LV Metal Encapsulated Busbar

The demand for the economical and efficient distribution of electric power for business and industrial applications continues to grow. Our Bus Duct has a very compact design and uses an effective heat-radiating aluminium housing profile, sandwich construction which allows for easier installation and maintenance, the casing also acts as an earth and is available with a choice of ingress protection ratings from IP55 to IP67.

Our Bus Duct can carry from 160A up to 7500A with reduced loss. It is ideal for both high-rise buildings and industrial applications. The simplified design of the Bus Duct system allows for easy routing, extension, relocation, replacement and maintenance of power loads.

Because of the extremely low impedance, the resultant voltage drop is also low.

The effective design allows power to be delivered with the greatest possible efficiency and our Bus Duct also has a very high short-circuit with stand strength.

We also offer an optional intelligent temperature monitoring system where an optical fibre cable is attached to the housing and is used to measure real time temperature conditions.

Product Features
Technical Data
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Product Features

  • Wide current range from 160A to 7500A with reduced losses.
  • Rated up to 1000V service capacity.
  • Standard IP54 rating, and can be upgraded to IP65 for service in adverse conditions.
  • Low voltage products meet the standard of IEC 60439-1, IEC 60439-2, UL 857.
  • The purity of conductor is 99.9% for copper with conductivity above 98% IACS.
  • Small external dimension, Compact and easy to install
  • The aluminium housing makes the system lighter than other
  • high short-circuit current withstand
  • Low voltage drop and power consumption
  • High mechanical strength
  • ClassB (130oC) Insulation is applied to the conductor

Technical Data

Impedance and Voltage Drop

The impedance and voltage drop values for aluminum and copper conductors are shown in the tables below.
The values listed are measured between line and neutral phases at 60 Hz. For a 50 Hz installation, multiply the reactance (X) by 0.83.
The resistance (R) remains unchanged due to the negligible difference in frequency.
Calculate voltage drop of line to line as following equation. cos is power factor.
Voltage Drop (Vd) = rated load amperes x 3 (R cos + X sin )

Aluminum Bus Bar

 Impedance x 10 -3 /100m, 60 HzVoltage Drop(/100m)
AMP RatingRXZ030405060708091
630139840714568821017114812711385148715661525
8007972628396777748669531032110111521104
100068322171872182582410171102117712321184
1250240080253641732818900974103910851040
1600382123402647736825909985105211021060
2000308100324652746835919996106311121067
2500240080253641732818900905103910861040
3200191061200641734822905982104810981056
3600172055181652746836921999106711181074
4000154050162650743832916993106011101064
50001150371216036907748529249871034994
6000102033108649743832915992105811081063
TABLE 31-1

Copper Bus Bar

 Impedance x 10 -3 /100m, 60 HzVoltage Drop(/100m)
AMP RatingRXZ030405060708091
630749407853669734794846890921930818
80074938484282090498010491107115011671038
1000549299625779855924985103510721082952
1250439245503790866934994104410781086950
1600310171354709777839894940972980860
2000240135276696761821873917946953832
2500186105213673737795845887916922806
3200154085176705773835889934966975855
3600135074154694761822875920951960842
4000120067137693758818870913942949829
5000093052106671735792843884913919803
6000080045091692757817869911941948823
7500062035071671734791842883912918802
TABLE 31-2

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