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Safety Signs Danger High Voltage Sign
A Danger High Voltage sign warns of the electrical voltage present and the risk of shock. It uses the ISO 7010 W012 electricity symbol.
UK mainland delivery £7.95, free on orders over £99. Remote areas are quoted.
- Every file checked before print
- Final price, no VAT added
- Secure card payment by Stripe
- Checked by our Manchester team
Overview
The short answer, then the detail.
A Danger High Voltage sign warns of the electrical voltage present and the risk of shock. It uses the ISO 7010 W012 electricity symbol. Sizes A4 (210 × 297 mm) to A1 (594 × 841 mm) in 3mm Foamex, 3mm Dibond aluminium composite and self-adhesive vinyl. UK mainland delivery £7.95, free over £99; no VAT added.
This Danger High Voltage sign warns of the electrical voltage present and the risk of shock. It is typically used in substations, switch rooms, distribution boards and plant rooms. The design uses a yellow hazard triangle with a bold DANGER message, with the ISO 7010 W012 (Electricity) symbol.
By common convention the word DANGER is kept for hazards that could kill or seriously injure, so it stands out from routine caution signs.
The Health and Safety (Safety Signs and Signals) Regulations 1996 require a safety sign wherever a significant risk remains after other controls, and live electrical equipment is a common example. Keep a note of where each sign is fitted as part of your records.
Danger High Voltage Sign: sizes and materials
Materials: 3mm Foamex (rigid PVC foam board), light and easy to fix indoors or for short-term outdoor use, 3mm Dibond aluminium composite, rigid and weatherproof for long-term outdoor use and self-adhesive vinyl for smooth walls, doors, glass and equipment. Indoors, Foamex or vinyl is usually all you need.
Choosing a size: we allow about 1 metre of viewing distance for every 25mm of sign height, based on the distance-factor method in ISO 3864-1. That gives A4 (210 × 297 mm) (reads at about 8 m), A3 (297 × 420 mm) (reads at about 12 m), A2 (420 × 594 mm) (reads at about 17 m), A1 (594 × 841 mm) (reads at about 24 m).
Where to put it: On the door or enclosure of the electrical equipment.
Artwork, file check and delivery
Every order for a danger high voltage sign gets a free file check by a person before anything is made. Depending on the size and material you choose, we print it in our Manchester workshop or our UK production partner makes it to order. UK mainland delivery is £7.95 per order, free on orders of £99 and over; see delivery for timings and areas. We are not VAT registered, so no VAT is added to the price shown.
More like this: electrical safety signs, or the full safety signs range. Not sure which to choose? Read our guide to safety sign colours.
Prices by size
Popular sizes, smallest first.
| Size | 3mm Foamex | 3mm Dibond aluminium composite | self-adhesive vinyl |
|---|---|---|---|
| A4 · 210 × 297 mm | |||
| A3 · 297 × 420 mm | |||
| A2 · 420 × 594 mm | |||
| A1 · 594 × 841 mm |
Final prices per item with the lowest-priced options. UK delivery £7.95, free on orders over £99. Choose a price to load it into the price calculator.
Specifications
Materials, sizes and finishing for this product.
| ISO 7010 reference | W012 (Electricity) |
|---|---|
| Message | Danger High Voltage |
| Sign type | Danger |
| Materials | 3mm Foamex, 3mm Dibond aluminium composite and self-adhesive vinyl |
| Sizes | A4 (210 × 297 mm), A3 (297 × 420 mm), A2 (420 × 594 mm), A1 (594 × 841 mm) |
| Viewing distance | A4: 8 m, A3: 12 m, A2: 17 m, A1: 24 m |
| Full colour, single sided | |
| Made by | Made to order by InstantBanners, Manchester, in our workshop or by our UK production partner, depending on the option |
| SKU | IB-SAF-119 |
| Price | Final price shown in the configurator. No VAT is added. |
| Delivery | UK mainland £7.95 per order, free on orders of £99 and over. Scottish Highlands +£10; islands and NI quoted. |
| Artwork check | Free file check on uploaded artwork (resolution, size and bleed). |
Which size do I need?
A safety sign must be large enough to read from where people will see it. Our conservative guide, based on the distance-factor method in ISO 3864-1, is about 1 metre of viewing distance for every 25 mm of sign height (the shorter side). Use it with your own risk assessment.
| Size | Readable from up to about |
|---|---|
| A4 (210 × 297 mm) | 8 m |
| A3 (297 × 420 mm) | 12 m |
| A2 (420 × 594 mm) | 17 m |
| A1 (594 × 841 mm) | 24 m |
Well lit or internally lit signs can be read from further away; dim areas need larger signs.
