Installation Guide

SmartlockPro
®
Outlet Branch Circuit
AFCI Receptacle
Leviton Manufacturing Co., Inc.
201 North Service Road, Melville, NY 11747-3138
Telephone: [phone] • FAX: [phone]
Tech Line (8:30AM-7:00PM E.T. Monday-Friday): 1-800-824-3005
SmartlockPro is a registered trademark of Leviton Manufacturing Co., Inc.
NEC is a registered trademark of the National Fire Protection Association, Inc.
© 2013 Leviton Manufacturing Co., Inc. All rights reserved.
G-9015/D13-dp
What are Arc-Faults?
Series arc
Parallel arc
An arc-fault is an unintentional arcing condition in
a circuit. Arcing creates high intensity heating at
the point of the arc resulting in burning particles
that can exceed 10,000 degrees Fahrenheit and
may over time ignite surrounding material such as
wood framing or insulation. There are two types
of potentially dangerous arcs – parallel arcs and
series arcs. The illustrations below depict the
dangerous current ow as it occurs in both events.
What Causes Arc-Faults?
Often unseen, arc faults can occur anywhere in
the home’s electrical system including:
Through wires or cords damaged by heat,
sunlight or humidity
Within walls from nails, screws or
staples inadvertently driven into wires
Through old or cracked wires or cords
At loose electrical connections or cords
damaged by doors closing on them
Within electrical cords accidently damaged by
furniture resting or pressing upon them
The U.S. Fire Administration (USFA) National
Fire Incident Reporting System reported that in
2011, an estimated 47,700 home structure fires
reported to U.S. fire departments involved some
type of electrical failure or malfunction as a
factor contributing to ignition. These fires
resulted in 418 civilian deaths, 1,570 civilian
injuries, and $1.4 billion in direct property dam-
age. According to the National Fire Protection
Association (NFPA), arc-faults are “the principle
electrical failure mode resulting in fire”.