Surge Protectors Price Comparison
Compare 270 surge protectors from Belkin, APC, Phoenix Contact and more — find the best price across top UK retailers in one place.
Surge Protectors price comparison UK
Surge protectors sit at the unglamorous end of home and office electronics — until a voltage spike fries your TV or gaming PC, at which point you wish you'd spent a little more than a fiver on a basic extension lead. Our catalogue covers 270 products, from budget-friendly desktop strips starting at 15 £ to industrial-grade DIN-rail units pushing well past 24 £, and the spread tells an interesting story about who actually buys these things.
Belkin and APC dominate the consumer end of the market, and for good reason: both brands offer solid Metal Oxide Varistor (MOV) protection, clear indicator LEDs, and the kind of warranty that actually means something. Belkin in particular has a strong presence at Currys and Amazon.co.uk, making price comparisons worthwhile — we regularly see the same model vary by several pounds between retailers. APC tends to pitch slightly lower on price while matching Belkin on joule ratings, which makes it a strong contender for home office setups.
Phoenix Contact is the dominant brand by sheer product count, but it's a different beast entirely — their range is aimed squarely at industrial and commercial installations, with units rated up to 690V for panel mounting. If you're kitting out a server room or protecting industrial control equipment, that's where to look. For everyone else, it's largely irrelevant. Similarly, DEHN's seven products average well above 15 £, reflecting their professional-grade positioning.
At the affordable end, Brennenstuhl and connektgear offer decent circuit protection for everyday use — multiple sockets, 2m cords, and basic surge suppression that handles the typical spikes from switching appliances on and off. Kenable and Cablenet sit even lower, averaging around 15 £, though their joule ratings tend to reflect the price. For anything you'd genuinely miss — a NAS drive, a high-end monitor, AV equipment — we'd push you towards the mid-range.
One feature worth paying attention to in 2026 is integrated USB charging: models with dual 3.1A USB-A ports (like the Masterplug SRGDSU62PW) let you ditch the wall adapters cluttering your sockets. Individually switched outlets are another underrated feature — they let you cut phantom load from devices left on standby, which adds up over a year. For a broader view of home electrical safety, our safety fuses and voltage regulators categories cover complementary protection options worth considering alongside a surge protector.
How to Choose the Right Surge Protector
Most people buy a surge protector the same way they buy a phone case — quickly, cheaply, and without much thought. That's a mistake when the device on the other end costs ten times more. The market runs from basic 4-socket strips to multi-stage industrial units, and the difference in actual protection is enormous. Here's what separates a genuinely useful surge protector from one that's little more than a glorified extension lead.
Joule Rating: the number that actually matters
The joule rating tells you how much energy the protector can absorb before its MOV components degrade and it stops protecting anything. 600J is the bare minimum for basic electronics; for a home cinema setup, gaming PC, or NAS drive, aim for 1000J or above. The Masterplug ECO-Surge in our catalogue hits 1080J at a very accessible price point — that's a reasonable baseline. If you're protecting professional audio or server equipment, 2000J+ is worth the extra outlay. Be wary of products that don't publish their joule rating at all — that's usually a sign it's embarrassingly low.
Clamping voltage and response time
Two specs that often get buried in the small print. Clamping voltage is the threshold at which the protector kicks in and diverts excess current — lower is better, with 330V being the gold standard for UK 230V systems. Response time (clamping speed) is measured in nanoseconds; anything under 1ns is excellent. Slower protectors (5–10ns) may let a spike reach your equipment before the MOV has a chance to react. Consumer-grade strips rarely publish response times, but premium Belkin and APC models typically specify sub-1ns clamping.
Number of outlets and USB ports for your actual setup
Count the devices you intend to connect, then add two. A 4-way strip fills up faster than you'd expect once you factor in a laptop charger, monitor, desk lamp, and phone charger. Six to eight outlets is the practical sweet spot for a home office or entertainment centre. Integrated USB ports — particularly dual 3.1A ports — are genuinely useful for eliminating wall adapter clutter. USB-C is still rare in this category but worth seeking out if you're charging newer laptops or tablets directly.
