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PDU40TDUAL

Zero U Dual Independent Power Circuit 

Power Distribution Unit (PDU)

Owner’s Manual

1111 W. 35th Street • Chicago, IL 60609 USA

(773) 869-1234 • www.tripplite.com

Important Safety Instructions

SAVE THESE  INSTRUCTIONS

This manual contains instructions and warnings that should be followed
during the installation, operation, and storage of this product. Failure to
heed these instructions and warnings will void the product warranty.

Important Warnings

• The PDU provides convenient multiple outlets distributed across two independent power circuits, but it 

DOES NOT provide surge or line noise protection for connected equipment.

• The PDU is designed for indoor use only in a controlled environment away from excess moisture, temperature 

extremes, conductive contaminants, dust or direct sunlight.

• Do not connect the PDU to an ungrounded outlet or extension cords or adapters that eliminate the connection 

to ground.

• The power requirement for each piece of equipment connected to the PDU must not exceed the individual 

outlet’s load rating.

• The total power requirement for equipment connected to each of the two independent power circuits must not 

exceed the maximum load rating for that circuit.

• Do not drill into or attempt to open any part of the PDU housing. There are no user-serviceable parts inside.

• Do not attempt to modify the PDU, including the input plugs and power cables.

• Do not attempt to use the PDU if any part of it becomes damaged.

• Do not attempt to mount the PDU to an insecure or unstable surface.

• Never attempt to install electrical equipment during a thunderstorm.

Installation

STEP 1A - Zero U Rack Configuration.

Attach the three mounting clips supplied with the PDU to the rack

enclosure using the included hardware. The mounting clips should be attached along a vertical plane at
equidistant points which approximately correspond to the center and ends of the PDU. The exact mounting
configuration may vary depending on the rack and enclosure. If possible, use pre-existing mounting points
within the enclosure. 

STEP 1B - Wall or Under-Counter Configuration.

Attach the three mounting clips supplied with the PDU to

a wall or similar flat, secure surface using the included hardware. The mounting clips should be attached along
a vertical or horizontal plane at equidistant points which approximately correspond to the center and ends of the
PDU. If possible, use pre-existing mounting points. 

WARNING: Do not attempt to mount the PDU with the

outlets facing downward; the mounting clips are not designed to support the weight of the PDU in that

manner.

Note: Regardless of configuration, the user must determine the fitness of hardware and procedures before
mounting. The PDU and included hardware are designed for common rack and rack enclosure types and may
not be appropriate for all applications.

STEP 2: Attach the PDU to the mounting clips.

Using an assistant, place a rear corner of the PDU at an inside

edge of the mounting clips, pivot the PDU toward the alternate inside edge and snap into place.

STEP 3: Attach each input plug of the PDU to a grounded outlet.

The input plugs, power cords, breakers and

outlets are color-coded in black and gray to correspond to the two independent power circuits. 

WARNING:

Attach each input plug to a separate power circuit. Consult with the electrician at the installation site if

necessary.

STEP 4: Attach equipment to the PDU.

Do not exceed the load rating for each circuit; distribute equipment

appropriately between the two circuits to obtain the maximum utility from the PDU. 

STEP 5: Optional Installation.

The PDU includes two adapters that convert the L5-20P input plugs to 5-20P

input plugs. Use both adapters, a single adapter or neither of the adapters. The adapters are optional; the PDU
will work properly without connecting the adapters. The adapters are not color-coded.

Step 2

Step 1B

Step 1A

Step 3

Step 4

Step 5

Features

NEMA L5-20P Input Plugs:

The input plugs and associated power cords are color-coded to correspond

with each of the independent power circuits.

NEMA 5-20P Plug Adapters: 

The adapters convert the input plugs from NEMA L5-20P to NEMA 5-20P.

The adapters are not color-coded.

Circuit Breakers: 

If the current drawn by the equipment connected to the corresponding independent power

circuit exceeds that circuit’s Maximum Load Rating for longer than a few seconds, a circuit breaker will trip
to prevent possible damage. When a circuit breaker trips, its plunger will pop up. Disconnect excess
equipment from the affected circuit and allow the breaker to cool one minute before depressing the plunger
to reset the breaker. The circuit breakers are color-coded to correspond with each of the independent power
circuits.

NEMA 5-15/20R Outlets: 

The outlets are color-coded to correspond with each of the independent power

circuits.

Limited Lifetime Warranty

Seller warrants this product, if used in accordance with all applicable instructions, to be free from original
defects in material and workmanship for its lifetime. If the product should prove defective in material or
workmanship within that period, Seller will repair or replace the product, at its sole discretion. Service under this
Warranty can only be obtained by Buyer delivering or shipping the product (with all shipping or delivery charges
prepaid) to: Tripp Lite, 1111 W. 35th Street, Chicago, IL 60609. Seller will pay return shipping charges. Call
Tripp Lite at (773) 869-1234 before sending any equipment back for repair.

