Cut Sheet

Commercial Products
Switch and Outlet BOxeS and cOverS
Visit our website at www.appletonelec.com or contact us at [phone].
© February 2015
1432
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 (12)1∕2”
— —
19.96
(44.0)
4SE-1/2
Extension Ring
1-1/2” Deep, Drawn
Top: Two 8-32 screws
Bottom: Two slide-on slots
1-1∕2 21.0 (8)3∕4”
—
—
19.96
(44.0)
4SE-3/4
(53151-3∕4)
Extension Ring
1-1/2” Deep, Drawn
Top: Two 8-32 screws
Bottom: Two slide-on slots
1-1∕2 21.0
(8)1∕2”
(4)3∕4”
—
—
29.03
(64.0)
4SSBE-SPL
Extension Ring
1-1/2” Deep, Welded
Top: Two 8-32 screws
Bottom: Cutout for
switch or handy box
Red
Box
Option
1-1∕2 21.0
(8)1∕2”
(4)3∕4”
—
—
29.03
(64.0)
4SSBE-SPLRD 
1-1∕2 21.0
(6)1∕2”
(4)3∕4”
— —
21.32
(47.0)
4SES
(53151-1∕2)
Combo Extension-Thru-Ring
1-1/2” Deep, Drawn
Top: Two 8-32 screws
Bottom: Two 8-32 screws
and two slide-on screws
Red
Box
Option
1-1∕2 21.0
(6)1∕2”
(4)3∕4”
— —
21.32
(47.0)
4SESRD 
 For fire alarm circuits. Red powder coat finish.
NEC/CEC:
UL Standard: 514A
UL Listed: E2527
NEMA: OS-1
4” Square Box Extension Rings and Thru-Ring
With Knockouts