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LoginExpansion 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 Aluminium |
Series |
N/A HPB UL |
Mounting Type |
N/A Edge Installation |
Configuration |
N/A TPDNE |
Industry Standards |
N/A UL |
Certification Marks |
N/A UL857 |
Conductor Material |
N/A Aluminium |
Ambient Temperature [Max] |
N/A 55 ºC131 ºF |
Number of Poles |
N/A 6 |
Busbar Rating |
N/A 1350 A |
Frequency |
N/A 50/60 Hz |
Degree of Protection |
N/A IP55 (up to IP67 upon request) |
Conductor |
N/A 115 |
Rated Operational Voltage |
N/A 1000 V |
Rated Insulation Voltage |
N/A 1000 V |
Short Circuit Rating [6 Cycle] |
N/A 100 kA |
Phase Conductor - Cross Sectional Area |
N/A 1.07 in²690 mm² |
Neutral Conductor - Cross Sectional Area |
N/A 1.07 in²690 mm² |
Isolated Earth Conductor - 100% Earth Cross Sectional Area |
N/A 690 mm²1.07 in² |
Isolated Earth Conductor - 50% Earth Cross Sectional Area |
N/A 345 mm²0.53 in² |
Housing Ground Path Cross Sectional Area |
N/A 2210 mm²3.44 in² |
Resistance at 68°F |
N/A 1.245 mΩ/100·ft |
Resistance at 176°F |
N/A 1.562 mΩ/100·ft |
Reactance at 60Hz |
N/A 0.278 mΩ/100·ft |
Impedance at 176°F |
N/A 1.285 mΩ/100·ft |
Total Length |
N/A 118.11 in1295 mm |
Busbar Width |
N/A 5.83 in148 mm |
Busbar Height |
N/A 6.81 in173 mm |
Height |
N/A 264.8 mm |
Width |
N/A 505 mm |
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