Add to your order
- Coverage for accidental damage including drops, spills, and broken parts, as well as breakdowns (plans vary)
- 24/7 support when you need it.
- Quick, easy, and frustration-free claims.
- No Additional Cost: You pay nothing for repairs – parts, labor, and shipping included.
- Coverage: Plan starts on the date of purchase. Malfunctions covered after the manufacturer's warranty. Power surges covered from day one. Real experts are available 24/7 to help with set-up, connectivity issues, troubleshooting and much more.
- Easy Claims Process: File a claim anytime online or by phone. Most claims approved within minutes. We will send you an e-gift card for the purchase price of your covered product. In some instances, we will replace or repair it.
- Product Eligibility: Plan must be purchased with a product or within 30 days of the product purchase. Pre-existing conditions are not covered.
- Terms & Details: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Terms & Conditions will be available in Your Orders on Amazon. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase.
- No Additional Cost: You pay nothing for repairs – parts, labor, and shipping included.
- Coverage: Plan starts on the date of purchase. Malfunctions covered after the manufacturer's warranty. Power surges covered from day one. Real experts are available 24/7 to help with set-up, connectivity issues, troubleshooting and much more.
- Easy Claims Process: File a claim anytime online or by phone. Most claims approved within minutes. We will send you an e-gift card for the purchase price of your covered product. In some instances, we will replace or repair it.
- Product Eligibility: Plan must be purchased with a product or within 30 days of the product purchase. Pre-existing conditions are not covered.
- Terms & Details: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Terms & Conditions will be available in Your Orders on Amazon. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase.
- EXTENSIVE COVERAGE: Protection for all your eligible products purchased from Amazon. (Note: Products used commercially or for a business are excluded)
- EXCEPTIONAL PROTECTION: Including malfunctions and failures, plus drops or spills for eligible portable items.
- PAST & FUTURE PURCHASES COVERED: You're protected on eligible items purchased within the last year and new purchases going forward, including this purchase — starting 30 days after enrollment.
- QUICK & EASY CLAIMS: File a claim in minutes at Asurion.com/amazon. We'll repair, replace, or reimburse you up to the purchase price (excluding tax).
- NO HIDDEN FEES. You’re covered for up to $5,000 in total claims per 12-month period. Cancel anytime – your plan renews monthly until canceled. (Coupons applied at checkout do not renew monthly.)
Add to your order
- Coverage for accidental damage including drops, spills, and broken parts, as well as breakdowns (plans vary)
- 24/7 support when you need it.
- Quick, easy, and frustration-free claims.
-
-
-
-
-
-
-
6 VIDEOS
-

Image Unavailable
Color:
-
-
-
- To view this video download Flash Player
Tripp Lite ISOBAR4ULTRA Isobar 4-Outlet Heavy Duty Power Strip Surge Protector, 3330 Joules, 6ft Cord, Right-Angle Plug, Metal Power Strip, Industrial Garage Work Shop Bench, Mountable Power Strip
Purchase options and add-ons
Brand | Tripp Lite |
Color | White |
Total Power Outlets | 4 |
Voltage | 120 Volts |
Special Feature | On And Off Switch, Surge Protection, Mountable, Light Indicator, Wide Spaced Outlet |
About this item
- HEAVY-DUTY SURGE PROTECTOR POWER STRIP: Features 4-outlets, a robust 3330-joule rating, and a sturdy all-metal housing. Ensure comprehensive protection for your valuable electronics, including A/V, network, garage, and industrial equipment.
- POWER CONDITIONING: Patented design features 2 exclusive isolated filter banks that limit noise interaction among connected devices. Also blocks EMI/RFI line noise up to 80 dB, ensuring optimal performance of amplifiers and audio/video equipment.
- PREMIUM SAFETY FEATURES: Conforms to UL 1449 3rd Edition safety standards and exceeds IEEE 587 Category A and B surge suppression specifications. Includes a 12A circuit breaker with automatic shutoff if the protection circuit is incapacitated.
- VERSATILE INSTALLATION: The surge protector has a 6 ft. AC power cord and keyhole slots on the bottom panel for convenient wall or desk mounting options. Space-saving right-angle plug allows furniture and equipment to move flush against the wall.
- FULLY BACKED AND SUPPORTED: This product is protected by a Lifetime Limited Manufacturer's Warranty and $50,000 Ultimate Connected Equipment insurance. This device is also supported by Eaton's expert technical support team over phone, web and email.
Frequently bought together

