Installation Instructions
© Copyright 2003-2012. All rights reserved. Generac Power Systems, Inc. PIB Install Inst. Rev A
Installation and Operating Instructions
POWER INLET BOX
20 amp Models 6336, 6339, 6342, 6345 | 30 amp Models 6337, 6340, 6343, 6346 | 50 amp Models 6338, 6341, 6344, 6347
WARNING: Installation of this Power Inlet Box and related wiring must be done by a qualified electrician in compliance with all applicable electrical codes. Power Inlet Boxes
provided with circuit breakers are designed for locations where the authority having jurisdiction has deemed that a “permanently installed generator outdoors” is considered
to be a separate structure, thus requiring a service entry disconnect. CALIFORNIA PROPOSITION 65 WARNING: Engine exhaust and some of its constituents are known to
the State of California to cause cancer, birth defects and other reproductive harm. This product may contain or emit chemicals known to cause cancer, birth defects and
other reproductive harm.
Proper Installation Location :
Be sure to install this Power Inlet Box (PIB) in a location that ensures that
the generator is at least 5 feet away from windows, doors or other
openings such as dryer vents, or air conditioning units. Hazardous fumes
from generators are colorless and often odorless, and can enter your
home from a variety of openings. During operation, be sure that your
portable generator exhaust is away from any type of opening.
Installing Models 6336, 6337, 6338, 6339,
6340, 6341, 6342, 6343, 6344:
These instructions describe how to install a remotely located Power Inlet
Box for supplying power to a transfer switch. This box can be painted to
match the exterior color of your house or dwelling. We recommend
painting prior to installation.
1. Remove the front cover.
2. For installations where side clearance is less than 12” on either side,
remove the 3 screws that secure the inlet to the bottom plate. For
installations where side clearance exceeds 12” on both sides,
remove the 4 screws that secure the bottom plate to the box.
3. Mount the Power Inlet Box on the outside of the building in a
convenient location (minimum 24” above grade), using the four holes
provided in the back of the cabinet Sealant should be used around
the anchoring screws to keep water from entering the box at these
mounting holes. Using approved wiring methods, install the wiring
through one of the knockouts provided in the enclosure. Be sure to
seal around the hole in the building where the conduit enters through
the wall. Extend wiring inside the Power Inlet Box approx. 8” from
the point of entrance. Attach green or bare ground wire to green lead
provided in Power Inlet Box with wire nut (provided by installer).
NOTE: The ground stud/pigtail in the non-metallic units is provided to
ground metallic conduit when connecting to the non-metallic Power
Inlet Box.
4. On models WITHOUT circuit breaker, strip and insert incoming leads
into terminals on power inlet. Insert white wire (neutral) into nickel-
plated screw terminal or white marking on the inlet. On models WITH
circuit breaker, attach the incoming hot leads to the wires on the
breaker with wire nuts (provided by installer).
5. Finally, carefully fold wires into the enclosure and reattach the bottom
assembly or inlet onto box with screws removed earlier.
Installing Models 6345, 6346, 6347:
1. Remove the front cover by loosening the screw on the lower front.
2. Using the three mounting holes in the back of the housing, secure the
housing to the structure. Sealant should be used around the
anchoring screws to keep water from entering
the box at these mounting holes.
3. Using approved wiring methods, install the
wiring through one of the knockouts provided
in the housing. Be sure to seal around the hole
in the building where the conduit enters
through the wall.
4. Extend wiring inside the Power Inlet Box
approx. 6” from the point of entrance. Attach
the green or bare ground wire to the green lead provided in the PIB
with a wirenut (provided by installer).
5. Strip the incoming leads approx. 5/8” and insert into the terminals on
the male power inlet. Insert the white lead (neutral) into the nickel
plated screw terminal or white marking on the inlet. “Hot” leads are
inserted into terminals noted by black or red markings or “X” and “Y”.
6. Carefully fold the wires into the enclosure and reattach the cover to
the housing. Installation is complete.
AVAILABLE ACCESSORY: Optional Flip Lid for
models 6336, 6337, 6338 and 6342, 6343 and 6344:
Want to keep dirt, debris and moisture out of your Power Inlet Box and protect the
power inlet terminals? Order Generac Model 6393. (See other side for installation
instructions)
Minimum
clearance
fromanyopening