Made to order by InstantBanners, Manchester
InstantBanners is a sign and print shop in Manchester. We check your file will print well. Depending on the size and material you choose, it is printed in our Manchester workshop or made by our UK production partner.
- 01Your artworkUpload your print-ready file, or choose one of our paid design services.
- 02File checkA person checks uploaded files for size, bleed and resolution.
- 03Made to orderPrinted in our Manchester workshop or by our UK production partner, depending on the option, then sent to you.
Frequently asked questions
About danger high voltage sign.
What size Danger High Voltage sign do I need?
Pick the size by how far away people will read it. A4 (210 × 297 mm) reads at about 8 m, A3 (297 × 420 mm) reads at about 12 m, A2 (420 × 594 mm) reads at about 17 m, A1 (594 × 841 mm) reads at about 24 m. These distances are a conservative guide for normal lighting.
Does this sign use an ISO 7010 symbol?
Yes. It uses ISO 7010 W012, Electricity. The pictogram artwork comes from a public domain source and is printed with the "Danger High Voltage" text.
Where should the Danger High Voltage sign go?
On the door or enclosure of the electrical equipment. Keep it clear of anything that could block the view.
Is a Danger High Voltage sign a legal requirement?
The Health and Safety (Safety Signs and Signals) Regulations 1996 require a safety sign wherever a significant risk remains after other controls, and live electrical equipment is a common example. Your own risk assessment decides where signs are needed.
What does the colour of the sign mean?
The yellow triangle warns of a hazard and the word DANGER marks it as serious. This sign follows that layout.
Can I put the Danger High Voltage sign outside?
Yes, in Dibond. Foamex is best kept indoors or in sheltered spots.
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Questions
Buyer questions about this product, answered. Can't see yours? Ask below and our team will reply.
Which sizes can I order the Danger High Voltage Sign in?
The Danger High Voltage Sign comes in 4 listed sizes, from A4 (210 × 297 mm) at £5.28 up to A1 (594 × 841 mm) at £15.91. In between: A3 (297 × 420 mm) and A2 (420 × 594 mm). Prices are the lowest option for each size.
How far away can the Danger High Voltage Sign be read?
Work back from how far away people will be when they need to read it. Using our guide of about 1 m of viewing distance for every 25 mm of sign height: A4 (210 × 297 mm) reads from about 8 m, A3 (297 × 420 mm) reads from about 12 m, A2 (420 × 594 mm) reads from about 17 m and A1 (594 × 841 mm) reads from about 24 m. In poor light, or where people are moving quickly, go a size up. The guide is based on the distance-factor method in ISO 3864-1; use it with your own risk assessment.
Which material should I choose for the Danger High Voltage Sign?
It depends where it goes and for how long: 3mm Dibond aluminium composite is rigid and weatherproof, the one for long-term outdoor use and busy areas. 3mm Foamex is light and smooth, best indoors or in sheltered spots. Self-adhesive vinyl sticks flat to doors, glass and smooth walls.
I do not have artwork. Can you design it for me?
The Artwork choice on this page offers: "I will upload print-ready artwork" (free), "Add my text and logo to a clean layout (typesetting)" (£15), "Design it for me from my brief" (£35), "Redraw or vectorise my logo from a low-res file" (£50) and "Design a new logo for me" (£100). Design fees are fixed, show as their own line in the basket and cover the whole quantity of that item. Typesetting includes 1 proof and 2 rounds of changes; design from your brief includes 1 design and 2 rounds of changes. The Danger High Voltage Sign is printed on 3mm Foamex, 3mm Dibond aluminium composite and self-adhesive vinyl.
How much does the Danger High Voltage Sign cost?
The Danger High Voltage Sign starts from £5.28 with size A4 (210 × 297 mm) and material self-adhesive vinyl on the Saver turnaround. The price in the calculator changes live as you pick the size, material, finishing, quantity and turnaround, so you see the final price before you add to basket. No VAT is added because we are not VAT registered. Delivery is added at checkout: UK mainland delivery is £7.95 per order and free when your goods total is £99 or more after any discount code (artwork and design fees do not count towards it).
Do you charge for delivery?
UK mainland delivery is £7.95 per order and free when your goods total is £99 or more after any discount code (artwork and design fees do not count towards it), so one sign at £5.28 on its own pays £7.95, and the charge disappears once your basket reaches £99. Mainland Scottish Highlands postcodes add £10 once per order. Northern Ireland, the Scottish islands, the Isle of Man, the Channel Islands, the Isles of Scilly and the Isle of Wight are quoted before you order.
