 215 min 25 min 57 min
H 6 or over up to and incl. 25 275 min - 56 min

 

According to JIS H 3140

Alloy Temper

Rod & Bar Strength

(mm)

Tensile Strength

(MPa)

Elongation

(%)

Conductivity

(MS/m)

Cu-ETP O 2.0 or over up to and incl. 30 195 min 35 min 58 min
½ H 2.0 or over up to and incl. 30 215-275 25 min 57 min
¼ H 2.0 or over up to and incl. 20 245-315 15 min 57 min
H 2.0 or over up to and incl. 10 275 min - 56 min

 

Bus bars Characteristicsimage

In straight lengths

Bus bars, with sharp, round or full radius edges, in standard straight lengths
from 3.000 to 5.000 mm and tempers R200, R230, R250, R260, R280 and R300.

Thickness (mm)** 2 3 4 5 6 8 10 12 15 20
Minimum width (mm) 10 10 10 10 10 10 15 20 20 25
Maximum width (mm) 30 50 60 100 120 140 200 200 200 250
Packing On pallets and or wooden cases of about 500 kg.

Available in imperial sizes and other lengths upon agreement.
** Maximum thickness could be 50mm with restrictions with respect to width.


In coils

Bus bars, with sharp, round or full radius edges.

Temper Thickness (mm) Width (mm) Packing
Soft 3 ÷ 8 20 ÷ 40 In coils on wooden
pallets
Half-hard
Hard
COD: max. 1400 mm
CID: 500 mm

Available in imperial sizes.

BUS BARS FOR SWITCHBOARDS

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