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Tripp Lite ISOBAR4 Review (July 2024)

In a world increasingly reliant on technology, protecting your valuable electronics from power surges and other electrical issues is paramount. Tripp Lite, a reputable name in power protection, offers a range of surge protectors designed to safeguard your devices. One such product, the Tripp Lite ISOBAR4, has garnered attention for its robust features and reliable performance. This review delves into the ISOBAR4, exploring its key features, pros, cons, and overall value proposition.

The ISOBAR4 is a compact and versatile surge protector, designed to provide comprehensive protection for a range of electronic devices. It boasts a combination of advanced features that ensure optimal power delivery and safety. With its robust construction and high-quality components, the ISOBAR4 aims to deliver reliable protection against surges, spikes, and other electrical anomalies.

This review will analyze the ISOBAR4’s performance in various aspects, including its surge protection capabilities, power handling capacity, and user-friendliness. We will also evaluate its value proposition compared to other surge protectors on the market. By examining these aspects, this review aims to provide a comprehensive understanding of the ISOBAR4’s strengths and limitations, empowering you to make an informed decision about whether it is the right surge protector for your needs.

Ultimately, this review seeks to answer the crucial question: Is the Tripp Lite ISOBAR4 worth your investment? By thoroughly assessing its performance and features, we aim to provide you with the information necessary to determine if it meets your specific requirements and offers the protection you need for your valuable electronics.

Name: Tripp Lite ISOBAR4
Image: Tripp Lite ISOBAR4
Rating: 4.8 out of 5 stars

Tripp Lite ISOBAR4: A Comprehensive Review

The Tripp Lite ISOBAR4 is a popular surge protector that has been a staple in many homes and offices for years. It offers a combination of robust surge protection, convenient features, and a reliable build quality. This comprehensive review delves into the ISOBAR4’s design, power protection capabilities, connectivity options, performance, and overall value.

Design and Build Quality:

The ISOBAR4 boasts a compact and sturdy design that ensures durability and long-lasting performance. Its sleek black exterior blends seamlessly with most environments, while its heavy-duty construction provides reassurance against accidental bumps and drops. The unit features a robust power cord with a right-angle plug, allowing for convenient placement even in tight spaces. The ISOBAR4’s construction includes a high-quality plastic casing and a metal grounding prong, ensuring safe and effective grounding.

Power Protection:

The ISOBAR4’s primary function is to protect sensitive electronic devices from damaging power surges. It boasts a high-performance surge suppression circuit that effectively filters out dangerous voltage spikes and dips, preventing damage to connected equipment. The ISOBAR4 offers a 1080 joules surge protection rating, which is considered a good level for protecting devices like computers, TVs, and other electronics. It also includes noise filtering technology that reduces electromagnetic interference (EMI) and radio frequency interference (RFI) for optimal performance.

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Connectivity and Features:

The ISOBAR4 features six grounded outlets, providing ample space to connect multiple devices. It includes a convenient 1-foot cord length, making it easy to position the unit near your devices. The ISOBAR4 also includes a built-in 15A circuit breaker, which provides an additional layer of protection against electrical overloads.


The ISOBAR4 delivers on its promise of reliable and efficient surge protection. During testing, the unit effectively filtered out surges and noise without affecting the performance of connected devices. Its robust build quality and high surge protection rating ensure long-lasting performance and peace of mind.


  • Robust surge protection: The ISOBAR4’s 1080 joules rating provides reliable protection against power surges.
  • Compact and durable design: Its sturdy construction ensures long-lasting performance.
  • Convenient features: The ISOBAR4 includes a 15A circuit breaker and six grounded outlets for optimal versatility.
  • Noise filtering: The unit effectively filters out EMI and RFI for optimal performance.


  • Limited cord length: The 1-foot cord length may limit placement options for some users.
  • No USB ports: The ISOBAR4 does not include USB charging ports, which are becoming increasingly common in surge protectors.


The Tripp Lite ISOBAR4 is a reliable and well-built surge protector that offers robust surge protection and convenient features. Its compact design, high surge protection rating, and noise filtering technology make it an excellent choice for protecting sensitive electronics in homes and offices. While its limited cord length and lack of USB ports might be drawbacks for some users, the ISOBAR4’s overall performance and value make it a strong contender in the surge protector market.

Introduction: Overview and Key Features

The Tripp Lite ISOBAR4 is a surge protector designed to safeguard your valuable electronic devices from power surges, voltage fluctuations, and electrical noise. It is a compact and versatile unit that offers a range of features to ensure the safety and stability of your connected equipment.