How long does the Danger High Voltage Sign take to make?
On the option the calculator opens on, Saver is ready to dispatch in 6 working days, Standard in 4 and Express in 2. These are working days to dispatch, counted from when your order and artwork are confirmed, and other sizes or materials can take a day more or less: the calculator shows the exact days next to each turnaround. Courier delivery usually takes 1 to 3 working days after dispatch, and we email the tracking details when the parcel leaves us. The Danger High Voltage Sign starts at £5.28 before delivery.
What type of sign is the Danger High Voltage Sign?
"Danger High Voltage" is a danger sign, warning of a serious hazard. It carries the ISO 7010 W012 symbol (electricity), so people understand it even if they do not read English. The colours and shapes follow the scheme set out in the Health and Safety (Safety Signs and Signals) Regulations 1996.
Can I get the Danger High Voltage Sign as a sticker?
Yes. Choose self-adhesive vinyl in the material options and the sign arrives as a sticker to peel and apply. It suits doors, glass, machines, cupboards and smooth painted walls, where a board would be awkward to fix. Clean and dry the surface first and smooth it on from the middle outwards. For rough or dusty surfaces, choose a board instead.
How thick is the Danger High Voltage Sign?
The board options are 3mm Foamex and 3mm Dibond aluminium composite, so the board version is 3 mm thick. The self-adhesive vinyl version is a thin film that sits flat on the surface. Dibond is two thin aluminium skins with a plastic core, so it is rigid but still easy to fix. Foamex is a light foamed PVC board.
Will the Danger High Voltage Sign show up at night?
Only where there is light on it. We print on 3mm Foamex, 3mm Dibond aluminium composite and self-adhesive vinyl, which are not reflective or glow in the dark. For car parks, yards and routes used after dark, position signs under existing lighting, or light them. Where your risk assessment calls for reflective or photoluminescent signs, you will need a specialist supplier.
How do I fix the Danger High Voltage Sign to a wall or fence?
Foamex and Dibond boards can be screwed to a wall through holes drilled near the corners; use washers and do not overtighten, especially on Foamex. On smooth indoor walls and doors, double-sided foam tape or adhesive pads avoid drilling. On fences, drill the board and cable tie it through the holes. The vinyl version simply peels and sticks to a clean, dry, smooth surface. The Danger High Voltage Sign is printed on 3mm Foamex, 3mm Dibond aluminium composite and self-adhesive vinyl.
What file should I upload?
A PDF at the finished size is best, with fonts embedded or converted to outlines. We also take AI, EPS and SVG, and high resolution JPG, PNG or TIFF files. Word, PowerPoint and Canva files are fine as a starting point, but export a full-quality PDF if you can. You can upload up to 3 files of 25 MB each on the product page, or upload later: we email you after you order. The Danger High Voltage Sign is printed on 3mm Foamex, 3mm Dibond aluminium composite and self-adhesive vinyl.
What happens if my file is not good enough to print?
Our file check catches the usual problems: the wrong size, no bleed, low resolution images and text too close to the edge. We tell you what needs fixing before anything is printed, and you can send a new file. If you would rather we sort it, the typesetting option (£15, 1 proof and 2 rounds of changes) sets your text and logo on a clean layout. For the Danger High Voltage Sign, set your file up at the size you order, for example A4 (210 × 297 mm).
What resolution does my artwork need for this sign?
For items read close up, aim for 300 dpi at the finished size. At 300 dpi an A1 (594 × 841 mm) design needs about 7,016 × 9,933 pixels. Logos and text are best as vector artwork, which stays sharp at any size. Photos taken from websites or social media are usually far too small; our file check flags images that may print soft.
Can I order now and send my artwork later?
Yes. You can upload your file on the product page, or place the order and upload later: we email you after you order. Your designer can send the file to us by email or WhatsApp with your order number, so it does not have to come through you. The turnaround clock starts once your order and artwork are confirmed, so send the file early if you have a deadline. The Danger High Voltage Sign comes in 4 listed sizes, from A4 (210 × 297 mm) to A1 (594 × 841 mm).
Can I change the wording or add my logo to the Danger High Voltage Sign?
Yes. Choose "Add my text and logo to a clean layout" (£15, 1 proof and 2 rounds of changes) or "Design it for me from my brief" (£35) in the Artwork options and tell us what you need. You can also upload your own print-ready file at no charge, and a person checks it before printing. Keep safety symbols and colours as they are: changing them can make the sign harder to understand. The Danger High Voltage Sign is printed on 3mm Foamex, 3mm Dibond aluminium composite and self-adhesive vinyl.
