WARNINGS AND CAUTIONS:
• To be installed and/or used in accordance with appropriate electrical codes and regulations.
• Install this device only on a single branch circuit protected by a fuse or a circuit breaker.
• This device is not a lightning arrestor. It will not survive a direct lightning strike to the premises.
• Do not install this device if there is not at least 10 meters (30 feet) or more of wire between the
electrical outlet and the electrical service panel.
• Use this product with copper wire only.
• If you are not sure about any part of these instructions, consult an electrician.
15A-125VAC, 60Hz
Catalog Number:
MT528 - Commercial Grade
MT728 - Commercial Grade with Alarm
MT828 - Hospital Grade with Alarm
DESCRIPTION
The Lev-Lok
Modular Wiring Device System is engineered for fast and easy installation. These devices employ a simple twist and lock wiring module that ensures a safe, reliable connection while at the same
®
time providing for extremely fast and easy installation. Lev-Lok
easy installation.
OPERATION
• Surge Protective Receptacles are designed to reduce the random energy surges of voltage transients and electrical noise on the power supply line.
• Surge Protective Receptacles can be used to protect sensitive electronic equipment in industrial, commercial and residential locations from the stress and degradation inflicted by voltage transients.
• Hospital Grade and Commercial Grade Surge Protective Receptacles have an audible tone alarm. If transient protection is lost, the alarm will sound and the green LED indicator light will go out. The alarm tone
can be silenced by removing the alarm seal and depressing the alarm button. Hospital Grade receptacles are identified by a GREEN dot on the device face.
• The diagnostics LED indicator light is ON continuously when protection is active, but turns OFF when protection circuit is deactivated due to excessive transients. The entire unit must be replaced if surge
protection is required. If the unit is not replaced, it will function only as a conventional receptacle within its given rating. Tamper Resistant Surge Protective Receptacles have a shutter mechanism inside the
receptacle that blocks access to the contacts unless a two-prong plug is inserted, helping to ensure that hairpins, keys, etc. will be locked out.
TO INSTALL
NOTE: Use only with Leviton Lev-Lok
module, Cat. No. MSTWL (sold separately).
®
TO WIRE MSTWL MODULE AND CONNECT SURGE RECEPTACLE:
1. WARNING: TO AVOID FIRE, SHOCK, OR DEATH; TURN OFF POWER AT CIRCUIT BREAKER OR FUSE AND TEST THAT THE POWER IS OFF BEFORE WIRING!
2. Remove pre-cut insulation from module leads, twist all strands tightly together, and strip wall box wires [about 5/8" (1.6 cm)].
3. Connect wires per Fig. 1. Push wires firmly into wire connectors (not supplied). Screw connectors on clockwise making sure that no bare wire shows below the connector and secure each connector with electrical tape.
4. Remove protective label from module to expose contacts (Fig. 2). Align rounded end of module with rounded guide on back of receptacle and push module contacts onto receptacle pin contacts (refer to Fig. 3). Turn module
clockwise until it locks under receptacle tabs with an audible "snap" (Fig. 4). Module must be seated flush with receptacle base when properly installed (Fig. 5).
NOTE: Module can only be inserted one way onto receptacle. Do not attempt to force improper orientation as damage to module or receptacle may occur (Fig. 6).
NOTE: DO NOT use receptacle or module if tabs are broken.
5. Dress wires with a bend to minimize strain, push wire connectors into wall box, and mount receptacle to wall box using mounting screws provided. Mount wallplate (sold separately).
6. The surge protection indicator LED should illuminate when power is restored (Fig. 7).
7. Restore power at circuit breaker or fuse. Installation is complete.
TO DISCONNECT RECEPTACLE FROM MODULE:
1. WARNING: TO AVOID FIRE, SHOCK, OR DEATH; TURN OFF POWER AT CIRCUIT BREAKER OR FUSE AND TEST THAT THE POWER IS OFF BEFORE DISCONNECTING!
2. Remove receptacle mounting screws and pull assembly out from wall box.
3. Push receptacle tab #1 and turn module counterclockwise until unlocked and separate (Fig. 5).
Fig. 1
Wall
Mur
Wall box
Pared
Wire Connector
Boîte murale
(twist clockwise)
Caja de pared
Marette
(tourner vers la droite)
Conector de alambre
(hacia la derecha)
Hot (Black)
Actif (noir)
Fase (negro)
Electrical tape
Ruban isolant
Cinta aislante
Module
Module
Módulo
Ground (Green)
Terre (vert)
Neutral (White)
Verde a tierra
Neutre (Blanc)
Neutro (Blanco)
Protective Label
Étiquette protectrice
Etiqueta protectora
Fig. 6
WARNING !
