Cut Sheet

Commercial Products
Switch and Outlet BOxeS and cOverS
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© February 2015
1480
NEC/CEC:
UL Standard: 514A
UL Listed: E2527
NEMA: OS-1
Masonry Boxes
2-1/2” Deep x 3-3/4” High With Concentric Knockouts (Non-Gangable)
Width
(inches)
Wiring Cubic
Inch Capacity
Concentric Knockout Description
Weight per 100
kg (lb) Catalog NumberSides Ends Bottom
1-13∕16 15.5 (4)1∕2”–3∕4” (2)1∕2”–3∕4” (2)1∕2”–3∕4”
29.94
(66.0)
M1-250
1-13/∕16” Wide, Welded,
Single gang
3-5∕8
31.0 (4)1∕2”–3∕4” (4)1∕2”–3∕4” (4)1∕2”–3∕4”
52.62
(116.0)
M2-250
3-5∕/8” Wide, Welded,
Two gang
5-7∕16 46.5 (4)1∕2”–3∕4”
(6)1∕2”–3∕4” (6)1∕2”–3∕4”
63.50
(140.0)
M3-250
5-7∕/16” Wide, Welded;
Three gang
7-3∕8 67.0 (4)1∕2”–3∕4” (8)1∕2”–3∕4” (4)1∕2”–3∕4”
72.57
(160.0)
M4-250
7-3/∕8” Wide, Welded,
Four gang
Low Voltage Partitions
0.0 For2-1∕2”2-and3-GangMasonryBoxes
7.26
(16.0)
LVP-250