CAUTION
TO REDUCE THE RISK OF ELECTRIC SHOCK - Use 
only in dry locations and only indoors.   plug DO NOT
into another relocatable power tap. DO NOT “daisy 
chain” extension cords. DO NOT use with any 
aquarium equipment.   use if properly DO NOT
grounded outlets are not available. DO NOT install 
this device if there is less than 10 meters (30 feet) or 
more of wire between the electrical outlet and 
electrical service panel. DO NOT use for medical or 
life support equipment. This device features an 
internal protection that will disconnect the surge 
protective component at the end of its useful life, but it 
will maintain unprotected power to the load. If this 
situation is undesirable for the application, follow the 
manufacturer’s instructions for replacing the device. 
The conductors used to connect the SPD to the line or 
bus and to ground shall not be any longer than 
necessary and shall avoid unnecessary bends. DO NOT 
plug devices over 2.4A to each USB port.
TECHNICAL SUPPORT
Please contact our Tech Support Department 
with installation, troubleshooting, or general 
product questions.
 • Phone: 1-877-297-6937
 • Email: tech@cpsww.com
 • Hours of Operation:
Monday – Friday 7:00am – 6:00pm CST
USER MANUAL
3-
3-
Outlet Ext
Outlet Ext
ension Cension Corord
d
with 2 USB Pwith 2 USB Portsorts
P303UMT/P303UDBL/P303UOR
P303UMT/P303UDBL/P303UOR
P303UMT/P303UDBL/P303UOR
P303UMT/P303UDBL/P303UORP303UMT/P303UDBL/P303UOR
1
Copyright © 2020 Cyber Power Systems (USA), Inc. All rights reserved.
CONGRATULATIONS ON YOUR PURCHASE
Thank you for selecting the CyberPower P303UMT/
P303UDBL/P303UOR Extension Cord. This manual 
explains the features and operation of the 
P303UMT/P303U BL/P303UOR. Please take a few D
moments to read this manual.
EXTENSION CORD INSTRUCTIONS
1. Plug the extension cord into a standard grounded
wall receptacle by fully inserting the plug and 
ensure that there are no exposed conductors.
2. Make sure the electronic equipment is turned o 
before plugging into the extension cord outlets. Do 
not use extension cords to connect equipment to 
the extension cord.
FEATURES
 1. Standard Grounded Outlets (3)
 2. USB Charging Ports* (2)
Connect and charge up to two (2) USB devices.
*USB outlets cannot be used as a USB hub. This 
device does not transfer data.
SPECIFICATIONS
 • Model Number: P303UMT/P303U BL/P303UORD
 • Outlets: Standard Grounded Outlets (3)
 • Surge Protection: 350 Joules
 • Electrical Rating: 125V/13A/1625W/60Hz
 • USB Charging Rating: 5V/2.4A shared
 • Clamping Voltage: 900V (L-N)
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