3kVA Continuous Transformer Hire London
Step down 230–240V mains to 110V CTE supply for continuous-duty site use. Designed for tools and equipment that run for extended periods — lighting rigs, heaters, extended drilling and refurb work. Greenford UB6 collection or London kerbside delivery by booking.
- 3kVA Continuous
- 240V → 110V
- ✓ CTE-Rated
- Site-Ready
- London Delivery
- Greenford UB6
What is a 3kVA continuous transformer?
Hireload offers 3kVA continuous transformer hire in London — collection from Greenford UB6 or kerbside delivery across all boroughs. A continuous duty transformer is rated to deliver its full 3kVA output indefinitely without overheating — unlike standard (intermittent) site transformers which need rest periods at full load. This makes it the right choice when equipment will run for extended periods: 110V lighting rigs on all-day jobs, fan heaters during overnight drying, or sustained power tool use across a full workday. It converts your standard 230–240V mains supply to 110V CTE (centre-tapped to earth) — the safe site voltage for construction tools across the UK. If your tools or lights will run for long stretches without breaks, this is the transformer to hire. If in doubt about which size or duty rating suits your job, call us before booking.
This page is designed for customers looking for 3kVA transformer hire London, 110V transformer hire London or 240V to 110V transformer hire for site tools, lighting and longer-duration electrical work.
What can a 3kVA continuous transformer power?
Typical tools and equipment — always check nameplate wattage and do not exceed the transformer rating. Combined load must stay within 3kVA.
✓ Good fit
Typical draw ~150–500W per fitting — continuous transformer ideal for all-day lighting. Check lamp type.
Check nameplate
Typical draw ~1,200–2,000W. One at a time within rating — check combined load if running multiple tools.
✓ Typical fit
Typical draw ~700–1,100W. Check nameplate — continuous rating suits sustained drilling sessions.
May use full rating
A 3kW heater typically uses the full transformer capacity alone. Do not run other loads simultaneously. Continuous duty essential for heaters.
✓ Low draw
Typical draw ~600–1,000W. Often possible to run one or two within rating — confirm wattage and check combined load.
✓ Good fit
Typical draw ~300–700W. Continuous transformer suits overnight or extended drying jobs. Check unit nameplate.
Check nameplate
Typical draw ~1,200–1,800W. Keep within rating — do not run with other high-draw tools.
Confirm before booking
Typical draw ~700–1,200W. Start-up surge can be high — confirm total load and call us if unsure.
Hire snapshot
Verified from the live product listing. Technical configuration may vary by unit supplied — confirm before booking. For 3kVA site transformer hire, always confirm plug and socket compatibility before booking.
| Feature | Detail | Notes |
|---|---|---|
| Input voltage | 230–240V AC, single phase | Standard UK mains supply |
| Output voltage | 110V AC, CTE (centre-tapped to earth) | UK standard site safety voltage |
| Capacity | 3 kVA class | Do not exceed transformer rating |
| Duty rating | Continuous | Rated for sustained full-load operation — no mandatory rest period at rated load |
| Sockets / outlets | Confirm before booking | Configuration may vary by unit supplied |
| Plug type (input) | Confirm before booking | Typically 13A or 16A — verify before booking |
| Portability | Portable with carrying handle | Heavier than a plug adaptor — manageable for one person over short distances |
| Outdoor use | Keep covered / sheltered | Not verified weatherproof — keep away from standing water and direct rain |
| Collection | Greenford UB6 | Self-collection available — confirm availability when booking |
| Delivery | London kerbside, all boroughs | Scheduled delivery slot — confirm at booking |
Best for these jobs
The continuous duty rating is what sets this transformer apart — it suits jobs where equipment runs for extended periods.
All-day lighting rigs
Running 110V tripod site lights for a full shift — continuous duty ensures the transformer does not overheat during extended operation.
110V fan heaters
Heaters run continuously for hours. A continuous-rated transformer is essential — an intermittent transformer will overheat under sustained heater load.