Videos for similar products
Important information
Legal Disclaimer
Warranty does not cover misuse of product.
Top Brand: Tripp Lite
From the manufacturer


Ultra-Premium Isobar Protection
Tripp Lite is the smart choice for protecting your valuable equipment. This surge protector defends computers and electronics from damaging surges and disruptive line noise. If it is ever damaged by a surge, Tripp Lite will replace it, and connected equipment is covered too.
- Certified to meet strict UL standards (UL 1449 4th Edition; Intertek Report 3164962DAL-001; Series AGIB6939; Updated 07-24-2018)
- 3330-joule surge protection rating – More joules mean more protection!
- EMI/RFI noise filtering protects against outside interference
- Isolated filter banks protect against internal interference
- Resettable circuit breaker protects against overloads

Ready for Home and Office
This surge protector is perfect for home and office electronics of all kinds, including computers, monitors, printers, wireless routers, televisions, video game consoles, streaming media players, sound systems, device chargers, desk lamps and small appliances.
- 4 protected AC outlets
- Transformer outlets for bulky AC adapters
- 6-foot AC input cord with 5-15P right-angle plug
- Durable and fire-resistant metal housing
- Keyhole mounting slots
- Diagnostic LEDs

Key Features
- Diagnostic LEDs: Confirm active protection, proper grounding and correct wiring.
- AC Input Cord: High-quality cord with right-angle plug reaches distant outlets.
- Transformer Outlets: Provide extra space for bulky AC adapters.
- Illuminated On/Off Switch: Built-in breaker protects against overloads.
- Mounting Slots: Mount to wall, desk, workbench or media cabinet.
- Metal Housing: Provides superior durability and fire resistance.
- Advanced Surge/Noise Protection (Internal): Certified to meet strict UL standards.
- Isolated Filter Banks (Internal): Block interference between connected devices.
- Safe Thermal Fusing (Internal): Provides fail-safe protection in extreme conditions.

Compare with similar items
This Item ![]() Tripp Lite ISOBAR4ULTRA Isobar 4-Outlet Heavy Duty Power Strip Surge Protector, 3330 Joules, 6ft Cord, Right-Angle Plug, Metal Power Strip, Industrial Garage Work Shop Bench, Mountable Power Strip | Recommendations | |||||
Try again! Added to Cart spCSRF_Treatment Add to cart | Try again! Added to Cart spCSRF_Treatment Add to cart | Try again! Added to Cart spCSRF_Treatment Add to cart | Try again! Added to Cart spCSRF_Treatment Add to cart | Try again! Added to Cart spCSRF_Treatment Add to cart | Try again! Added to Cart spCSRF_Treatment Add to cart | |
Price | $79.08$79.08 | $87.99$87.99 | -9% $76.30$76.30 List: $84.00 | $27.95$27.95 | $86.27$86.27 | $17.99$17.99 |
Delivery | Get it Jun 20 - 24 | Get it as soon as Saturday, Jun 21 | Get it as soon as Saturday, Jun 21 | Get it as soon as Saturday, Jun 21 | Get it Jun 20 - 23 | Get it as soon as Saturday, Jun 21 |
Customer Ratings | ||||||
Sold By | TELeasy | Amazon.com | Amazon.com | Amazon.com | Shoplet | HHSOET |
power outlets | 4 | 4 | 8 | 12 | 4 | 4 |
number of ports | — | 4 | 8 | 12 | 4 | 4 |
plug type | Type B | Type A | Type B | Type B | Type B | Type B |
number of usb ports | 4 | 4 | 2 | 0 | 4 | 4 |
amperage | 12 amps | 15 amps | 3.9 amps | 15 amps | 9 amps | 12 amps |
power plug type | type b 3pin na | type a 2pin na | type b 3pin na | — | type b 3pin na | — |
voltage | 120 volts | 125 volts | 120 volts | 125 volts | 120 volts | 120 volts |
maximum surge rating | 3330 joules | 3450 joules | 2100 joules | 3940 joules | 3330 joules | 1440 watts |
material | Metal | Aluminum | Metal | — | Metal | Acrylonitrile Butadiene Styrene |
compatible devices | Refrigerator, Home Theater, Personal Computer, Speaker, Audio Sound System | Personal Computer, Laptop, Monitor, Printer, Router | computer | Air Conditioner | computer | Air Conditioner |
From the brand