Cord length: don't underestimate the reach problem
A 1.5m cord sounds fine until you're trying to reach a socket behind a desk or media unit. 2m is the practical minimum for most setups; 5m cords (available from connektgear and others) give you real flexibility without needing a separate extension lead — which would rather defeat the purpose of a surge-protected strip. Bear in mind that longer cords add a few pounds to the price, but the convenience is usually worth it.
Individually switched outlets vs. master switch
A master on/off switch cuts all power at once — useful, but limited. Individually switched outlets let you power down a printer or games console without disturbing everything else on the strip, and they're the most effective way to eliminate phantom load from standby devices. Some strips offer grouped switching (e.g., two banks of three), which is a reasonable middle ground. If energy efficiency matters to you, this feature pays for itself over time.
Warranty and connected equipment guarantee
A surge protector that fails silently — still passing power but no longer offering any protection — is worse than useless. Look for models with a protection indicator LED that shows the MOV is still functional, and check the warranty terms carefully. Some manufacturers (Belkin notably) offer a connected equipment guarantee, meaning they'll cover damage to devices plugged in if the protector fails to do its job. That's a meaningful commitment. Budget strips typically offer 12 months at best; mid-range models from APC and Belkin often extend to 2–5 years.
- Basic protection on a tight budget (From 15 £ to 15 £) : Entry-level strips from connektgear, kenable, and Cablenet. You get surge suppression — technically — but joule ratings are rarely published and MOV quality is variable. Fine for protecting a lamp or a phone charger, but we wouldn't trust these with anything expensive. Cord lengths are typically 2–5m, outlet counts range from 4 to 6.
- The sweet spot for home and office use (From 15 £ to 15 £) : This is where Belkin, Masterplug, and SMJ sit. You get published joule ratings (typically 600–1080J), indicator LEDs, USB charging ports on some models, and 2m cords as standard. Belkin's BSV series is a reliable choice here, and Brennenstuhl offers solid German-engineered alternatives. The right range for most home offices and entertainment setups.
- For the genuinely protection-conscious (From 15 £ to 24 £) : APC, higher-end Belkin (SRB series), and LogiLink dominate this bracket. Expect higher joule ratings, individually switched outlets, better build quality, and longer warranties. LogiLink's PDU range adds a rack-friendly form factor. Worth the step up if you're protecting a home server, professional audio gear, or a high-value workstation.
- Industrial and professional-grade (Over 24 £) : Phoenix Contact and DEHN own this space. These are DIN-rail mounted units for panel installation, rated for 240V–690V systems, and designed for commercial or industrial environments. Not relevant for home use — but if you're specifying protection for a control cabinet or server room, the engineering quality justifies the price premium significantly.
Top products
- Masterplug ECO-Surge 7-Outlet Surge Protector, 6 ft. Cord, 1080 Joules, 6 Individually Controlled Outlets, Black Housing (Masterplug) : The best-value entry in the entire catalogue — 1080J, individually controlled outlets, and the most price comparisons available. The 6ft cord is a US-standard length which may feel short in some UK setups, but at this price it's hard to argue with.
- Belkin BSV804AF2M surge protector White 8 AC outlet(s) 2 m (Belkin) : Eight outlets, 2m cord, and Belkin's reliable build quality make this the go-to for a home office or entertainment centre. Not the cheapest option, but the brand's connected equipment guarantee adds real peace of mind that budget alternatives simply can't match.
- Belkin BSV603AF2M surge protector White 6 AC outlet(s) 2 m (Belkin) : A leaner six-outlet version of Belkin's BSV range — sensible if you don't need eight sockets and want to keep costs down. Solid everyday protection for a TV setup or small desk. If you regularly run out of sockets, step up to the BSV804 instead.
