Electrical Enclosures Price Comparison 2026
Compare 211 electrical enclosures from Rittal, Schneider Electric, Legrand and more — find the best price across leading UK retailers.
Electrical enclosures are one of those purchases where getting the specification wrong is genuinely costly — not just in money, but in compliance headaches and rework. Our analysis of 211 products across this category reveals a market dominated by Rittal, which accounts for well over half the catalogue at an average price around 32 £, yet brands like Legrand and Eaton offer competitive alternatives starting from 8 £ for basic applications.
The price spread here is unusually wide. At the lower end, compact polycarbonate or light-gauge steel units sit below 10 £ — adequate for simple indoor installations where IP54 suffices. Step up toward the median and you're into Rittal's core steel range with IP55 or IP66 ratings, the kind of workhorse enclosures that end up in factory floors and plant rooms across the UK. Beyond 44 £, you're looking at large floor-standing cabinets, Phoenix Contact's premium modular systems, or units with integrated thermal management — heat exchangers, thermostat-controlled fans — for demanding industrial environments.
One thing worth flagging: IP rating is the single most misunderstood spec in this category. An IP54 enclosure that gets installed outdoors, or near a wash-down area, is a compliance failure waiting to happen. For anything exposed to jets of water or persistent moisture, IP66 is the minimum — and that's reflected in the Rittal steel range that makes up the bulk of the top-selling products here. If you're working with sensitive electronics or variable-speed drives, EMI shielding via grounded steel construction is equally non-negotiable.
For installers and panel builders sourcing components, it's also worth comparing electrical enclosure accessories alongside the enclosure itself — cable glands, DIN rail, blanking plates, and ventilation filters all add to the final cost. Those fitting out distribution systems may also want to cross-reference electrical distribution boards, where the overlap in application is significant. And for smaller-scale wiring tasks, electrical junction boxes often represent a more proportionate solution than a full enclosure.
Prices across this category shift regularly — Currys, RS Components, and specialist electrical wholesalers all run promotions at different times. Comparing across merchants before committing is straightforward here, and the savings on higher-value Rittal or Phoenix Contact units can be substantial.
How to Choose the Right Electrical Enclosure
With prices ranging from 8 £ to 74 £ and applications spanning domestic consumer units to heavy industrial control panels, choosing an electrical enclosure is rarely straightforward. The wrong IP rating, an undersized footprint, or inadequate thermal management can mean a costly reinstallation — so it pays to get the spec right first time. Here's what actually matters.
IP Rating for the Installation Environment
This is the most critical specification and the one most frequently underestimated. The IP (Ingress Protection) rating — defined under IEC 60529 — tells you how well the enclosure resists dust and water ingress. IP54 is fine for a clean, dry indoor environment. IP55 handles low-pressure water jets, making it suitable for light industrial use. IP66 is the standard for outdoor installations or anywhere subject to heavy wash-down — and it's the rating you'll find on the majority of Rittal's steel range for good reason.
Don't be tempted to save money by under-specifying here. A unit installed in the wrong environment will fail its inspection and may void your insurance. If in doubt, go one rating higher than you think you need.
Material: Steel vs Polycarbonate vs Stainless Steel
Steel (powder-coated) is the default for most industrial applications — it's robust, provides inherent EMI/RFI shielding when properly earthed, and handles mechanical stress well. The vast majority of products in this catalogue are steel, and for good reason. Polycarbonate enclosures are lighter and corrosion-resistant, useful in chemical environments or where weight is a constraint, but they offer no electromagnetic shielding and have lower load capacity.
Stainless steel (304 or 316 grade) is the premium choice for food processing, marine, or pharmaceutical environments where hygiene and corrosion resistance are paramount — expect to pay significantly above 13 £ for these. For most standard panel-building applications, powder-coated steel in RAL 7035 light grey is the industry norm.