Premium ISOBAR Surge Protector
Network-grade surge protection rating up to 3840 joules is ready to defend your sensitive electronics against the strongest spikes.
-
We make what matters work. Powering and connecting everything from the desktop to the data center.
Eaton’s Tripp Lite business provides industry-leading digital infrastructure solutions to power and connect everything in your world. Our product and expert personnel allows us to bring you comprehensive and innovative solutions backed by quality, service and support you can trust.
-
ISOBAR Surge Protectors
-
Most Popular Products
Product information
Product Dimensions | 6.26 x 3.31 x 0.1 inches |
---|---|
Item Weight | 2.52 pounds |
ASIN | B0000513O4 |
Item model number | ISOBAR4ULTRA |
National Stock Number | 5920-01-565-2857 |
Customer Reviews |
4.7 out of 5 stars |
Best Sellers Rank |
|
Is Discontinued By Manufacturer | No |
Date First Available | September 4, 1973 |
Manufacturer | Tripp Lite |
Language | English |
Warranty & Support
Feedback

Tripp Lite ISOBAR4ULTRA Isobar 4-Outlet Heavy Duty Power Strip Surge Protector, 3330 Joules, 6ft Cord, Right-Angle Plug, Metal Power Strip, Industrial Garage Work Shop Bench, Mountable Power Strip
Share:
Found a lower price? Let us know. Although we can't match every price reported, we'll use your feedback to ensure that our prices remain competitive.
Where did you see a lower price?
Fields with an asterisk * are required
Product Description
Premium Series Isobar Surge Protectors: The Gold Standard of Power Protection
Join over 20 million customers who trust Isobar surge suppressors to protect their electronics from surges and line noise. With high-quality components, a durable metal case, and a unique noise filtration system, Isobar offers top-tier protection.
Network-Grade 3330-Joule Surge Protection
Ideal for A/V components, network hardware, and more, this surge protector safeguards against surges and spikes. It meets IEEE 587 Category A and B specs and features full normal and common mode surge suppression.
Isolated Filter Banks
Three isolated filter banks limit noise interference among connected equipment, blocking up to 80 dB of EMI/RFI line noise. This ensures optimal performance for sensitive electronics.
4-Outlets for Various Devices
Four widely spaced NEMA 5-15R AC outlets accommodate bulky transformers. Safety covers prevent accidental contact with unused outlets.
Premium Safety Features
Automatic shutoff cuts power if the protection circuit fails. A lighted switch and 12A circuit breaker provide control and protection, while diagnostic LEDs indicate power, protection, and line fault status.
Easy Integration
A 6 ft. AC power cord and right-angle plug fit into tight spaces. Keyhole slots offer convenient mounting options, and the metal housing ensures durability.
Product guides and documents
What's in the box
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers appreciate the power strip's solid metal chassis and its effectiveness in protecting against surges, with one customer noting it worked right out of the box. The design receives positive feedback for its industrial look, and customers like its power supply capabilities. While some customers find it excellent value for money, others consider it expensive. Customers disagree on the noise level, with some reporting loud hums while others say it's silent.
AI Generated from the text of customer reviews
Customers praise the power strip's build quality, noting its solid metal chassis and professional-grade construction that has held up well during storms.
"This surge protector seemed promising and is definitely well-made, the concept is solid, and I can see how it could be helpful in many situations...." Read more
"Very well made, as it should be for the price you pay for this brand. Bought the six outlet model for a stereo setup...." Read more
"Quality surge protector, quality build and, as a master electrician, the only ones I use and recommend." Read more
"...The duplex outlets appear to be robust and they grip the connectors or transformers you plug into it very well...." Read more
Customers report that the power strip works well for their needs, particularly with their treadmill, and one customer mentions it worked right out of the box.
"Purchased for office. Worked great" Read more
