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Tripp Lite > 
Item#: N82E16812120556

Tripp Lite ISOBAR825ULTRA 8 Outlets 3840 Joules 25' Cord Isobar Premium Surge Suppressor

  • 25 Feet
  • 8 Outlets
  • 3840 joules
  • 1440 Watts

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews


With more than 18 million satisfied customers worldwide, Tripp Lite's Isobar® is the world's number-one selling premium surge protector. Tripp Lite's exclusive Isobar surge suppression technology, combined with a nearly indestructible metal case, stops even the strongest surges before they can damage or destroy sensitive equipment. The ISOBAR825ULTRA features unique isolated filter banks that block disruptive EMI/RFI line noise interference and prevent mutual interference between connected components, plus an extra-long 25-ft. cord. These premium features make the ISOBAR825ULTRA ideal for a wide range of applications: factories, warehouses, retail outlets and home offices.

ISOBAR825ULTRA Applications

Ultimate Protection for All Electronics

The ISOBAR825ULTRA offers powerful surge protection for all electronics. It provides eight AC outlets arranged in four isolated filter banks. Outlets are widely spaced to accommodate up to four large transformers without blocking remaining outlets. A set of four plug-in covers is included to safeguard unused outlets. Diagnostic LEDs confirm power availability, line fault and surge protection status at a glance. An extra-long 25-ft. cord enables connection to a distant wall outlet and a space-saving right-angle plug allows furniture to be placed flush against the wall. Four keyhole slots on the back of the unit enable the ISOBAR825ULTRA to be wall-mounted.

Isolated Filter Banks
ISOBAR825ULTRA Feature Focus

Powerful Surge Protection and Performance Enhancement

More joules mean more protection! The ISOBAR825ULTRA's 3840-joule surge suppression rating, Isobar surge protection technology and rugged all-metal housing shield connected equipment from even the strongest surges. EMI/RFI line noise filtering helps components perform at their peak. Line noise filtering eliminates performance problems that can be caused by radio transmissions, fluorescent lighting and appliances, while promoting longer component life spans.

Exclusive Isolated Filter Banks

Devices connected to the same surge suppressor can interfere with one another's performance, for instance when office equipment or household appliances (printers, copiers, blenders, vacuums, fans) degrade TV picture and sound quality. The Isobar is the only surge protector with internal barriers (called isolated filter banks) that prevent disruptive line noise from causing A/V distortion, computer lock-ups, data errors and similar problems. Isolated filter banks ensure that peripheral devices and appliances don't degrade the performance of computers and sensitive A/V components.

Built-In Diagnostic Capability

The ISOBAR825ULTRA features 3 diagnostic LEDs (LINE OK, GROUND OK & SURGE OK) that show power and protection status at a glance. An illuminated master switch provides one-touch power control over all connected components.

Versatile Installation Options

The ISOBAR825ULTRA features an extra-long 25-ft. cord to reach distant outlets. A space-saving right-angle plug allows office furniture, cabinets, etc. to be placed flush against the wall. The ISOBAR825ULTRA's rugged all-metal case stands up to harsh environments such as warehouses, garages and factory floors. The case is equipped with keyhole mounting tabs to facilitate permanent installation on or under counters and worktables, on walls, etc. Included outlet covers (set of four) may be used to safeguard unused outlets.

Ultimate Peace of Mind

The ISOBAR825ULTRA comes with $50,000 Ultimate Lifetime Insurance coverage for connected equipment—guaranteed lifetime protection against damage due to surges, including direct lightning strikes. Ultimate Lifetime Insurance coverage begins the moment you purchase your Tripp Lite surge protector—no forms to fill out or send in! Additionally, all Tripp Lite surge protectors are backed by a lifetime product warranty and a rapid-response, no-questions-asked replacement policy.

Technical Specifications

  • Voltage compatibility: 120 VAC
  • Frequency compatibility: 50/60 Hz
  • Output volt amp capacity (amps): 12
  • AC suppression rating (joules): 3840
  • Outlet quantity/type: 8 x 5-15R (includes 4 outlet safety covers)
  • Input cord: 25 ft.
  • Input plug: 5-15P right-angle
  • Switches/LEDs: Lighted On/Off power switch, Circuit breaker reset button, 3 diagnostic LEDs
  • Dimensions (HxWxD): 2.5" x 9" x 3.5"
  • Weight: 3.3 lbs
  • Material of construction: Metal
  • Agency approvals: UL 1449, UL 1363 & UL 1283; FCC Part 68
What’s in the Box

What's in the Box

  • • ISOBAR825ULTRA Surge Protector
  • • Set of 4 outlet safety covers
Tripp Lite
ISOBAR Surge Protectors
Outlets 4 6 8 8
Joules 3330 3330 3840 3840
Metal Housing Yes Yes Yes Yes
Cord Length 6 ft. 6 ft. 12 ft. 25 ft.
Ultimate Lifetime Insurance $50,000 $50,000 $50,000 $50,000
Warranty Lifetime Lifetime Lifetime Lifetime

Learn more about the Tripp Lite ISOBAR825ULTRA

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): Lifetime
  • Limited Warranty period (labor): 0 day
  • Read full details

Customer Reviews of the Tripp Lite ISOBAR825ULTRA

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  • vegas l.
  • 12/19/2015 6:48:58 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsi feel secure with these.

Pros: i got them on sale at black friday. very good high quality. just what i was looking for. i like the metal rather than plastic. these feel like they could be used in a machine shop or other industrial uses.

Cons: none so far.

Other Thoughts: i got two of them. i just hope they work when needed because they are protecting my expensive pc network. well some of it anyways. i like to add voltage regulators behind these to smooth out the electricity.

UPDATE 12/19/15: i bought another one of these for my son, and i am about to buy another one for me! they are great!

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  • Peter H.
  • 4/1/2015 8:25:31 AM
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsWorks as described/NIce Build

Pros: Nice Design, extra Long Cord if required.

Cons: None

Did you find this review helpful? Yes No

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Home > 
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Power Protection > 
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Tripp Lite > 
Item#: N82E16812120556
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