Refurb and fit-out
Multiple trades working across a full day with sustained tool use — continuous duty provides reliable, stable site power throughout.
Extended drying jobs
Running a 110V dehumidifier or air mover overnight or across a multi-day drying programme — sustained output without interruption.
Sustained power tool use
Long drilling, grinding or cutting sessions where tools operate with minimal rest — continuous rating keeps output stable throughout.
Add-on to 110V equipment hire
Hiring 110V tools or lights from Hireload? Add this transformer at checkout if only 240V mains is available on site.
When a different option may be better
Check these before booking — a different product may be a better fit.
High combined load above 3kVA
Multiple high-draw tools running simultaneously may exceed 3kVA. Consider the 5kVA transformer for larger loads.
240V tools and equipment
This transformer outputs 110V only. Standard 240V tools plug directly into mains — no transformer needed. Call us if unsure about your tool’s voltage.
Large site with many simultaneous loads
Multiple trades requiring sustained high-draw power simultaneously may need a higher-kVA transformer or a site distribution setup. Call to discuss.
Exposed outdoor use in heavy rain
This unit is not verified weatherproof. Outdoor use should be under cover, away from standing water. Keep ventilation clear.
Match your equipment to the right transformer
Use as a starting guide — always confirm combined wattage and call us if your load is near the limit.
| Your equipment | Recommended | Why | Check before booking |
|---|---|---|---|
| Single 110V tool, short use | 3kVA site transformer | Standard transformer fine for brief, intermittent tool use | Wattage, duty cycle of use |
| Single 110V tool, long use | 3kVA continuous transformer (this product) | Continuous duty prevents overheating on extended sessions | Wattage within 3kVA rating |
| 110V site lights all day | 3kVA continuous transformer (this product) | Lights run continuously — continuous duty rating essential | Combined lamp wattage, check socket type |
| 110V fan heater | 3kVA continuous transformer (this product) | 3kW heater runs at full load continuously — intermittent transformer will overheat | Heater wattage; do not run other loads simultaneously |
| Multiple tools simultaneously | 5kVA transformer | Combined load may exceed 3kVA — larger transformer provides headroom | Total combined wattage of all tools |
| 110V dehumidifier / air mover | 3kVA continuous transformer (this product) | Continuous duty suits overnight or multi-hour drying runs | Unit wattage, confirm socket type |
Continuous transformer vs standard site transformer
Both convert 240V to 110V CTE — the key difference is how long they can sustain full load.
3kVA Continuous (this product)
- Designed to deliver full 3kVA load indefinitely
- No mandatory cool-down period at rated load
- Ideal for lighting rigs, heaters, extended task work
- Better thermal tolerance for sustained site conditions
- Right choice when equipment runs for hours without stopping
- Suited for overnight or multi-day jobs
✓ Choose this for extended, sustained load use
Standard 3kVA Site Transformer
- Converts 240V to 110V CTE — same output voltage
- Suitable for most typical tool-hire jobs
- Rated for intermittent / normal site duty cycles
- Fine when tools have natural rest periods during use
- Often lower cost for occasional or short-session hire
- Not recommended for heaters or continuous lighting rigs
→ Choose this for typical intermittent tool use
Safety checklist before you start
Review before connecting equipment. If you need 110V tool transformer hire for drills, grinders, heaters or lighting, check combined wattage before use. If in doubt, call Hireload before booking.
Read the nameplate on every tool before connecting. Add up total watts. Do not exceed 3kVA (approximately 3,000W).
Check your tools and leads have the correct 110V CTE plug and socket. Confirm configuration before booking.
Position the transformer on a dry, stable surface. Keep away from puddles, spray and standing water at all times.
Do not block ventilation slots or enclose the transformer. Allow adequate airflow, especially on long-duration jobs.
Use 110V site-rated extension leads where required. Do not use domestic extension leads for site power distribution.
Never exceed the 3kVA transformer rating. Running a 3kW heater plus other tools simultaneously will overload the unit.
Always follow your site’s electrical safety procedures. If a site supervisor is present, confirm with them before connecting.