"...They're cheaper and work fine, at least I've never had any problem. But I definitely want the ISOBAR for all my musical plugging in...." Read more
"...I think worth it for things that you can't afford to get zapped...." Read more
"...Worth every penny for peace of mind and genuine device protection." Read more
Customers appreciate the power strip's surge protection capabilities, noting it effectively guards against power surges and protects expensive electronics.
"This surge protector seemed promising and is definitely well-made, the concept is solid, and I can see how it could be helpful in many situations...." Read more
"Love this! It's a bit pricey for me, but it'll keep all my electronics safe and the best part is I don't ever have to worry about shocking myself...." Read more
"...Excellent protection!" Read more
"...quality item, would highly recommend for anyone looking for a premium surge protector. I am using it on my sim racing rig and it is great." Read more
Customers appreciate the power strip's design, noting its industrial look and attractive appearance, with one customer highlighting its well-designed filtering circuit.
"...That said, the product itself is well-designed, and I appreciate the quality and effort behind it...." Read more
"...at 45 degrees will never block other outlets, nice wall/bench attachment hangers on the back, and serious look)..." Read more
"...a 40 inch tube - largest commercial tube produced - picture is incredible from all visual angles!..." Read more
"...Lite ISOBAR6Ultra Isobar Surge Protector Power Strips is that they're ugly, or at least they look very industrial, and they're expensive...." Read more
Customers appreciate the metal construction of the power strip, noting that it is not made of plastic, with one customer specifically mentioning its heavy-duty metal case.
"...From the all metal case to the quality outlets and the extra levels of protection inside they are the best...." Read more
"...Metal exterior case and it’s fairly heavy compared to what you find at Walmart...." Read more
"...The ISOBAR6ULTRA has a metal housing, is rated for a much higher surge than most retail suppressors, and also has EMI/noise filtering...." Read more
"...The metal construction and heavy cord give me peace of mind as far a safety." Read more
Customers appreciate the power strip's performance, noting it supplies sufficient power and provides clean energy. One customer mentions it works well with 50Hz electrical service, while another finds it particularly useful for musicians.
"...protection on all 3 phases; 2) low let-through voltage..." Read more
"...There was no damage to my electrical units since these hold a small amount of power and also take a large hit, not your devices...." Read more
"...The power cord is REALLY stiff and can make placement awkward if your wall receptacle is on the opposite side of the power cord." Read more
"...This one's got a very high power absorption rating, probably overkill plus a solid metal enclosure. It's built like a tank. Got it on sale...." Read more
Customers have mixed experiences with the power strip's noise level, with some finding it silent while others report a loud hum.
"Has a buzzing sound. Bought due to supposed lower clamping voltage of 140v instead of typical 330v for more protection." Read more
"...eliminating line noise, and b) sensibly deciphering a real threat from mere variance...." Read more
"...and substituted every component, but the popping continued, scary loud at times...." Read more
"...: Tripp Lite ISOBAR Ultra Isobar Surge Protectors filter out more the junk electrical noise, they protect against surges for a longer time, when they..." Read more
Customers have mixed opinions about the power strip's value for money, with some finding it an excellent price while others describe it as a cheap plastic surge protector.
"...They're cheaper and work fine, at least I've never had any problem. But I definitely want the ISOBAR for all my musical plugging in...." Read more
"Love this! It's a bit pricey for me, but it'll keep all my electronics safe and the best part is I don't ever have to worry about shocking myself...." Read more
"...The Tripp Lite is inexpensive, very well made, has 8 outlets, the receptacles have a solid grip on outlet plugs, it includes and on/off switch and..." Read more
"...These are not high-end options; they gimmicks marketed to rubes...." Read more
Reviews with images