AVERTISSEMENT!
ADVERTENCIA!
INCORRECT ALIGNMENT
POSITION OF MODULE
MODULE MAL ORIENTÉ
POSICIÓN INCORRECTA DE
ALINEAMIENTO DEL MÓDULO
Lev-Lok
Surge Receptacle
®
INSTALLATION
MT528
MT728
MT828
®
brand wiring devices address the reliability and performance concerns of specification engineers without sacrificing the contractor's need for fast,
Fig. 2
Module Contacts
Contacts du module
Contactos del módulo
Receptacle
Pin Contacts
Contacts de la prise
Contactos del pin
del receptáculo
Rounded
Guide
Guide
Guía
redondeada
Position of Module
Module bien orienté
Rounded Guide
Posición correcta de
Guide
alineamiento del módulo
Guía redondeada
This product is covered by U.S. Pat. Nos. US 7,868,719; D618,627; 7,357,652; 7,666,010; 8,096,818; 7,355,117;
Fig. 7
7,820,909; 8,242,362; MX 304965; CA 2,677,283; CN ZL200880004760.2; ZL200790000094.6
Surge Protection Indicator LED
Indicateur de surtension LED
LED Indicador de Protección
FOR CANADA ONLY
For warranty information and/or product returns, residents of Canada should contact Leviton in writing at Leviton
Manufacturing of Canada Ltd to the attention of the Quality Assurance Department, 165 Hymus Blvd,
Pointe-Claire (Quebec), Canada H9R 1E9 or by telephone at 1 800 405-5320.
Leviton warrants to the original consumer purchaser and not for the benefit of anyone else that this product at the
time of its sale by Leviton is free of defects in materials and workmanship under normal and proper use for ten years
from the purchase date. Leviton's only obligation is to correct such defects by repair or replacement, at its option.
For details visit www.leviton.com or call 1-800-824-3005. This warranty excludes and there is disclaimed liability
for labor for removal of this product or reinstallation. This warranty is void if this product is installed improperly
or in an improper environment, overloaded, misused, opened, abused, or altered in any manner, or is not used
under normal operating conditions or not in accordance with any labels or instructions. There are no other or
implied warranties of any kind, including merchantability and fitness for a particular purpose, but if any
implied warranty is required by the applicable jurisdiction, the duration of any such implied warranty, including
merchantability and fitness for a particular purpose, is limited to ten years. Leviton is not liable for incidental,
indirect, special, or consequential damages, including without limitation, damage to, or loss of use of,
any equipment, lost sales or profits or delay or failure to perform this warranty obligation. The remedies
provided herein are the exclusive remedies under this warranty, whether based on contract, tort or otherwise.
For Technical Assistance Call: 1-800-824-3005 (U.S.A. Only)
WARNINGS AND CAUTIONS:
• A surge protective receptacle will provide maximum protection for loads plugged directly into it. It will
provide some protection to downstream receptacles, though protection diminishes proportionally with
the length of wire run.
• This device features an internal protection that will disconnect the surge protective component but
will maintain power to the load – now unprotected. When protection is lost the surge protection
indicator LED will shut off. If this situation is undesirable for the application, follow the manufacturer's
instructions for replacing the device.
20A-125VAC, 60Hz
Catalog Number:
MT538 - Commercial Grade
MT738 - Commercial Grade with Alarm
MT838 - Hospital Grade with Alarm
Fig. 3
Correct Alignment
Tourner le module vers la
LIMITED 10 YEAR WARRANTY AND EXCLUSIONS
www.leviton.com
MT538
Fig. 4
Receptacle Tab #1
(push to release latch)
Taquet 1 de la prise
(pousser pour libérer le verrou)
Pestaña #1 del Receptáculo
(presione para soltar el seguro)
Turn Module
Clockwise to Lock
Receptacle Tab #2
droite pour le verrouiller
Taquet 2 de la prise
Gire el módulo hacia la
Pestaña #2 del Receptáculo
derecha para asegurar
PK-93870-10-02-0A
ENGLISH
MT738
MT838
Fig. 5