Cut Sheet

Commercial Products
Switch and Outlet BOxeS and cOverS
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© February 2015
1422
Depth
(inches)
Wiring Cubic
Inch Capacity
Knockout Description
Weight per 100
kg (lb)
Catalog Number
(Universal No.)
Sides Ends Bottom
1-1∕2 21.0
(8)1∕2”
(4)EccentricKO
—
(2)1∕2”
(2)EccentricKO
32.66
(72.0)
4SEK
1-1/2” Deep, Welded
With
Green
Ground
Wire
1-1∕2 21.0
(8)1∕2”
(4)EccentricKO
—
(2)1∕2”
(2)EccentricKO
32.66
(72.0)
4SEKP 
1-1/2” Deep, Welded
1-1∕2 21.0
(8)1∕2”
(4)3∕4”
—
(2)1∕2”
(2)3∕4”
33.11
(73.0)
4S-SPL
(52151-SPL)
1-1/2” Deep, Welded
1-1∕2
21.0
(8)1∕2”
(4)3∕4”
—
(2)1∕2”
(2)3∕4”
33.11
(73.0)
4S-SPL-DR
(52151-SPL)
Red
Box
Option
1-1∕2
21.0
(8)1∕2”
(4)3∕4”
—
(3)1∕2”
(2)3∕4”
33.11
(73.0)
4S-SPL-DRRD 
1-1/2” Deep, Drawn
With
Green
Ground
Wire
1-1∕2 21.0
(8)1∕2”
(4)3∕4”
—
(3)1∕2”
(2)1∕2”
33.11
(73.0)
4S-SPL-DRP 
1-1/2” Deep, Drawn
1-1∕2
21.0
(8)1∕2”
(4)3∕4”
—
(3)1∕2”
(2)3∕4”
31.75
(70.0)
4SP
Plenum Box; 1-1/2” Deep, Drawn;
Without any holes and with reset
knockouts (Screws supplied with
cover, Catalog number 8465P)
 Provided with green ground screw and 10” long No. 12 AWG solid, insulated green ground wire.
 For fire alarm circuits. Red powder coat finish.
NEC/CEC:
UL Standard: 514A
UL Listed: E2527
NEMA: OS-1
4” Square Boxes - 1-1/2" Deep
With Knockouts