Not sure if your equipment is compatible? Call 020 3375 4048 — we can advise the safest option before booking.
Common mistakes to avoid
These come up regularly — check each one before connecting your equipment.
✗ Adding a heater to a loaded transformer
A 3kW fan heater alone uses the full transformer rating. Never plug one in alongside other running tools — the combined load will exceed 3kVA.
✗ Using domestic extension leads
Domestic extension leads are not rated for sustained site current. Use 110V site-rated leads with correct plugs for all 110V connections.
✗ Assuming all tools are 110V
Some tools are 240V only. Check the nameplate before connecting. Plugging a 240V tool into a 110V supply will not work and may damage equipment.
✗ Covering or enclosing the transformer
Continuous operation generates heat. Blocking ventilation slots or placing the transformer in an enclosed space risks overheating. Keep it in open air.
✗ Placing near water or wet surfaces
This transformer is not verified waterproof. Keep it dry, on a stable raised surface, and away from water spray, puddles and condensation.
✗ Not checking socket compatibility first
110V CTE sockets differ from standard plugs. Confirm your leads and tools have the correct 110V plugs before arriving on site.
What affects transformer hire cost?
Live pricing on the product page. Use this to plan your enquiry.
Hire duration
Daily, weekend and weekly rates differ. Longer hires may qualify for project pricing — ask when booking.
Delivery vs collection
Greenford UB6 self-collection is typically the simplest low-cost option. London kerbside delivery available by booking slot.
Transformer size
If your load requires a 5kVA continuous transformer instead of 3kVA, pricing will differ — confirm total load before booking.
Combined hire
Hiring 110V tools or lights at the same time? Add the transformer at checkout for a single booking across all equipment.
Unsure about cost?
Call 020 3375 4048 or email info@hireload.co.uk — we can confirm pricing, availability and delivery for your specific job.
What to hire with a 3kVA continuous transformer
All URLs verified live. Use only with equipment rated for 110V CTE supply — check wattage and socket type before booking.
3kVA 110V Site Transformer
Standard-duty 110V site transformer — for typical intermittent tool hire use.
View product →
5kVA 110V Site Transformer
Higher capacity — when combined load may exceed 3kVA. Multiple tools or heavier equipment.
View product →
110V Tripod Site Light Hire
30W 110V tripod site light — ideal continuous-duty pairing for all-day site lighting.
View product →
Twin-Head Tripod Floodlight Hire
Twin-head floodlight for larger site lighting — check combined wattage before booking.
View product →
110V Fan Heater Hire (3kW / 32A)
110V fan heater — continuous transformer essential for sustained heating. Do not run with other loads.
View product →
Browse All Site Lighting
Full range of 110V site lighting available from Hireload — London delivery and Greenford collection.
Browse lighting →
Frequently asked questions
30 questions — answers based on verified product information. Call us for anything not covered here.
Can I hire a 3kVA continuous transformer in London?
Yes. Hireload offers 3kVA continuous transformer hire and site power transformer hire across all London boroughs. London kerbside delivery is available by booking, and self-collection from Greenford UB6 is also available. Check live availability and pricing on the product page.
What is a 3kVA continuous transformer?
A 3kVA continuous transformer is a step-down transformer rated to deliver 3 kVA of electrical load indefinitely at its 110V output without overheating. It converts standard 230–240V mains supply to 110V CTE (centre-tapped to earth) — the UK site safety voltage. The “continuous” rating is the key difference from standard or intermittent-rated transformers.
What does continuous transformer mean?
Continuous means the transformer is designed to sustain its full rated load without a mandatory rest or cool-down period. Standard (intermittent-rated) transformers are designed for duty cycles where the load varies or equipment has natural rest periods. Continuous is the right choice when equipment runs for long stretches — lighting rigs, heaters, extended drying runs.
Is this different from a standard 3kVA site transformer?