Do you check my file before printing?
Yes. A person from our team checks every uploaded file for size, bleed and resolution, and tells you if something needs fixing before anything is made. We print what you supply, so check spelling, phone numbers and dates yourself too. Production starts once your order and artwork are confirmed. For the Danger High Voltage Sign, set your file up at the size you order, for example A4 (210 × 297 mm).
How do I order several of this sign?
The price shown is for one sign in the size and material you pick. Set the quantity box next to Add to basket and the basket multiplies it. If you need several different sizes or materials, add each one to the basket separately. One artwork fee covers the whole quantity of a line, and "Same artwork as another item in my basket" adds no second fee. For large runs, ask for a quote. The Danger High Voltage Sign is printed in our Manchester workshop or by our UK production partner, depending on the size and material.
Will the price change at checkout?
Only delivery is added. The goods price you see in the calculator is final, with no VAT added. UK mainland delivery is £7.95 per order and free when your goods total is £99 or more after any discount code (artwork and design fees do not count towards it). Any artwork or design fee you choose shows as its own line in the basket, so you can see exactly what you are paying for. The Danger High Voltage Sign is printed in our Manchester workshop or by our UK production partner, depending on the size and material.
Can I pay for express production on the Danger High Voltage Sign?
Yes. Express makes this sign ready to dispatch in 2 working days on the opening option, priced at £7.03 against £5.28 on Saver (6 days). To plan back from a date, add 1 to 3 working days for the courier after dispatch and allow for artwork: production starts once your order and artwork are confirmed. If the date is very tight, call 0161 315 1151 before you order.
Do you deliver Danger High Voltage Sign to the Scottish Highlands?
Yes, with a difference in price. Mainland Scottish Highlands postcodes, for example around Inverness, Fort William, Oban and Thurso, pay the mainland rate plus £10 once per order, even when the order qualifies for free delivery. Northern Ireland, the Scottish islands, the Isle of Man, the Channel Islands, the Isles of Scilly and the Isle of Wight are quoted before you order: use Get a quote or call 0161 315 1151. We do not deliver outside the UK. On the opening option, the Danger High Voltage Sign is ready to dispatch in 6 working days on Saver or 2 on Express.
How do the material prices compare on the Danger High Voltage Sign?
At A4 (210 × 297 mm): 3mm Foamex £29.26, 3mm Dibond aluminium composite £42.94 and self-adhesive vinyl £5.28. The gap stays similar on bigger sizes, which the Prices by size table on this page shows in full. Choose on where the sign goes rather than price alone: the cheapest material is not always the one that lasts in that spot.
Is Danger High Voltage Sign suitable for electricians?
This Danger High Voltage sign warns of the electrical voltage present and the risk of shock. It is part of our Electricians range, which gathers what electricians order for installation, testing and inspection work. Other items in the same range include Car Door Magnetic Signs, Magnetic Van Signs, Danger 11,000 Volts Sign and Danger Electric Shock Risk Sign. You can mix items in one basket, and delivery is free once the goods total reaches £99. The Danger High Voltage Sign is part of our Electricians range.
What other signs go with the Danger High Voltage Sign?
Signs that are often needed alongside it include Danger of Death Sign, Caution 240 Volts Sign, Caution 415 Volts Sign and Caution Overhead Cables Sign. Each has its own page with sizes, materials and live prices, and ordering them in the same material keeps a set looking consistent. Add them to one basket: delivery is charged once, and it is free once the goods total reaches £99. The Danger High Voltage Sign is part of our Electricians range.
Can I get the Danger High Voltage Sign bigger than A1 (594 × 841 mm)?
The largest listed size is A1 (594 × 841 mm), from £15.91. For a bigger sign, use Get a quote with the size, material and quantity, and we will price it. Boards larger than A0 travel as oversize items, which adds £15 once per order.
Will this sign bend or bow in the sun?
Foamex is a foamed plastic, so in strong sun and heat a large, thin board can bow, especially if it is only fixed at the corners. Dibond has aluminium skins and stays flat, which is why it is the choice for long-term outdoor signs. Fixing Foamex flat against a wall, or choosing a thicker board, keeps it straighter. The Danger High Voltage Sign is printed on 3mm Foamex, 3mm Dibond aluminium composite and self-adhesive vinyl.
Can I put the Danger High Voltage Sign on a door?
Yes. Self-adhesive vinyl is the neatest choice for doors and glass panels. A 3mm Foamex board with double-sided foam tape also works well on a flat door. Place it at eye level on the push side or beside the door, where it is not hidden when the door is open. If the door is a fire door, check with whoever manages it before screwing anything into it.
