Best Surge Protector Under £100
Protecting your electronics from power spikes doesn't have to cost a fortune. We have analysed the best surge protectors under £100, focusing on joule ratings, number of outlets, and build quality to keep your gear safe.
Quick answer
The best surge protector under £100 is the Belkin 12-Outlet PivotPlug BP112230-08 for its high 4,320-joule rating, wide outlet spacing, and robust warranty. For a budget pick, the APC SurgeArrest P11U2 offers solid protection and USB ports at a lower price point.
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Research updated June 2026.
Belkin 12-Outlet PivotPlug BP112230-08
High joule rating and rotating outlets for bulky adapters.
| Product | Best For | Joule Rating | Rating | Price |
|---|---|---|---|---|
| Belkin 12-Outlet PivotPlug | Overall / High Protection | 4,320 J | 4.7/5 | Check price |
| APC SurgeArrest P11U2 | Budget / USB Charging | 2,880 J | 4.5/5 | Check price |
| TP-Link Kasa Smart Plug Power Strip | Smart Home / Remote Control | 2,160 J | 4.4/5 | Check price |
| Anker PowerExtend 12 | Compact Design / Travel | 2,400 J | 4.6/5 | Check price |
| Tripp Lite Protect It 12-Outlet | Home Theater / Coaxial Protection | 3,600 J | 4.5/5 | Check price |
Belkin 12-Outlet PivotPlug BP112230-08
Best OverallPros
- Very high 4,320-joule rating
- Rotating outlets for large adapters
- 8-foot heavy-duty cord
Cons
- Bulky design
- USB ports are not fast charging
The Belkin 12-Outlet PivotPlug is a powerhouse for home entertainment systems or home offices. Its 4,320-joule rating is among the highest in this price range, meaning it can absorb multiple surges before failing. The rotating outlet design is a standout feature, allowing you to plug in bulky power adapters without blocking adjacent sockets.
Owner reviews consistently praise its build quality and the lifetime warranty that covers connected equipment. The only downsides are its large footprint and the USB ports, which are standard 2.4A rather than USB-C fast charging. For pure surge protection and outlet capacity, it is the best value under £100.
APC SurgeArrest P11U2
Best BudgetPros
- Excellent value for money
- Reliable brand with good warranty
- USB ports included
Cons
- Lower joule rating than Belkin
- Outlets are closely spaced
The APC SurgeArrest P11U2 is a classic choice for those who want solid protection without breaking the bank. With 2,880 joules of protection and 11 outlets, it is more than adequate for a home office or bedroom setup. The two USB ports are a convenient addition for charging phones and tablets.
APC is a trusted name in power protection, and this model comes with a lifetime warranty and a connected equipment guarantee. Owner reviews highlight its reliability, though some note that the outlets are a bit tight for larger plugs. It is a strong contender for the best surge protector under £100 for budget-conscious buyers.
TP-Link Kasa Smart Plug Power Strip
Best SmartPros
- Wi-Fi control via Kasa app
- Voice control with Alexa/Google
- Energy monitoring
Cons
- Lower joule rating
- Fewer outlets than competitors
The TP-Link Kasa Smart Plug Power Strip is for users who want to control their electronics remotely. It has 2,160 joules of protection, which is lower than others on this list, but it makes up for it with smart features. You can turn outlets on and off via the Kasa app, set schedules, and monitor energy usage.
It works with Amazon Alexa and Google Assistant for voice control. Owner reviews are positive about the app reliability and ease of setup. The trade-off is fewer outlets and a lower surge rating, so it is best for low-power devices like lamps and phone chargers rather than a home theater system.
Anker PowerExtend 12
Best CompactPros
- Compact and travel-friendly
- 12 outlets in a small form
- Anker reliability
Cons
- Short 5-foot cord
- No USB-C ports
The Anker PowerExtend 12 is designed for those who need many outlets in a small space. It packs 12 outlets and 2 USB ports into a compact strip that is easy to pack for travel or use on a desk. The 2,400-joule rating is decent for everyday electronics like laptops and monitors.