Yes. Both convert 240V to 110V CTE and have the same 3kVA capacity. The difference is duty rating. A continuous transformer can sustain full load indefinitely. A standard (intermittent) transformer needs rest periods at full load and may overheat if run continuously. For heaters, lighting rigs and extended use, choose the continuous-rated version.
Does it convert 240V to 110V?
Yes. It steps down 230–240V single-phase AC mains supply to 110V AC output. This is the standard conversion for UK construction site use, where 110V CTE is the required safety voltage for site tools and equipment.
What does CTE mean?
CTE stands for Centre-Tapped Earth. CTE transformers are commonly used for reduced-voltage 110V site power on UK construction sites. The centre-tapped secondary winding is connected to earth — this arrangement is why 110V CTE is widely used for site tool power across the UK. Confirm the exact unit specification before booking.
What tools can I run from a 3kVA transformer?
Common 110V site tools that typically run within a 3kVA rating include: SDS drills (typically ~700–1,100W), combi drills (~600–1,000W), angle grinders (~1,200–2,000W), and small concrete mixers (~700–1,200W). Always check the nameplate wattage on every tool. Add up the combined wattage of everything you want to run simultaneously — it must stay below 3,000W (approximately 3kVA). If unsure, call us.
Can I use it for 110V site lights?
Yes — and this is one of the best applications for a continuous transformer. Site lighting runs all day, which makes the continuous duty rating important. Check the wattage of your lights (typically ~150–500W per fitting) and ensure the combined load stays within the 3kVA rating. Verify socket and plug compatibility before booking.
Can I use it for 110V power tools?
Yes, as long as each tool is rated for for 110V CTE and the combined wattage stays within 3kVA. Check every tool’s nameplate wattage, confirm it has the correct 110V plug, and ensure total simultaneous load does not exceed the transformer rating.
Can I use it for a 110V fan heater?
Yes, but a 3kW fan heater will typically use the full 3kVA transformer capacity on its own. Do not run any other loads( simultaneously. The continuous duty rating is essential for heaters — an intermittent-rated transformer will overheat. Check the heater’s wattage and socket type before booking.
Can it power multiple tools at once?
Yes, if the combined wattage of all tools running simultaneously stays within the 3kVA rating (approximately 3,000W). For example, two lower-draw tools totalling ~1,500W is fine; a high-draw angle grinder plus a drill may push close to the limit. Always check nameplates and add up the total before connecting. If your combined load is uncertain or near the limit, consider the 5kVA transformer.
What does 3kVA mean?
kVA stands for kilovolt-amperes — it is a measure of electrical apparent power. At typical site power factor conditions, 3kVA is approximately equivalent to 3,000W (3kW). Use 3,000W as your working guide when checking whether your tools’ combined wattage fits within the transformer’s capacity.
Is 3kVA the same as 3000W?
Approximately yes, for most practical site purposes. The exact relationship depends on power factor, but for planning purposes you can treat 3kVA as approximately 3,000W when checking whether your tools’ nameplate wattage falls within the transformer rating.
Do I need 16A or 32A?
The product listing references a 16A transformer. The input connector type (16A or 32A) determines which mains socket it plugs into. Confirm the input plug configuration with us before booking — the configuration may vary by unit supplied. Also confirm your site has the correct input socket available.
How do I check plug compatibility?
110V CTE tools use a distinctive yellow plug with a round earth pin, typically 16A (round 3-pin) or 32A (larger round 3-pin). Check that your tools use this plug type. If you are unsure, bring a tool to collection or describe the plug to us — we can advise before you book.
Can I use it outdoors?
The transformer can be positioned outdoors on site, but it must be kept covered and sheltered from direct rain and standing water. It is not verified weatherproof. Use it under a canopy, in a dry sheltered position, on a raised stable surface. Keep ventilation clear. If in doubt about outdoor suitability for your specific use, call us before booking.
Is it waterproof?
No verified waterproof or IP rating has been confirmed for this unit — we do not claim waterproofing. Keep it covered and dry. Do not leave it exposed to direct rain, spray or standing water. For outdoor use, always position it under shelter and on a raised dry surface.