Can I trim or drill this sign myself?
Foamex and Correx cut with a sharp craft knife and a straight edge: score a few times, then snap or cut through. Dibond has aluminium skins, so it needs a fine-toothed saw and a steady hand. Drill fixing holes with an ordinary drill bit, going slowly, and keep holes at least 10 mm from the edge. Cutting into the print loses the bleed, so allow for it in the design. The Danger High Voltage Sign is printed on 3mm Foamex, 3mm Dibond aluminium composite and self-adhesive vinyl.
Will this sign be easy to read for people with poor sight?
Strong contrast, a plain bold typeface and a size to suit the viewing distance make the biggest difference. Our standard safety sign designs use the high-contrast colour pairs set by the safety sign scheme. Place signs at eye level, well lit and without glare, and keep the wording short. The Danger High Voltage Sign is printed on 3mm Foamex, 3mm Dibond aluminium composite and self-adhesive vinyl.
Will my brand colours print exactly?
Supply CMYK where you can. RGB files are converted to CMYK for print, which can make very bright greens, blues and oranges look slightly duller. If you need a brand colour matched, give us the Pantone reference and we match it as closely as the material allows. Small differences between a screen and the printed item are normal, because screens give off light and print reflects it. For the Danger High Voltage Sign, set your file up at the size you order, for example A4 (210 × 297 mm).
Can I change my artwork after ordering?
Contact us straight away on 0161 315 1151 or WhatsApp with your order number. If production has not started we can take a corrected file, or cancel the order and refund you in full. Once production starts the order cannot be changed. Printing that matches the design you approved or the file you supplied is not a fault, so check spelling, phone numbers and dates carefully before you order. The Danger High Voltage Sign starts at £5.28 before delivery.
Can I get a quote for a large order or an unusual size of the Danger High Voltage Sign?
Yes. Use the Get a quote page and tell us the size, quantity, material, deadline and delivery postcode, and attach any artwork you have. We reply by email or WhatsApp with a price. A quote is also the way to go for delivery to Northern Ireland and the islands. The Danger High Voltage Sign is printed in our Manchester workshop or by our UK production partner, depending on the size and material.
Can I get a VAT invoice?
No. We are not VAT registered, so we do not charge VAT and cannot issue a VAT invoice. You get an order confirmation email with the items, options and total paid, which works as your receipt. Because no VAT is added, the price you see in the calculator is the price you pay for the goods, with delivery shown at checkout. The Danger High Voltage Sign starts at £5.28 before delivery.
Can I reorder the same sign later?
Yes. Order the same product and options again and upload the same file. Keep your print-ready file safe so a repeat order is quick. If anything like a phone number or price has changed, update the artwork before you reorder. The Danger High Voltage Sign starts at £5.28 before delivery.
Do I need an account to order?
No. You can check out as a guest and pay by debit or credit card, processed securely by Stripe. Creating an account at checkout lets you see past orders in My Account. Either way you get an order confirmation email and a tracking email when your order is dispatched. The Danger High Voltage Sign is printed in our Manchester workshop or by our UK production partner, depending on the size and material.
How do I pay?
By debit or credit card at checkout. Payments are processed securely by Stripe, and we never see or store your full card number. Your order goes into production once payment is taken and your order and artwork are confirmed. For a large or unusual order you can ask for a quote first. The Danger High Voltage Sign is printed in our Manchester workshop or by our UK production partner, depending on the size and material.
How many Danger High Voltage signs do I need?
Walk the route people take and put a sign wherever someone needs the message and would otherwise miss it: each entrance, each approach to the hazard and each change of direction. Larger areas usually need the same sign more than once, in the size that suits each viewing distance. Add them all as one line with a quantity, or as separate lines if you need different sizes or materials. The Danger High Voltage Sign starts at £5.28 before delivery.
What if my order arrives damaged?
Check it when it arrives. If anything is damaged or missing, tell us within 48 hours with photos of the item and the packaging, through the contact form or on WhatsApp, with your order number. Do not send anything back until we reply; we then arrange a reprint or a refund. This does not affect your legal rights, which the returns page explains. The Danger High Voltage Sign starts at £5.28 before delivery.
How do I clean this sign?
Wipe with a soft cloth and warm, soapy water, then rinse and dry. Do not use solvents, scouring pads or strong cleaners, which can dull or lift the print. Store spare boards flat so they do not bow. The Danger High Voltage Sign is printed on 3mm Foamex, 3mm Dibond aluminium composite and self-adhesive vinyl.
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