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At the core of the ISOBAR4’s functionality lies its robust surge protection system. This system employs a combination of advanced circuitry and components to effectively absorb and dissipate surges, preventing them from reaching your devices. The ISOBAR4’s surge protection is backed by a lifetime warranty, providing peace of mind that your electronics are well-protected.

Beyond surge protection, the ISOBAR4 incorporates noise filtering capabilities to minimize the impact of electrical noise on your devices. This feature helps to improve the performance and stability of your electronics, particularly sensitive devices like audio systems and computers.

The ISOBAR4 boasts a user-friendly design with several outlets to accommodate a variety of devices. It also includes a convenient right-angle plug that allows for easy placement and minimizes cord clutter. This unit is ideal for protecting a range of devices, from computers and TVs to gaming consoles and home theater systems.

In addition to its core features, the ISOBAR4 offers a few additional capabilities that enhance its overall functionality. These include a built-in circuit breaker for added safety, a ground fault circuit interrupter (GFCI) to protect against electrical shocks, and an LED indicator light to signal when the unit is actively protecting your devices.

Design and Build Quality: Durability and Aesthetics

The Tripp Lite ISOBAR4 is built with durability in mind. Its heavy-duty construction and high-quality materials suggest longevity. The surge protector features a robust, black plastic casing, which feels solid and resistant to impact. The angled design allows for easy access to outlets, even when placed in tight spaces. The integrated power cord is thick and well-insulated, minimizing the risk of fraying or damage. However, some users might find the unit’s size and weight a bit cumbersome, especially if portability is a primary concern. While the design isn’t flashy, its practicality and focus on functionality make it suitable for both home and office environments. The overall aesthetic is simple and utilitarian, fitting well with most decor styles. The front panel features clear, easy-to-read LED indicators for power and surge protection status, providing visual reassurance of proper functioning.

Power Protection: Surge Protection and Noise Filtering

The Tripp Lite ISOBAR4 boasts a robust surge protection system designed to safeguard your connected devices from damaging voltage spikes and surges. This surge protection is further enhanced by noise filtering, which helps to minimize electrical interference and ensure optimal performance for sensitive electronics. The ISOBAR4 employs a combination of advanced technologies to effectively filter out noise and protect against surges, including a MOV (Metal Oxide Varistor) and a thermal fuse. The MOV acts as a voltage-limiting device, diverting excess voltage away from your equipment, while the thermal fuse provides an additional safety measure by interrupting the power flow in case of excessive heat. The result is a reliable and dependable power protection solution that can help to extend the lifespan of your valuable electronics and ensure their consistent performance.

Connectivity and Features: Outlets and Additional Capabilities

The Tripp Lite ISOBAR4 boasts a generous selection of outlets, providing ample connectivity for various devices. It offers a total of four grounded AC outlets, all placed at a convenient 45-degree angle. This thoughtful design minimizes the space occupied by bulky power adapters, allowing you to plug in even the most demanding devices without any hassle.

Beyond its standard AC outlets, the ISOBAR4 includes a dedicated telephone/modem line protection, safeguarding your communications equipment from power surges and electrical interference. This feature is particularly valuable for users who rely on reliable internet and phone connections.

Moreover, the unit features a built-in 15 amp circuit breaker, ensuring additional safety and protection against potential overloads. This thoughtful design feature prevents damage to your connected devices and your home’s electrical system. The presence of a reset button for the circuit breaker allows for easy restoration of power in case of a trip.

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The ISOBAR4’s compact design and lightweight nature make it ideal for various applications, from home office setups to smaller workspaces. Its portability ensures you can easily move it around as needed, providing reliable power protection wherever you go.

Performance: Real-World Testing and Results

To assess the Tripp Lite ISOBAR4‘s real-world performance, we subjected it to a series of tests designed to simulate common household electrical scenarios.

Surge Protection: We used a calibrated surge generator to deliver simulated power surges of varying intensities to the ISOBAR4’s outlets. The unit consistently suppressed the surges, preventing any damage to connected devices. This demonstrated the effectiveness of its surge protection circuitry in safeguarding equipment from sudden voltage spikes.

Noise Filtering: We measured the amount of electromagnetic interference (EMI) and radio frequency interference (RFI) present on the ISOBAR4’s outputs using a spectrum analyzer. The results showed that the unit effectively filtered out noise, ensuring a clean power supply to connected devices. This is crucial for sensitive electronics that can be susceptible to electrical interference.

Power Output: We measured the ISOBAR4’s power output using a calibrated power meter. The unit consistently delivered the rated output power, with no noticeable voltage drops or fluctuations. This ensured that connected devices received the optimal power supply for reliable operation.

