Cut Sheet

Commercial Products
Switch and Outlet BOxeS and cOverS
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© February 2015
1443
NEC/CEC:
UL Standard: 514A
UL Listed: E2527
NEMA: OS-1
4-11/16” Square Boxes
With Knockouts
Depth
(inches)
Wiring Cubic
Inch Capacity
Knockout Description
Weight per 100
kg (lb)
Catalog Number
(Universal No.)
Sides Ends Bottom
1-1∕2 29.5 (8)3∕4”
—
(2)1∕2”
(2)3∕4”
39.46
(87.0)
4SJ-3/4
(72151-3∕4)
1-1/2” Deep, Welded
1-1∕2 29.5 (10)EccentricKO —
(1)1∕2”
(1)3∕4”
(2)EccentricKO
39.92
(88.0)
4SJ-EK
(72151-SPL)
1-1/2” Deep, Welded
With
Green
Ground
Wire
1-1∕2 29.5 (10)EccentricKO —
(1)1∕2”
(1)3∕4”
(2)EccentricKO
39.92
(88.0)
4SJ-EKP 
1-1/2” Deep, Welded
2-1∕8 42.0 (10)3∕4” —
(2)1∕2”
(2)3∕4”
47.17
(104.0)
4SJD-3/4
(72171-3∕4)
2-1/8" Deep, Welded
2-1∕8 42.0 (12)EccentricKO
—
(1)1∕2”
(1)3∕4”
(2)EccentricKO
47.17
(104.0)
4SJD-EK
(72171-SPL)
Red
Box
Option
2-1∕8 42.0 (12)EccentricKO —
(1)1∕2”
(1)3∕4”
(2)EccentricKO
47.17
(104.0)
4SJD-EKRD

2-1/8" Deep, Welded
With
Green
Ground
Wire
2-1∕8
42.0 (12)EccentricKO
—
(1)1∕2”
(1)3∕4”
(2)EccentricKO
47.17
(104.0)
4SJD-EKP

2-1/8" Deep, Welded
 For fire alarm circuits. Red powder coat finish.
 Provided with green ground screw and 10” long No. 12 AWG solid, insulated green ground wire.