Can it be used in rain?
Not in direct rain without cover. Position the transformer under a covered area — a canopy, temporary shelter or inside a dry building section. Never allow rain to fall directly onto the transformer or connected leads. Keep all connections dry.
Can I use it with a generator?
Possibly — but you need to confirm compatibility before connecting. If your generator outputs stable 230–240V AC single phase at a suitable amperage, the transformer can be powered from it. Check the generator’s output specification and the transformer’s input requirements. If your generator already has 110V CTE outlets, you may not need a separate transformer at all. Call us to confirm before booking.
What is the difference between a transformer and a generator?
A transformer converts voltage — it takes existing mains power (or generator output) and steps it down from 240V to 110V. It does not generate electricity. A generator produces electricity from an engine (petrol, diesel or LPG). A transformer needs an existing 240V power source to work. If you have no mains power on site, you need a generator first — then potentially a transformer if your tools require 110V.
Do I need an extension lead?
Possibly, depending on site layout. If your 110V tools or lights are positioned away from the transformer, you will need a 110V site-rated extension lead. Do not use domestic 240V extension leads with 110V equipment. Confirm lead length and socket type requirements before arriving on site.
Can I use normal domestic extension leads?
No. Domestic extension leads are 240V and use standard 3-pin plugs — they are incompatible with 110V CTE sockets and are not rated for site current distribution. Use 110V site-rated extension leads with the correct yellow round-pin connectors for all 110V equipment.
What safety checks should I do before connecting?
Before connecting: (1) Check every tool’s nameplate wattage. (2) Add up total wattage — must stay within 3kVA. (3) Confirm all tools have the correct 110V CTE plug. (4) Position the transformer on a dry, stable surface away from water. (5) Keep ventilation slots clear. (6) Use 110V site-rated extension leads only. (7) Follow your site’s electrical safety rules. If any check fails, do not connect — call us first.
Can I collect from Greenford UB6?
Yes. Hireload’s depot is in Greenford UB6. Self-collection is available — confirm availability and your collection slot when booking. Collection is typically the simplest and quickest option if you can transport the unit yourself.
Do you deliver in London?
Yes. Hireload delivers across all London boroughs. Delivery is kerbside — to the nearest safe point for the vehicle. Delivery slots are scheduled at booking. Check the product page for current availability and pricing, or call 020 3375 4048 to confirm a slot.
How much does it cost to hire?
Live pricing is shown on the product page (from £4.20 + VAT for short hires). For longer hire periods or project pricing, call 020 3375 4048 or email info@hireload.co.uk.
How do I book?
Add the transformer to your cart on this product page and choose your delivery or collection date. Alternatively, call 020 3375 4048 or email info@hireload.co.uk to book directly and confirm availability. If you are also hiring 110V tools or lights, add this transformer at checkout for a single booking.
What should I hire with this transformer?
Depending on your job: 110V site lights (tripod site light or twin-head floodlight for all-day lighting), 110V fan heater (for continuous heating — transformer used at full capacity), or the 5kVA transformer if your combined tool load may exceed 3kVA. Browse the related products section above for verified live links, or call us to plan the right equipment combination for your job.
What if I am not sure my equipment is compatible?
Call 020 3375 4048 or email info@hireload.co.uk before booking. Tell us what equipment you want to run — the wattage, voltage and plug type if known — and we can confirm suitability. Do not connect equipment you are unsure about. Getting it wrong wastes time on site and risks equipment damage.
Why hire a transformer instead of buying?
Hiring avoids the upfront purchase cost, storage between jobs and the commitment to a single unit when your power requirements may vary. For one-off jobs, refurb projects or occasional site use, hiring is typically more cost-effective than buying. You also get the correct transformer size for each job rather than compromising with one owned unit.
3kVA Continuous Transformer Hire London
Greenford UB6 collection or London delivery by booking.
Site power transformer hire — continuous duty, 240V to 110V, built for extended site use.
110V site power
Tools & lighting
Greenford UB6
London delivery
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