Best Surge Protector On the Market
Top reviews from the United States
There was a problem filtering reviews. Please reload the page.
- Reviewed in the United States on June 1, 2025Style: StandardSize: 8 OutletsVerified PurchaseThis surge protector seemed promising and is definitely well-made, the concept is solid, and I can see how it could be helpful in many situations. Unfortunately, it didn’t quite solve the issue I was hoping to fix.
It might be a great fit for someone with different needs or a different setup, but in my case, it just didn’t have the impact I expected. That said, the product itself is well-designed, and I appreciate the quality and effort behind it.
So while it wasn’t quite right for me, I wouldn’t discourage others from trying it, just make sure it matches your specific situation.
- Reviewed in the United States on April 29, 2025Style: StandardSize: 6 OutletsVerified PurchaseI bought this to solve an intermittent popping sound coming through the speakers in my stereo sys. I had isolated and substituted every component, but the popping continued, scary loud at times. Did a little searching, suggesting were that the noise was coming from the ac power lines, inside or outside house I can not say. So I did more research and decided I didn't want to spend a fortune on isolated power supplies or conditioners. The Tripp Lite Ultra Isobar 6 was recommended from various sources got it next day haven't heard a pop since. Absolutely solved the problem no bs no snake oil. I you can only pull so much power through this. I have 2 150w ab monos and 1 25w class a amp but when I add a linear power supply the monos won't power up. It works and it works well. Recomended.
- Reviewed in the United States on June 4, 2025Style: StandardSize: 4 OutletsVerified PurchaseLove this! It's a bit pricey for me, but it'll keep all my electronics safe and the best part is I don't ever have to worry about shocking myself. Next time I'll get the bigger one. For now I have a small setup so I didn't need the extra outlets.
- Reviewed in the United States on May 19, 2025Style: StandardSize: 6 OutletsVerified PurchaseVery well made, as it should be for the price you pay for this brand. Bought the six outlet model for a stereo setup. I do hope it lives up to its reputation.
- Reviewed in the United States on May 14, 2025Style: StandardSize: 6 OutletsVerified PurchaseThis is great! I have one in almost every room in my house, use for my tv's, router, PC, Laptop etc. Excellent protection!
- Reviewed in the United States on May 17, 2025Style: StandardSize: 6 OutletsVerified PurchaseQuality surge protector, quality build and, as a master electrician, the only ones I use and recommend.
- Reviewed in the United States on February 11, 2025Style: StandardSize: 6 OutletsVerified PurchaseHas a buzzing sound. Bought due to supposed lower clamping voltage of 140v instead of typical 330v for more protection.
- Reviewed in the United States on May 24, 2025Style: StandardSize: 6 OutletsVerified PurchasePurchased for office. Worked great
Top reviews from other countries
-
Jean-Pierre LemieuxReviewed in Canada on April 20, 2022
5.0 out of 5 stars tripp lite
Style: TelephoneSize: 4 OutletsVerified Purchasetres bon produit en general
- BMReviewed in Canada on December 2, 2023
5.0 out of 5 stars Reliable Quality
Style: StandardSize: 8 OutletsVerified PurchaseI’ve been using the 4-outlet versions for years to help protect my more expensive electronics.
They can be a bit pricey but are a great value if you can catch them on sale. The product seems more appropriate for more expensive electronics like TV’s, stereo equipment, musical equipment, etc.
I purchased the 8-outlet model and as expected, it has the same solid construction and feel as my other TrippLite surge protectors.
Be aware that depending on the plug types you’re trying to connect, you will not be able to fit 9V ‘wall warts’ side by side on every outlet, as the spacing between outlets is limited.
Also, the cord connects to the plug at a set 45 degree angle, which can sometimes interfere if you’re sharing a duplex wall outlet with something like timer, since the timer has to plug into the lower outlet and the TrippLite has to plug into the top outlet and ends up making contact with the timer. Not really an issue having the ability to swivel the cord connection would be a nice feature.
BMReliable Quality
Reviewed in Canada on December 2, 2023
They can be a bit pricey but are a great value if you can catch them on sale. The product seems more appropriate for more expensive electronics like TV’s, stereo equipment, musical equipment, etc.
I purchased the 8-outlet model and as expected, it has the same solid construction and feel as my other TrippLite surge protectors.
Be aware that depending on the plug types you’re trying to connect, you will not be able to fit 9V ‘wall warts’ side by side on every outlet, as the spacing between outlets is limited.
Also, the cord connects to the plug at a set 45 degree angle, which can sometimes interfere if you’re sharing a duplex wall outlet with something like timer, since the timer has to plug into the lower outlet and the TrippLite has to plug into the top outlet and ends up making contact with the timer. Not really an issue having the ability to swivel the cord connection would be a nice feature.
Images in this review
-
E.BarberiReviewed in Mexico on June 2, 2023
5.0 out of 5 stars Llegó a tiempo, funcionó según lo esperado
Style: StandardSize: 8 OutletsVerified PurchaseEl Ultra8 funcionó segun lo esperado, evitando tener esos ruidos electricos y proporcionando las 8 conecciones que necesitaba.
- Amazon CustomerReviewed in Canada on October 29, 2022
5.0 out of 5 stars Highest surge protection
Style: StandardSize: 4 OutletsVerified PurchaseIndustrial grade, will last years. I sourced this unit as it has some of the highest power surge protection ratings, over 3,000 Joules. Other brands charge the same price, many have half the surge protection value,and do not have the same build quality. Five star product!
-
SiGmaXReviewed in Mexico on March 5, 2024
5.0 out of 5 stars Buena calidad
Style: StandardSize: 6 OutletsVerified PurchaseFunciona como debe de ser, evita que mis componentes sufran de caídas o sobrecargas de energía. Incluso aunque te salte el foco de "Fault". Lo llevo usando 2 años sin problemas.