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Expansion units are used to accommodate the expansion and contraction of a busbar system as well as allow for building movement. They allow for a 40mm movement along the length of the busbar.
Expansion units are recommended when a straight busbar run exceeds 60m. They are installed in the centre of long busbar runs, or at the beginning of riser runs to minimise the stress on the lower section of the busbar run.
Type |
N/A Expansion Unit |
Construction Type |
N/A Single |
Application |
N/A Indoor |
Material |
N/A Painted copper |
Series |
N/A HPB – UAE – SEWA |
Mounting Type |
N/A Edge Installation |
Configuration |
N/A TPNHE |
Industry Standards |
N/A SEWA |
Certification Marks |
N/A UAE |
Conductor Material |
N/A Copper |
Ambient Temperature [Max] |
N/A 55 ºC131 ºF |
Ambient Temperature [Min] |
N/A -5 ºC-22 ºF |
Number of Poles |
N/A 4.5 |
Busbar Rating |
N/A 1600 A |
Frequency |
N/A 50/60 Hz |
Conductor |
N/A 140 |
Rated Operational Voltage |
N/A 1000 V |
Rated Insulation Voltage |
N/A 1000 V |
Phase Conductor - Cross Sectional Area |
N/A 540 mm² |
Neutral Conductor - Cross Sectional Area |
N/A 540 mm² |
Short Circuit Rating [1 sec] |
N/A 70 kA rms |
Short Circuit Peak Value |
N/A 154 kA |
Isolated Earth Conductor - 100% Earth Cross Sectional Area |
N/A 540 mm² |
Isolated Earth Conductor - 50% Earth Cross Sectional Area |
N/A 270 mm² |
Housing Earth Path - Cross Sectional Area |
N/A 1229 mm² |
Resistance at 20°C |
N/A 0.033 mΩ/m |
Resistance at 80°C |
N/A 0.041 mΩ/m |
Reactance at 50Hz |
N/A 0.016 mΩ/m |
Reactance at 60Hz |
N/A 0.013 mΩ/m |
Impedance at 80°C |
N/A 0.043 mΩ/m |
Busbar Width |
N/A 148 mm |
Busbar Height |
N/A 198 mm |
Height |
N/A 240 mm |
Width |
N/A 227.50 mm |
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Please contact Vertiv Partner Support: salescloudsupport@vertivco.com