Real-World Usage: We connected a variety of devices to the ISOBAR4, including a laptop, a desktop computer, a monitor, a printer, and a smartphone charger. The unit successfully powered all devices simultaneously without any issues. The devices operated smoothly, and we did not observe any performance degradation or instability.

Overall Performance: Our real-world testing showed that the Tripp Lite ISOBAR4 delivered consistently excellent performance. Its surge protection and noise filtering capabilities effectively protected connected devices from electrical hazards and ensured a clean power supply. The unit’s reliable power output and ability to power multiple devices simultaneously make it a practical and dependable choice for various home and office applications.

Pros and Cons: Advantages and Disadvantages

Pros and Cons: Advantages and Disadvantages

The Tripp Lite ISOBAR4 is a solid surge protector with a lot to offer, but it’s not without its shortcomings. Here’s a breakdown of the pros and cons to help you decide if it’s the right fit for your needs:


  • Robust Surge Protection: The ISOBAR4 provides comprehensive surge protection, shielding your connected devices from potentially damaging power surges. This is crucial for protecting expensive electronics like computers, TVs, and gaming consoles.
  • Noise Filtering: The unit filters out electromagnetic interference (EMI) and radio frequency interference (RFI), ensuring cleaner power for your devices. This can improve performance, especially for audio and video equipment.
  • Durable Construction: Tripp Lite is known for building reliable products, and the ISOBAR4 is no exception. The unit’s sturdy construction and high-quality components suggest it will hold up to regular use for many years.
  • Convenient Outlets: With a variety of outlets, including both standard and angled plugs, the ISOBAR4 can accommodate a wide range of devices. The angled outlets are particularly useful for saving space on tight power strips.
  • Safety Features: The ISOBAR4 features a built-in circuit breaker for added safety. This helps prevent overloads and potential fire hazards.
  • Compact Size: The unit’s relatively small footprint makes it easy to fit on a desktop or behind a TV stand without taking up too much space.


  • Limited Capacity: With only four outlets, the ISOBAR4 might not be enough for users with a large number of devices. Consider if this capacity is sufficient for your needs.
  • No USB Ports: The lack of USB ports can be a drawback for users who need to charge devices directly from the surge protector.
  • Price: While the ISOBAR4 offers good value for the price, it’s on the higher end compared to some basic surge protectors. Consider if the additional features and quality justify the cost.
  • Limited Cable Length: The power cord is relatively short, limiting placement flexibility. This could be an issue if you need to reach a distant outlet.
  • No Battery Backup: The ISOBAR4 does not provide battery backup, meaning your devices will be powered down during a power outage. If you require uninterrupted power, you’ll need a UPS (Uninterruptible Power Supply).

Ultimately, the Tripp Lite ISOBAR4 is a reliable and well-built surge protector that offers solid protection for your valuable electronics. However, its limited capacity and lack of USB ports might be drawbacks for some users. Carefully consider your needs and prioritize the features that matter most to you before making a purchase.

Conclusion: Final Verdict and Recommendations

In conclusion, the Tripp Lite ISOBAR4 proves to be a reliable and versatile surge protector, offering comprehensive protection for your valuable electronics. Its robust construction, advanced surge protection capabilities, and convenient features make it a solid choice for home and office use. The generous number of outlets, including a dedicated phone line and coaxial connection, cater to a wide range of devices. While the price point may be higher than some basic surge protectors, the added features and peace of mind it provides justify the investment.

While the ISOBAR4 excels in most aspects, it’s worth noting that the lack of a built-in battery backup could be a drawback for users seeking complete power outage protection. Additionally, some users might find the size and weight to be slightly bulky. However, these minor drawbacks are outweighed by its overall performance and value.

Ultimately, if you’re looking for a reliable surge protector that offers exceptional protection and a wide range of features, the Tripp Lite ISOBAR4 is a strong contender. Its combination of advanced technology, durability, and user-friendly design makes it a worthy investment for safeguarding your valuable electronics and ensuring their longevity.

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Comparison: Alternatives and Competitors

When considering surge protectors, it’s essential to compare the Tripp Lite ISOBAR4 with other available options. Here are some notable alternatives and competitors:

Belkin 12-Outlet Surge Protector with 1080 Joules of Protection

  • This Belkin surge protector offers a higher joule rating than the ISOBAR4, indicating greater protection against power surges.
  • It features 12 outlets, providing ample connectivity for multiple devices.
  • The Belkin surge protector also includes a built-in 10/100 Ethernet port for network protection.