Internal Dimensions and DIN Rail Capacity
Undersized enclosures are one of the most common and avoidable mistakes in panel building. Always calculate your DIN rail requirements — including circuit breakers, terminal blocks, contactors, and power supplies — before selecting a size, and add at least 20% headroom for future expansion or cable routing. Compact units (300–500mm height) suit simple applications; standard sizes (600–800mm) cover most industrial control panels; large floor-standing cabinets (900mm+) are needed for complex multi-component systems.
Pay attention to usable internal depth as well — shallow enclosures can make cable management extremely difficult, particularly with larger cable glands or bulky components.
Mounting Configuration
Wall-mounted enclosures dominate this category and suit the majority of installations where floor space is limited. Floor-standing variants — typically above 44 £ — are necessary when component volume is high or when accessibility for maintenance needs to be maximised. Pole-mounted options exist for outdoor distribution applications. Some Rittal and Schneider Electric units also support modular stacking, which is worth considering if your installation is likely to grow.
Thermal Management
Heat is the enemy of electronics, and it's frequently overlooked at the enclosure selection stage. If your enclosure will house variable-speed drives, power supplies, or PLCs, you need to calculate the heat dissipation load and plan accordingly. Passive ventilation (louvres with filters) works for modest loads; filtered fan units are the most common active solution; heat exchangers or air conditioning units are required for high-density installations or where the ambient temperature is already elevated.
The Schneider Electric NSYCR250W230VV in this catalogue is a dedicated enclosure cooling unit — its presence in the top products list reflects genuine demand for thermal management solutions. Budget for this from the outset rather than retrofitting.
Compliance Certifications and Standards
For UK installations, CE marking is the baseline requirement. IEC 60529 governs IP ratings; IEC 61439 applies to low-voltage switchgear and controlgear assemblies. If you're supplying equipment for export to North America, UL listing or NEMA ratings become relevant. Always verify certifications match your project specification — particularly on public sector or infrastructure contracts where third-party inspection is standard. Buying unbranded or uncertified enclosures to save cost at this stage is a false economy.
- Entry-level and light-duty (From 8 £ to 10 £) : Basic polycarbonate or thin-gauge steel enclosures from brands like kenable and Legrand. Suitable for simple indoor wiring tasks, consumer applications, or low-component-count installations. IP ratings typically IP54 or lower. Not recommended for industrial or outdoor use without careful specification checking.
- The workhorse range (From 10 £ to 13 £) : This is where the bulk of Rittal's compact steel range sits, alongside Eaton and Schneider Electric mid-size units. IP55 and IP66 ratings are common. Solid choice for most industrial panel-building applications — good quality, widely stocked, and well-supported by UK electrical wholesalers.
- Mid-to-large industrial enclosures (From 13 £ to 44 £) : Larger Rittal, Hager, and Schneider Electric units, including some with integrated thermal management accessories. Suitable for more complex control panels, multi-DIN-rail layouts, and environments requiring robust ingress protection. Hensel products also appear in this bracket with strong corrosion resistance credentials.
- Premium and floor-standing systems (Over 44 £) : Phoenix Contact modular systems, large Rittal floor-standing cabinets, and specialist enclosures with advanced thermal management or EMI shielding. Designed for demanding industrial environments, large-scale automation, or high-component-density installations. Prices reflect engineering quality and certification depth — not just size.
Top products
- kenable 009728 electrical enclosure IP54 (kenable) : The most-compared product in the category and the most affordable entry point — fine for basic indoor wiring tasks, but IP54 limits its application. Don't use this anywhere near moisture or outdoor exposure.
- Rittal 1512.000 electrical enclosure Steel IP66 (Rittal) : A solid mid-range Rittal steel unit with full IP66 protection — the kind of reliable workhorse that belongs on a factory floor. Not the cheapest, but the build quality and accessory compatibility make it worth comparing across merchants.
- Rittal 1545.000 electrical enclosure Steel IP66 (Rittal) : The most competitively priced IP66 steel Rittal in the top 15 — good value for a fully dust-tight, weatherproof enclosure. Worth checking current merchant prices as this one fluctuates.
