Cut Sheet

Commercial Products
Switch and Outlet BOxeS and cOverS
Visit our website at www.appletonelec.com or contact us at [phone].
© February 2015
1414
NEC/CEC:
UL Standard: 514A
UL Listed: E2527
NEMA: OS-1
4” Octagon 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 15.5 (4)1∕2” — 5)1∕2”
23.59
(52.0)
4O-1/2
(54151-1∕2)
1-1/2" Deep
1-1∕2 15.5 (4)3∕4” —
(3)1∕2”
(2)3∕4”
23.59
(52.0)
4O-3/4
(54151-3∕4)
1-1/2" Deep
1-1∕2 15.5
(2)1∕2”
(2)3∕4”
—
(3)1∕2”
(2)3∕4”
23.59
(52.0)
4O-SPL
(54151SPL)
1-1/2" Deep
1-1∕2 15.5 (4)1∕2” — (5)1∕2”
30.84
(68.0)
4OJB-1/2
(54151J-1∕2)
1-1/2" Deep;
JB Bracket set flush
Gauging notches 3/8" & 1/2"
2-1∕8 21.5 (4)1∕2” — (5)1∕2”
29.94
(66.0)
4OD-1/2
(54171-1∕2)
2-1/8" Deep
2-1∕8 21.5 (4)3∕4” —
(3)1∕2”
(2)3∕4”
29.94
(66.0)
4OD-3/4
(54171-3∕4)
2-1/8" Deep
 3-1/2” Cover Hole Centerline.