1. What is a GFCI?
A GFCI receptacle is different from
conventional receptacles. In the event of a
ground fault, a GFCI will trip and quickly
stop the flow of electricity to prevent
serious injury.
Definition of a ground fault: Instead of
following its normal safe path, electricity
passes through a person’s body to reach
the ground. For example, a defective
appliance can cause a ground fault.
A GFCI receptacle does not protect against
circuit overloads, short circuits, or shocks.
For example, you can still be shocked if you
touch bare wires while standing on a non-
conducting surface such as a wood floor.
Self-Test GFCI Receptacle with
SafeLock Protection
This is a Self-Test GFCI Receptacle
with SafeLock™ Protection; it conducts
an automatic test every three seconds,
ensuring it’s always ready to protect. If
the device fails the test, the indicator light
flashes to signal that the GFCI should be
replaced. It also has our proven SafeLock
Protection feature: if critical components
are damaged and protection is lost, power
to this receptacle, and any downstream
receptacles, will be disconnected.
Placement in circuit:
The GFCI’s place in the circuit determines
if it protects other receptacles in the circuit.
Sample circuit:
Placing the GFCI in position A will
also provide protection to “load side”
receptacles B and C. On the other hand,
placing the GFCI in position C will not
provide protection to receptacles A or B.
Remember that receptacles A, B, and C
can be in different rooms.
5. Turn the power OFF
Plug an electrical device, such as a lamp or
radio, into the receptacle on which you are
working. Turn the lamp or radio on. Then,
go to the service panel. Find the breaker or
fuse that protects that receptacle. Place the
breaker in the OFF position or completely
remove the fuse. The lamp or radio should
turn OFF.
Next, plug in and turn ON the lamp or radio
at the receptacle’s other outlet to make
sure the power is OFF at both outlets. If
the power is not OFF, stop work and call
an electrician to complete the installation.
4. LINE vs. LOAD
A cable consists of 2 or 3 wires.
LINE cable:
Delivers power from the service panel
(breaker panel or fuse box) to the GFCI.
If there is only one cable entering the
electrical box, it is the LINE cable. This
cable should be connected to the GFCI’s
LINE terminals only.
LOAD cable:
Delivers power from the GFCI to another
receptacle in the circuit. This cable
should be connected to the GFCI’s LOAD
terminals only. The LOAD terminals are
under the yellow sticker. Do not remove
the sticker at this time.
2. The GFCI’s features
LINE
LOAD
Service
Panel
LOAD
LINE LINE
FRONT VIEW
Screw (terminal) colors:
Green = grounding terminals
Silver = white terminals
Brass = hot terminals
BACK VIEW
Installing and
Testing a
GFCI Receptacle
with 2 USB ports
!
CAUTION
P.O. Box 4822 (800) 223-4185
Syracuse, NY 13221 www.legrand.us
For covering patents, see www.legrand.us/patents
Nº 341325 10/20
For help meeting NEC guidelines,
please visit www.legrand.us/gfci
Please read this leaflet
completely before
getting started.
Receptacle
Outlet
USB Type A*
Outlet
Mounting
bracket
TEST button:
See step 8
LINE
Hot terminal
(Brass):
Connection
for the LINE
cable’s black
wire
LOAD
Hot terminal
(Brass):
Connection
for the LOAD
cable’s black
wire
A yellow sticker
covers the LOAD
terminals.
Do not remove the
sticker at this time.
Grounding terminal
(Green): Connection
for bare copper or
green wire
LINE
White terminal
(Silver): Connection
for the LINE cable’s
white wire
LOAD
White terminal
(Silver): Connection
for the LOAD cable’s
white wire
• To prevent severe shock or electrocution,
always turn the power OFF at the service
panel before working with wiring.
• Use this GFCI receptacle with copper
or copper-clad wire. Do not use it with
aluminum wire.
• Do not install this GFCI receptacle on a
circuit that powers life support equipment
because if the GFCI trips,
it will shut down the equipment.
• For installation in damp or wet locations,
the GFCI receptacle must be Listed and
marked as Weather Resistant (WR).
• For installation in wet locations,
protect the GFCI receptacle with a
weatherproof cover that will keep both the
receptacle and any plugs dry.
• Outlets are not intended to support devices
or appliances. Do not hang devices by
charging cord.
• All cables should be routed away from the
outlet openings.
• Must be installed in accordance with
national and local electrical codes.
3. Should you install it?
Installing a GFCI receptacle can be more
complicated than installing a conventional
receptacle.
Make sure that you:
• Understand basic wiring principles and
techniques.
• Can interpret wiring diagrams.
• Have circuit wiring experience.
• Are prepared to take a few minutes
to test your work, making sure that you
have wired the GFCI receptacle correctly.
!
MISE EN GARDE
• Pour éviter toute décharge grave
ou électrocution, éteignez toujours
l’alimentation sur le panneau de service
avant de travailler sur le câblage.
• Utilisez cette prise DDFT avec des fils en
cuivre ou revêtus de cuivre. Ne l’utilisez
pas avec des fils en aluminium.
• Ne montez pas cette prise DDFT sur un
circuit qui alimente un équipement de
maintien en vie car, s’il se déclenche,
il éteindra l’équipement.
• En cas d’installation dans un lieu humide,
la prise DDFT doit être homologuée et
marquée comme étant à l’épreuve des
intempéries.
• Pour une installation dans des endroits
humides, recouvrez la prise DDFT d’une
protection étanche qui maintiendra la prise
et tous les branchements au sec.
• Les prises ne sont pas conçues pour
prendre en charge des appareils ou des
appareils. Ne suspendez pas les appareils
par le cordon de charge.
• Tous les câbles doivent être acheminés
loin des ouvertures de sortie.
• Ce dispositif doit être installé conformément
aux réglementations nationales et locales
relatives à l’électricité.
6. Identify cables/wires
IMPORTANT:
Do not install the GFCI receptacle in an
electrical box containing (a) more than 4
wires (not including the grounding wires)
or (b) cables with more than two wires (not
including the grounding wire). Contact a
qualified electrician if either (a) or (b)
is true.
• If you are replacing an old receptacle,
pull it out of the electrical box without
disconnecting the wires.
• If you see one cable (2-3 wires), it is the
LINE cable. The receptacle is probably
in position C (see diagram to the right).
Remove the receptacle and go to
step 7A.
• If you see two cables (4-6 wires), the
receptacle is probably in position A or B
(see diagram to the right). Follow steps
a-e of the procedure
to the right.
Procedure: box with two cables
(4-6 wires)
(a) Detach one cable’s white and hot wires
from the receptacle and cap each one
separately with a wire connector. Make
sure that they are from the same cable.
(b) Re-install the receptacle in the
electrical box, attach the faceplate,
then turn the power ON at the
service panel.
(c) Determine if power is flowing to the
receptacle. If so, the capped wires are
the LOAD wires. If not, the capped
wires are the LINE wires.
(d) Turn the power OFF at the service
panel, label the LINE and LOAD wires,
then remove the receptacle.
(e) Go to step 7B.
Reset button:
See step 8
Indicator
Light
USB Type C*
*Available in Type A-A, Type
A-C and Type C-C 2.1A total
DC power at 5 volts.