Legrand 880MPFC - Manual

Wiremold/ Legrand electrical systems conform to and should be
properly grounded in compliance with requirements of the current
National Electrical Code or codes administered by local authorities.
All electrical products may present a possible shock or fire hazard
if improperly installed or used. Wiremold/ Legrand electrical products
may bear the mark as UL Listed and/or Classified and should
be installed in conformance with current local and/or the National
Electrical Code.
880MPFC
Fire Classified Floor Boxes
I N S T A L L A T I O N I N S T R U C T I O N S
Installation Instruction No.: 1 007 421 – July 2008
NOTE: 880MPFC is a single gang offering. Can not gang Boxes
together and maintain Fire Classification.
IMPORTANT: Please read all instructions
before beginning.
Step 1 MEASURE AND LOCATE BOX.
Box must be located over deck valley directly above
thickest region of concrete.
Step 2 PREASSEMBLY
Secure box to mounting plate with cable ties or wire.
Loosely insert adapters and conduit elbows into box.
Mounting Plate
Reducer or Plug
Reducer
Offset displaced
downward
Second PVC
Elbow (Optional)
Cut ø 2"
[51mm] Hole
through Deck
Distance to outside
edge of elbow
Step 3 CUT OPENINGS INTO DECK
Measure to the outside edge of the 1" trade size PVC
elbow to the box centerline. Cut a 2" [51mm] tangent
to this dimension. Repeat on opposite side if both PVC
elbows are required.
2"
[51mm]
Step 4 ATTACH MOUNTING PLATE & GLUE
Secure mounting plate to deck by welding or screws.
Glue elbow(s) and adapter(s) in place. Seal any unused
hub with hub plug provided. Offset in mounting plate is
positioned downward. Seal off any excessive gaps
around elbows with duct tape.
1 1/4" to 1" Trade
Size Hub Reducer
Secure to Deck with
Screws or weld
1" Trade Size
PVC Elbow
Seal opening end
with Duct Tape
NOTE: Use only 1" trade size elbow supplied.