APC Back-UPS BE700G2

  • The APC Back-UPS BE700G2 is a UPS (Uninterruptible Power Supply) that provides both surge protection and battery backup.
  • It offers 700VA of power, which is sufficient to keep essential devices running during power outages.
  • The BE700G2 includes a USB charging port for convenience.

CyberPower CP1500EPFCLCD

  • The CyberPower CP1500EPFCLCD is another UPS option that provides surge protection and battery backup.
  • It features a higher capacity of 1500VA, suitable for powering more devices for extended periods.
  • The CP1500EPFCLCD also includes a LCD display for monitoring battery status and other parameters.

Choosing the Right Alternative:

The best alternative for you depends on your specific needs and priorities. If you primarily need surge protection, a standalone surge protector like the Belkin 12-Outlet Surge Protector might be sufficient. If you require battery backup, a UPS like the APC Back-UPS BE700G2 or the CyberPower CP1500EPFCLCD is recommended.

Key Considerations:

  • Joule Rating: Higher joule ratings indicate greater surge protection capacity.
  • Number of Outlets: Choose a surge protector with enough outlets for your devices.
  • Additional Features: Consider features like Ethernet protection, USB charging ports, and battery backup.
  • Price: Determine a budget for your surge protector or UPS.

By comparing the Tripp Lite ISOBAR4 to these alternatives, you can make an informed decision about the best power protection solution for your specific requirements.

Frequently Asked Questions (FAQs)

Frequently Asked Questions (FAQs)

Q: Is the Tripp Lite ISOBAR4ULTRA compatible with all devices?

A: The ISOBAR4ULTRA is designed to work with a wide range of electronic devices, including computers, TVs, gaming consoles, and home theater systems. However, it’s important to check the power requirements of your specific devices to ensure compatibility. The ISOBAR4ULTRA has a maximum power rating of 1875 watts, so make sure your total connected load doesn’t exceed that limit.

Q: How does the ISOBAR4ULTRA protect my devices from power surges?

A: The ISOBAR4ULTRA employs advanced surge protection technology with MOVs (Metal Oxide Varistors) and a 1080 Joule rating. This means it can handle significant voltage spikes and protect your devices from damage caused by power surges.

Q: Does the ISOBAR4ULTRA filter out noise from the power line?

A: Yes, the ISOBAR4ULTRA incorporates EMI/RFI (Electromagnetic Interference/Radio Frequency Interference) filtering to reduce noise on the power line. This helps improve the performance of sensitive electronic devices by minimizing potential interference.

Q: How many outlets does the ISOBAR4ULTRA have?

A: The ISOBAR4ULTRA comes with four standard 3-prong AC outlets. It also features a right-angle design, allowing you to plug in devices even in tight spaces.

Q: Can I use the ISOBAR4ULTRA with a UPS (Uninterruptible Power Supply)?

A: Yes, you can use the ISOBAR4ULTRA with a UPS. In fact, combining the surge protection of the ISOBAR4ULTRA with the battery backup of a UPS provides comprehensive power protection for your critical devices.

Q: Is the ISOBAR4ULTRA easy to install?

A: The ISOBAR4ULTRA is simple to set up. Just plug it into a standard wall outlet and connect your devices to the available outlets. No special installation or configuration is required.

Q: Is the ISOBAR4ULTRA backed by a warranty?

A: Yes, the ISOBAR4ULTRA comes with a limited lifetime warranty. This ensures that you’re covered in case of any defects or malfunctions.

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Q: What are the dimensions of the ISOBAR4ULTRA?

A: The ISOBAR4ULTRA measures 4.5 inches in width, 3.5 inches in height, and 2.5 inches in depth. It’s a compact and space-saving device that can easily fit into various setups.

Overall, the Tripp Lite ISOBAR4 is a solid surge protector that offers reliable protection for your valuable electronics. While it may not have all the bells and whistles of some newer models, it’s a tried-and-true option that has been trusted by users for years. The combination of surge protection, noise filtering, and multiple outlets makes it a great choice for anyone looking to protect their equipment from power surges and fluctuations.

One of the biggest advantages of the ISOBAR4 is its compact size and portability. It doesn’t take up much space on your desk or in your bag, making it ideal for use at home, in the office, or on the go. Its robust construction and high-quality materials ensure that it can withstand the rigors of everyday use.

Another key feature of the ISOBAR4 is its affordability. Compared to other surge protectors with similar features, it’s a great value for the money. While it may not have the same level of protection as some premium models, it still offers a reliable and affordable solution for most users.

If you’re looking for a reliable and affordable surge protector, the Tripp Lite ISOBAR4 is a great option. It may not have all the latest features, but it’s a solid choice that delivers on its promises of protection and performance.


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