- Masterplug SRGDSU62PW-MP 6 Gang Surge Protected Socket With 2 x 3.1Amp USB White 2Mtr 6 AC outlet(s) 110 - 125 V 2 m (Masterplug) : The dual 3.1A USB ports are the standout feature here — genuinely fast charging for phones and tablets without sacrificing a socket. Note the 110–125V rating listed in the spec: verify compatibility with your setup before purchasing, as UK standard is 230V.
- connektgear 5m 4 Way Surge Protected Power Extension Block - UK Plug to 4 x UK Sockets - White (connektgear) : The 5m cord is the reason to buy this — it solves the reach problem in larger rooms without needing a separate extension lead. Only four outlets and a modest price point suggest basic MOV protection rather than premium surge suppression, so keep it away from your most valuable kit.
Related categories
Frequently Asked Questions
What joule rating do I actually need for a home office?
For a typical home office, a minimum of 1000J is recommended — enough to handle most power surges from the grid or from switching heavy appliances nearby. If you're protecting a high-end PC, NAS drive, or professional monitor, push to 1500–2000J. The Masterplug ECO-Surge at 1080J is a reasonable baseline at a budget-friendly price, though mid-range Belkin and APC models offer better build quality and longer warranties for not much more.
Is there a difference between a surge protector and a standard extension lead?
Yes — a significant one. A standard extension lead simply distributes power from one socket to several; it offers zero protection against voltage spikes. A surge protector contains Metal Oxide Varistors (MOVs) that absorb excess energy before it reaches your equipment. The problem is that cheap strips sold as "surge protected" sometimes contain MOVs so small they're effectively decorative. Always check the published joule rating — if it's not listed, treat it as a basic extension lead.
Do surge protectors wear out?
Yes, and this is the most overlooked aspect of surge protection. MOV components degrade each time they absorb a surge — after enough events, they stop protecting anything while still passing power normally. A quality surge protector will have an indicator LED that goes out when the MOV has failed. Without that indicator, you have no way of knowing whether you're still protected. This is one of the strongest arguments for spending a bit more on a Belkin or APC model with a functioning status light rather than a cheap strip with no indication at all.
Can I use a UK surge protector with equipment rated for 110V?
No — UK surge protectors are rated for 230V and are not compatible with 110V equipment. Plugging 110V devices (common with American electronics) into a UK surge protector without a voltage converter will damage the equipment. Conversely, some industrial Phoenix Contact units in our catalogue are rated for 690V — these are for specific panel-mounting applications and should never be used in a domestic setting. Always match the nominal voltage of the protector to your regional standard.
Are surge protectors worth it for a TV or games console?
Absolutely — a surge protector is one of the cheapest forms of insurance for expensive electronics. A decent 8-outlet strip with 1000J+ protection costs a fraction of what you'd pay to replace a high-end TV or console after a power surge. UK homes are particularly susceptible to surges caused by nearby lightning strikes and grid switching events. Look for a model with a connected equipment guarantee from the manufacturer — Belkin's warranty terms are among the strongest in the consumer market.
What's the catch with very cheap surge protectors under 15 £?
The main risk is that the surge protection is nominal rather than meaningful. Budget strips in the 15 £–15 £ range often use the smallest, cheapest MOVs available, with joule ratings that may not be published — and for good reason. They'll handle minor fluctuations but offer little defence against a real surge event. They're also less likely to carry a protection indicator, so you won't know when (not if) the MOV has degraded. Use them for low-value devices only, and never for anything you'd be upset to lose.
What does 'clamping voltage' mean, and why does it matter?
Clamping voltage is the threshold at which a surge protector activates and diverts excess current away from your devices. A lower clamping voltage means the protector intervenes earlier, letting less voltage through to your equipment — this is called the 'let-through voltage'. For UK 230V systems, a clamping voltage of 330V is considered best-in-class. Models rated at 500V or 600V still offer protection, but more voltage reaches your equipment before the MOV kicks in. Premium Belkin and APC models typically specify their clamping voltage; budget strips rarely do.