Speedfax 2017

Sentron Busway Systems
Expansion Fittings
Revised on 06/30/18
Selection
15
BUSWAY SYSTEMS
Expansion Fittings, Dimensions (standard/min.)
Dimensions Inches (mm)
Ampere Rating
“A”
AL L-Rated
225 — 13 (330)
400 — 13 (330)
600 — 13 (330)
800 400 13 (330)
1000 600 13 (330)
1200 800 18 (457)
1350 1000 18 (457)
1600 1200 18 (457)
2000 1350,1600 18 (457)
2500 2000 23 (584)
3000 2500 23 (584)
3200 2000 25 (635)
4000 3000,3200 25 (635)
CU M-Rated
225 — 13 (330)
400 — 13 (330)
600 — 13 (330)
800 400 13 (330)
1000 — 13 (330)
1200 600 13 (330)
1350 800 13 (330)
1600 1000 18 (457)
2000 1200,1350 18 (457)
— 1600 18 (457)
2500 2000 18 (457)
3000 — 23 (584)
3200 — 23 (584)
4000 2500,3000,3200 23 (584)
5000 4000 25 (635)
Expansion Fittings
Expansion fittings accommodate for expansion and contraction of a
busway run and building movement. Expansion fittings typically are
installed in the center of long busway runs, and at the beginning of
riser runs (within the first 20ft of vertical busway when total vertical
run length is equal to or greater then 40ft) to minimize stress on the
lower most device or where a busway run crosses an expansion joint
of a building.
Qty (1) Expansion Section should be used for every 200ft of
continuous Busway run length, at every transition to a vertical run, and
at each building expansion joint. The Busway run must be positioned
accordingly to accommodate the Expansion Section(s).
Expansion Fitting
Suffix XPFT
Flush Mount Expansion Fitting
Often useful in riser application, flush mount expansion fittings allow
for the busway to be positioned closer to building walls (reference
page 15-36 for minimum required clearances). The flush mount design
shifts the centerline of the busway up or down by 5 in. on the 20 in.
height axis shown above.
a 24.0" (610mm) for isolated ground.
15-22
Siemens Industry, Inc. SPEEDFAX Product Catalog