Cut Sheet

Commercial Products
Switch and Outlet BOxeS and cOverS
Visit our website at www.appletonelec.com or contact us at [phone].
© February 2015
1426
Depth
(inches)
Wiring Cubic
Inch Capacity
Type
Clamp
Knockout Description
Weight per 100
kg (lb)
Catalog Number
(Universal No.)
Sides Ends Bottom
1-1∕2 21.0 CL-26
(4)1∕2”
(2) Eccentric
KO
(4)
21∕32”
(1)1∕2”
33.57
(74.0)
4SR-EK
1-1/2” Deep, Welded
Nail holes
1-1∕2 21.0 CL-26
(2)1∕2”
(1) Eccentric
KO
(4)
21∕32”
(1)1∕2”
39.92
(88.0)
4SRB-EK
1-1/2” Deep, Welded;
Stud NL Bracket set
flush with front of box
1-1∕2 21.0 CL-26
(2)1∕2”
(1) Eccentric
KO
(4)
21∕32”
(1)1∕2”
38.10
(84.0)
4SRVB-EK-PL
1-1/2” Deep, Welded; 1-3/8”
offset vertical bracket; Set flush
with front of box
With
Green
Ground
Wire
1-1∕2
21.0 CL-26
(2)1/2”
(4)
21/32”
(1)1/2”
38.10
(84.0)
4SRVB-EK-PLP 
1-1/2” Deep, Welded;
Plain vertical bracket
1-1∕2 21.0 CL-26
(2)1∕2”
(1) Eccentric
KO
(4)
21∕32”
(1)1∕2”
42.64
(94.0)
4SROB-EK
1-1/2” Deep, Welded; 1-3/8”
offset vertical bracket; Set flush
with front of box
 Provided with green ground screw and 10” long No. 12 AWG solid, insulated green ground wire.
NEC/CEC:
UL Standard: 514A, 514B
UL Listed: E2527
NEMA: FB-1, OS-1
4” Square Boxes
With Nonmetallic Sheathed Cable Clamps