Selection Guide

39
Square boxes and accessories
4" Square boxes and Vapor tite boxes
Knockouts (in.)
Cat. No.
Depth
(in.)
Capacity
(cu. in.) Clamps Brackets
Each side
Conduit
Each end
Conduit
Bottom
Conduit
Std.
Ctn.
With armored cable/metal-clad clamps

  
,

,
E



  
,

,
E



  B 
,

,
E



  SV 
,

,
E



  CV 
,

,
E



  MS 
,

,
E


For armored cable and metal-clad clamps

  
,

,
E



  MS 
,

,
E




" ground
wire)
  MS 
,

,
E



  
-


Vapor tite boxes
52151 BX* B bracket
mounted flush
52171 MSX*
MS bracket for
1
5
8", 2
1
2", 3
5
8",
4" metal studs
52151 CVX*
CV bracket
mounted flush
52151 VX*
SV bracket
mounted
flush
52151 MS X*
MS bracket for 1
5
8",
2
1
2", 3
5
8", 4" metal
studs
52151XP
52171X
52171MSXP*
52151 X
* All bracketed boxes come complete with eccentric knockouts.
Per UL514A, suitable for use without a bonding jumper in circuits above or below 250 volts. Pigtail wire is #12 AWG insulated, 10
1
2" long.
All 52171 series boxes have a raised ground bump.
Cat. No. Description Clamps
Each side
Conduit
Each end
Conduit
Bottom
Conduit
Capacity
(cu. in.)
Std.
Ctn.

"- deep with conduit KOs

" &
"E

" &
"E

" &
"E  

"- deep with conduit KOs

" &
"E

" &
"E

" &
"E  

"- deep with armored cable clamps 

" &
"E 
"  

"- deep with armored cable clamps 

" &
"E 
"  
CXLESSX
"- deep with armored cable clamps 
"

"  
Cat. No. Description Depth Std. Ctn.
 
" and
" K.O. side and bottom
" 
  Flat 
 
" and
" K.O. side and bottom
" 


" Sq. blank cover with gasket Flat 


" Sq. box,
" and
" K.O. side and bottom
" 
 
" K.O. side and bottom
" 
  Flat 
Top edge of boxes are flush at ears so gasket
seals out all air
Features and benefits:
All K.O.’s pressed flush but still easy to remove
No holes anywhere
SQUARE BOXES AND ACCESSORIES