Expansion units are used to accommodate the expansion and contraction of a busduct system as well as allow for building movement. They allow for a 1.57” movement along the length of the busduct.

Expansion units are recommended when a straight busduct run exceeds 196ft.

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Item #

Construction Type

Configuration

Busbar Rating

Busbar Height

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UL-P-EXP-1000-TP N/A Single N/A TP N/A 1000 A N/A 4.25 in108 mm
UL-P-EXP-1200-TP N/A Single N/A TP N/A 1200 A N/A 4.65 in118 mm
UL-P-EXP-1350-TP N/A Single N/A TP N/A 1350 A N/A 5.24 in133 mm
UL-P-EXP-1600-TP N/A Single N/A TP N/A 1600 A N/A 6.22 in158 mm
UL-P-EXP-2000-TP N/A Single N/A TP N/A 2000 A N/A 7.8 in198 mm
UL-P-EXP-2500-TP N/A Single N/A TP N/A 2500 A N/A 9.76 in248 mm
UL-P-EXP-3000-TP N/A Double N/A TP N/A 3000 A N/A 13.43 in341 mm
UL-P-EXP-3200-TP N/A Double N/A TP N/A 3200 A N/A 14.21 in361 mm
UL-P-EXP-4000-TP N/A Triple N/A TP N/A 4000 A N/A 19.45 in494 mm
UL-P-EXP-5000-TP N/A Triple N/A TP N/A 5000 A N/A 23.58 in599 mm
UL-P-EXP-5000-TPDN N/A Triple N/A TPDN N/A 5000 A N/A 23.58 in599 mm
UL-P-EXP-4000-TPDN N/A Triple N/A TPDN N/A 4000 A N/A 19.45 in494 mm
UL-P-EXP-3200-TPDN N/A Double N/A TPDN N/A 3200 A N/A 14.21 in361 mm
UL-P-EXP-3000-TPDN N/A Double N/A TPDN N/A 3000 A N/A 13.43 in341 mm
UL-P-EXP-2500-TPDN N/A Single N/A TPDN N/A 2500 A N/A 9.76 in248 mm
UL-P-EXP-2000-TPDN N/A Single N/A TPDN N/A 2000 A N/A 7.8 in198 mm
UL-P-EXP-1600-TPDN N/A Single N/A TPDN N/A 1600 A N/A 6.22 in158 mm
UL-P-EXP-1350-TPDN N/A Single N/A TPDN N/A 1350 A N/A 5.24 in133 mm
UL-P-EXP-1200-TPDN N/A Single N/A TPDN N/A 1200 A N/A 4.65 in118 mm
UL-P-EXP-1000-TPDN N/A Single N/A TPDN N/A 1000 A N/A 4.25 in108 mm
UL-P-EXP-1000-TPDNE N/A Single N/A TPDNE N/A 1000 A N/A 4.25 in108 mm
UL-P-EXP-1200-TPDNE N/A Single N/A TPDNE N/A 1200 A N/A 4.65 in118 mm
UL-P-EXP-1350-TPDNE N/A Single N/A TPDNE N/A 1350 A N/A 5.24 in133 mm
UL-P-EXP-1600-TPDNE N/A Single N/A TPDNE N/A 1600 A N/A 6.22 in158 mm
UL-P-EXP-2000-TPDNE N/A Single N/A TPDNE N/A 2000 A N/A 7.8 in198 mm
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