- Schneider Electric NSYS3D4315P (Schneider Electric) : A well-specified Schneider unit with strong multi-merchant availability. A credible alternative to Rittal for panel builders who prefer Schneider's ecosystem — compare prices carefully as the spread between merchants can be meaningful.
- Schneider Electric NSYCR250W230VV (Schneider Electric) : Not a standard enclosure but a dedicated enclosure cooling unit — essential if you're housing heat-generating drives or power supplies. Pricier than most in the catalogue, but the alternative (component failure from overheating) costs far more.
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Frequently Asked Questions
What IP rating do I need for an outdoor electrical enclosure?
For outdoor installations, IP66 is the minimum recommended rating. IP66 protects against powerful water jets from any direction, making it suitable for exposed outdoor locations, plant rooms, and industrial environments subject to wash-down. IP54 or IP55 is insufficient for direct outdoor exposure — moisture ingress over time will damage components and create a safety hazard. If the enclosure is submerged or subject to temporary flooding, you'll need IP67 or IP68.
What is the difference between IP55 and IP66 enclosures?
IP55 protects against low-pressure water jets from any direction, whilst IP66 withstands high-pressure, heavy water jets — a meaningful difference in practice. The first digit (5 vs 6) also differs: IP55 offers protection against dust ingress sufficient to prevent harmful deposits, whereas IP66 is fully dust-tight. For most outdoor or industrial wash-down applications, IP66 is the correct choice. IP55 is adequate for light industrial indoor use where occasional splashing is possible but heavy water exposure is not expected.
Is Rittal worth the premium over cheaper alternatives?
For professional panel-building and industrial applications, yes — Rittal's build quality, dimensional consistency, and accessory ecosystem justify the price premium. Their steel enclosures are manufactured to tight tolerances, which matters when fitting DIN rail, mounting plates, and cable management systems. For simple or one-off installations where long-term serviceability isn't a priority, Legrand or Eaton offer solid value at lower price points. We'd avoid unbranded or uncertified units entirely on any installation subject to inspection.
Can I use a standard steel enclosure in a corrosive or chemical environment?
No — standard powder-coated steel will corrode in chemical, marine, or food-processing environments. You need either a polycarbonate enclosure (which resists most chemicals but provides no EMI shielding) or a stainless steel unit (304 or 316 grade depending on the severity of exposure). These are significantly more expensive but the only appropriate choice. Using a standard steel enclosure in a corrosive environment will lead to premature failure and potential safety issues.
What size electrical enclosure do I need for my control panel?
Calculate your DIN rail requirements first: list every component (circuit breakers, contactors, terminal blocks, power supplies, PLCs) and their widths in DIN rail units, then add at least 20–25% headroom. Don't forget to account for cable routing space — a common mistake is selecting an enclosure that fits the components but leaves no room for cable management. Internal depth is equally important; shallow enclosures cause real problems with larger cable glands or bulky components. When in doubt, size up.
Do I need to worry about thermal management in an electrical enclosure?
Yes, if your enclosure houses heat-generating components such as variable-speed drives, power supplies, or PLCs. Heat build-up is one of the leading causes of premature component failure in control panels. Calculate the total heat dissipation (in watts) of all internal components and compare it against the enclosure's thermal capacity. For modest loads, filtered ventilation fans are often sufficient. For high-density installations or warm ambient environments, a dedicated cooling unit or heat exchanger is necessary — retrofitting one later is significantly more expensive than specifying it upfront.
What are the most common mistakes to avoid when buying an electrical enclosure?
The three most costly mistakes are: under-specifying the IP rating for the environment, choosing an enclosure that's too small (no headroom for cables or future components), and ignoring thermal management requirements. A fourth — buying uncertified enclosures to save cost — is particularly problematic on commercial or industrial projects where third-party inspection is required. Always verify CE marking and check that the IP rating is independently tested, not just claimed by the manufacturer.