Cut Sheet

Commercial Products
Switch and Outlet BOxeS and cOverS
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© February 2015
1445
NEC/CEC:
UL Standard: 514A
UL Listed: E2527
NEMA: OS-1
4-11/16” Square Boxes and Extension Rings
With Knockouts
Depth
(inches)
Wiring Cubic
Inch Capacity
Knockout Description
Weight per
100 kg (lb)
Catalog Number
(Universal No.)
Sides Ends Bottom
4-11/16" Square Boxes
2-1∕8 42.0 (9)EccentricKO
—
(1)1/2”
(1)3∕4”
(2)EccentricKO
56.25
(124.0)
4SJD-EK-VB
2-1∕/8” Deep, Welded
Offset vertical bracket
flush with front of box
2-1∕8 42.0 (6)1” —
(2)1∕2”
(2)3∕4”
56.25
(124.0)
4SJD-1-VB
2-1∕/8” Deep, Welded
Offset vertical bracket
flush with front of box
4-11/16" Square Box Extension Rings
2-1∕8 42.0
(4)1∕2”
(6)3∕4”
— —
29.94
(66.0)
4SJDE-1/2-3/4
2-1∕/8” Deep, Drawn
8-32 tapped holes
and slide-on screw
slots in bottom
Red
Box
Option
2-1∕8 42.0
(4)1∕2”
(6)3∕4”
— —
29.94
(66.0)
4SJDE-1/2-3/4RD 
2-1∕8
42.0 (8)1”
— —
29.94
(66.0)
4SJDE-1
2-1∕/8” Deep, Drawn
8-32 tapped holes
and slide-on screw
slots in bottom
 For fire alarm circuits. Red powder coat finish.