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AIS® 3000 10-30kVA, 208V, Site Preparation and Installation Manual – 990-1957 11
Site Preparation (UPS and XR)
Installation Space Requirements
Clearance for 20.59in/523mm Enclosures
*) All physical installations must comply with NEC 110.26.
Allow for enough working space behind the Enclosure for electrical work to be carried
out (e.g. if you want to connect an XR Enclosure at a later stage).
Space requirements in mm
Minimum clearance above Enclosure (A) 20 508
Enclosure depth (B) 33.62 854
Enclosure width (C) 20.59 523
Minimum free rear space for ventilation* (D) 4 100
Minimum front clearance (E) 39.37 1000
Conduit Box, depth (F) 3.46 88
No side clearance required (add width of Enclosure Stabilizing
Brackets for floor anchoring if applicable)*
00
Stabilizing Bracket width 3.34 85
Total installation depth, inclusive of Front Panel, Conduit Box
and minimum front and rear clearances (G)
80.39 2042
(E)
(D)
(A)
UPS
Conduit Box (F)
(B)
(G)
(C)