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Danger 400 Volts Signs
£4.99
In stock
SKU
HZ080AU*
Danger 400 Volts Signs help you warn staff, contractors and engineers before they approach live electrical equipment in plant rooms, workshops and service areas.
Danger 400 Volts Signs warn you, your staff and visiting engineers before they approach equipment carrying a serious electrical shock risk. Use them on switchgear, machinery, electrical rooms and service doors where a clear 400V warning helps prevent unsafe access.
Where Danger 400 Volts Signs Should Be Fitted
You should install these signs at the point where someone first meets the hazard: switchgear doors, machinery access points, plant rooms, isolator cupboards and electrical service areas. Position them at eye level so the warning is seen before anyone reaches, opens or works nearby.
Viewing Distance Guidance for 400V Electrical Warnings
For small equipment labels, use close-range placement within about 1–2 metres. For doors, corridors and workshop approaches, choose larger sizes that remain readable from around 5–10 metres before someone reaches the electrical hazard.
Expected Behaviour Change Around 400V Hazards
Once fitted correctly, this sign gives people a clear pause point before they touch, open or work near 400V electrical equipment. It helps you guide safer behaviour without relying on verbal warnings or local knowledge.
✅ Staff recognise the electrical risk before approaching equipment
✅ Contractors are prompted to check authorisation before work begins
✅ Visitors are discouraged from opening or handling restricted equipment
Technical Details for This 400V Electrical Warning Sign
- Sign message: “Danger 400 Volts”
- Conforms to EN ISO 7010
- EN ISO 7010 code: W012
- Conforms to BS 5499 sign regulations
- Sign type: hazard warning
- Purpose: helps prevent electric shock injuries
- Pictogram: electric icon inside danger triangle
- Shape: rectangle
- Orientation: portrait
- Background colour: yellow
- Text colour: black
- Symbol colour: black
- Finish: glossy film surface
- Non-photoluminescent
- Non-reflective
- Supplied as single sign
- Materials: rigid plastic or self-adhesive vinyl
- Size: H 70 x W 50 mm
- Size: H 150 x W 125 mm
- Size: H 210 x W 148 mm
- Size: H 297 x W 210 mm
- Size: H 420 x W 297 mm
- Vinyl has adhesive backing
- Rigid plastic fixings available separately
Fitting Advice for Clearer 400V Hazard Control
❌ Placement errors that weaken the warning
❌ Fitting the sign too low where tools or stored items hide it
❌ Placing it after the access point instead of before the hazard
❌ Using a small sign where people approach from a distance
❌ Fitting the sign too low where tools or stored items hide it
❌ Placing it after the access point instead of before the hazard
❌ Using a small sign where people approach from a distance
❌ Situations where this sign is the wrong choice
❌ Do not use it for lower-voltage warnings where the wording is inaccurate
❌ Do not rely on it for locked electrical rooms without access control
❌ Do not use damaged, faded or dirty signs near live equipment
❌ Do not use it for lower-voltage warnings where the wording is inaccurate
❌ Do not rely on it for locked electrical rooms without access control
❌ Do not use damaged, faded or dirty signs near live equipment
✅ Better fitting choices for real workplaces
✅ Clean and dry the surface before applying vinyl signs
✅ Mount rigid plastic securely where knocks or cleaning are likely
✅ Repeat the sign on more than one approach if the hazard has multiple access points
✅ Clean and dry the surface before applying vinyl signs
✅ Mount rigid plastic securely where knocks or cleaning are likely
✅ Repeat the sign on more than one approach if the hazard has multiple access points
Danger 400 Volts Signs questions answered
What are Danger 400 Volts Signs used for? They warn people that nearby equipment or access points may expose them to a serious 400V electrical shock hazard.
Where should you place a 400 volts electrical warning sign? Fit it where the hazard is first encountered, such as switchgear doors, plant rooms, machinery housings, isolators and electrical service entrances.
Should you choose rigid plastic or self-adhesive vinyl? Use self-adhesive vinyl on smooth clean surfaces. Choose rigid plastic where you need a stronger mounted sign on walls, doors or uneven surfaces.
Is the yellow triangle symbol important? Yes. The black electric symbol inside the yellow warning triangle helps people recognise an electrical hazard quickly, even before reading the wording.
When are 400V danger signs not enough on their own? They should not replace lock-off procedures, guarding, permits, isolation controls or competent electrical supervision where live electrical risks exist.
Danger 400 Volts Signs Features and Practical Benefits
Features
- ✓ Displays the exact “Danger 400 Volts” message
- ✓ Uses the ISO 7010 W012 electrical hazard symbol
- ✓ Available in rigid plastic and self-adhesive vinyl
- ✓ Supplied in multiple portrait sizes for different locations
Benefits
- ✓ Helps you warn people before they reach live equipment
- ✓ Supports clearer control around plant rooms and switchgear
- ✓ Lets you choose adhesive or mounted fitting to suit the surface
- ✓ Improves recognition for staff, contractors and visitors
Choose the right 400 volt hazard sign
For a more specific voltage warning, choose danger 400 electrical volts signs where the message needs to highlight electrical voltage clearly. Practical for control rooms, electrical cabinets and machinery access points.
If you are updating several warning points, use 400 volts electrical hazard signs to compare suitable options in one place. Ideal for keeping voltage warnings consistent across workshops, service corridors and equipment areas.
Estimated Delivery Day
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Based on an estimated 3 working day delivery timeframe from today, excluding weekends and bank holidays. Delivery dates are provided as a guide only and may vary depending on the product ordered, stock availability at the time of purchase, production or printing lead times.