THIS WARRANTY DOES NOT APPLY TO NORMAL WEAR OR TO DAMAGE RESULTING FROM
ACCIDENT, MISUSE, ABUSE OR NEGLECT. SELLER MAKES NO EXPRESS WARRANTIES OTHER
THAN THE WARRANTY EXPRESSLY SET FORTH HEREIN. EXCEPT TO THE EXTENT PROHIBITED
BY APPLICABLE LAW, ALL IMPLIED WARRANTIES, INCLUDING ALL WARRANTIES OF
MERCHANTABILITY OR FITNESS, ARE LIMITED IN DURATION TO THE WARRANTY PERIOD SET
FORTH ABOVE; THIS WARRANTY

EXPRESSLY

EXCLUDES ALL

INCIDENTAL

AND

CONSEQUENTIAL DAMAGES. (Some states do not allow limitations on how long an implied warranty lasts,
and some states do not allow the exclusion or limitation of incidental or consequential damages, so the above
limitations or exclusions may not apply to you. This Warranty gives you specific legal rights, and you may have
other rights which vary from jurisdiction to jurisdiction).

WARNING: The individual user should take care to determine prior to use whether this device is suitable,
adequate or safe for the use intended. Since individual applications are subject to great variation, the
manufacturer makes no representation or warranty as to the suitability or fitness of these devices for any specific
application.

The policy of Tripp Lite is one of continuous improvement. Specifications are subject to change without notice.

WARRANTY REGISTRATION

Visit www.tripplite.com/warranty today to register the warranty for your new Tripp Lite product. You'll be automatically entered
into a drawing for a chance to win a FREE Tripp Lite product!*

* No purchase necessary. Void where prohibited. Some restrictions apply. See website for details.

Regulatory Compliance Identification Numbers

For the purpose of regulatory compliance certifications and identification, your Tripp Lite product has been assigned a unique
series number. The series number can be found on the product nameplate label, along with all required approval markings and
information. When requesting compliance information for this product, always refer to the series number. The series number
should not be confused with the marking name or model number of the product.

This product designed and engineered in the USA.

Copyright © 2006 Tripp Lite. All rights reserved. 

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PDU40TDUAL

Unidad de distribución de potencia (PDU) con

Circuito de potencia dual independiente de cero U

Manual del propietario

1111 W. 35th Street • Chicago, IL 60609 USA

(773) 869-1234 • www.tripplite.com

Instrucciones de seguridad importantes

GUARDE ESTAS INSTRUCCIONES

Este manual contiene instrucciones y advertencias que deben seguirse
durante la instalación, operación y almacenamiento de este producto. De
no seguirlas, se anulará la garantía del producto.

Advertencias importantes

• La PDU proporciona cómodas salidas múltiples distribuidas a través de dos circuitos de potencia 

independientes, pero NO proporciona protección contra sobretensión o ruido en la línea al equipo conectado.

• La PDU está diseñada sólo para empleo en interiores en un ambiente controlado, lejos del exceso de humedad, 

temperaturas extremas, contaminantes conductores, polvo o luz solar directa. 

• No conecte la PDU a una salida sin conexión a tierra ni a cables de extensión o adaptadores que eliminen la 

conexión a tierra.

• El requisito de potencia de cada equipo conectado a la PDU no debe exceder la capacidad de carga individual 

de la salida.

• El requisito de potencia total para el equipo conectado a cada uno de los dos circuitos de potencia 

independientes no debe exceder la máxima capacidad de carga para dicho circuito.

• No taladre ni trate de abrir ninguna parte de la cubierta de la PDU. No hay partes en su interior que requieran 

mantenimiento por parte del usuario.

• No intente modificar la PDU, incluyendo los enchufes de entrada y los cables de alimentación.

• No intente usar la PDU si alguno de sus componentes está dañado.

• No intente montar la PDU en una superficie insegura o inestable.

• Nunca intente instalar equipos eléctricos durante una tormenta eléctrica.

Características

Enchufes de entrada NEMA L5-20P: 

Los enchufes de entrada y sus cordones de alimentación asociados,

están codificados en color para corresponder a los circuitos de potencia independientes.

Adaptadores de enchufes NEMA 5-20P: 

Estos adaptadores convierten los enchufes de entrada de NEMA

L5-20P a NEMA 5-20P. Los adaptadores no están codificados por color.

Interruptores automáticos: 

Si la corriente consumida por el equipo conectado al circuito de potencia

independiente respectivo excede la máxima capacidad de carga por más de unos cuantos segundos, el
interruptor automático disparará para evitar posibles daños. Cuando un interruptor automático dispara, su
émbolo se extiende. Desconecte el equipo en exceso del circuito afectado y permita que el interruptor
automático se enfríe un minuto antes de presionar el émbolo para restablecer el interruptor automático. Los
interruptores automáticos tienen código de color para corresponderse con cada uno de los circuitos de
potencia independientes.

Salidas NEMA 5-15/20R: 

Estas salidas tienen código de color para corresponderse con cada uno de los

circuitos de potencia independientes.

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200603012 93-2533 PDU40TDUAL OM.qxd  3/27/2006  11:54 AM  Page 1

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