Anker is known for quality accessories, and this strip is no exception. Owner reviews appreciate the space-saving design and the fact that outlets are spaced to fit larger plugs. The main drawbacks are the short 5-foot cord and the lack of USB-C fast charging. It is a great choice for a desk or bedside table.
Tripp Lite Protect It 12-Outlet
Best for Home TheaterPros
- Coaxial and phone line protection
- High 3,600-joule rating
- Diagnostic LEDs
Cons
- Bulky and heavy
- No USB-C
The Tripp Lite Protect It 12-Outlet is built for home theater setups that need protection for coaxial and phone lines. It offers 3,600 joules of protection and includes jacks for cable TV and telephone lines, which is rare at this price. The diagnostic LEDs indicate when protection is active and when grounding is proper.
Owner reviews highlight its robust build and the peace of mind from protecting not just power but also signal lines. The downsides are its size and weight, which make it less portable. For a home theater system with a TV, cable box, and gaming console, this is a top pick.
What to check before buying a surge protector
Joule rating is the most important specification. A higher joule rating means the protector can absorb more energy before failing. For under £100, look for at least 2,000 joules for basic protection, and 3,000+ for expensive electronics. Clamping voltage is also key; a lower clamping voltage (under 400V) provides faster protection.
Number of outlets and spacing matter. Consider what you will plug in. Bulky power adapters need widely spaced outlets. USB ports are convenient but often slower than dedicated chargers. Check the cord length to ensure it reaches your outlet without needing an extension cord, which can reduce surge protection effectiveness.
Mistakes to avoid
Do not daisy-chain surge protectors. Plugging one surge protector into another can overload the circuit and create a fire risk. Always plug your surge protector directly into a wall outlet. Also, avoid using a surge protector for high-power appliances like space heaters or refrigerators, as they can exceed the protector's rating.
Another common mistake is ignoring the indicator light. Most surge protectors have an LED that shows protection is active. If this light goes out, the internal components are worn out and the device is just a power strip. Replace it immediately. Finally, do not buy a surge protector based solely on price; a cheap unit may have a low joule rating and poor build quality.
FAQs
What does a joule rating mean on a surge protector?
A joule rating indicates how much energy the surge protector can absorb before it fails. A higher rating means better protection and a longer lifespan.
Can I plug a surge protector into an extension cord?
It is not recommended because extension cords can reduce the effectiveness of surge protection and may cause overheating. Always plug directly into a wall outlet.
How often should I replace a surge protector?
Replace it every 2-3 years or immediately if the protection indicator light goes out. Large surges can also degrade the internal components.
Do I need a surge protector for a PC?
Yes, a PC is sensitive to power spikes that can damage the power supply and motherboard. A surge protector with at least 2,000 joules is recommended.
What is clamping voltage?
Clamping voltage is the voltage at which the surge protector starts to divert excess energy. Lower clamping voltage (under 400V) provides faster protection.
Can a surge protector protect against lightning strikes?
No surge protector can fully protect against a direct lightning strike. They are designed for smaller power surges from the grid or appliances.
What is the difference between a power strip and a surge protector?
A power strip only adds extra outlets, while a surge protector has internal components that absorb excess voltage to protect connected devices.
Are USB ports on surge protectors safe?
Yes, they are safe for charging phones and tablets, but they typically provide standard 2.4A charging, not fast charging speeds.
How many outlets do I need in a surge protector?
For a home office or entertainment center, 8-12 outlets are typical. Consider the size of your power adapters when choosing spacing.
Does a surge protector work with a UPS?
Yes, you can plug a surge protector into a UPS, but it is usually unnecessary as most UPS units have built-in surge protection.
What does a lifetime warranty cover on a surge protector?
It typically covers defects in materials and workmanship. Some brands also offer a connected equipment guarantee, which reimburses you if your devices are damaged.
Can I use a surge protector in a bathroom?
No, surge protectors are not rated for damp or wet locations. Use a GFCI outlet in bathrooms instead.
Our verdict
The best surge protector under £100 is the Belkin 12-Outlet PivotPlug BP112230-08 for its high 4,320-joule rating and rotating outlets. For a budget-friendly option that still offers solid protection, the APC SurgeArrest P11U2 is the best choice.