Danger Mains Voltage Electrical Sign
Warns of dangerous mains electrical voltage to prevent serious injury or fatal accidents.
• Alerts individuals to the presence of high voltage electrical hazards
• Suitable for use in industrial sites, plant rooms, and electrical areas
• Bold yellow and black design ensures high visibility and instant recognition
• Available in durable rigid plastic and self adhesive vinyl materials
• Helps reduce risk of electric shock and supports workplace safety awareness
Product Overview
This Danger Mains Voltage sign is designed to clearly warn individuals of the presence of hazardous electrical voltage. Featuring a bold yellow warning triangle with a lightning bolt symbol and clear text, it provides immediate visual recognition of electrical danger, helping to prevent serious injuries or fatalities in high-risk environments.
Where to Use
- Electrical control rooms
- Plant and machinery areas
- Construction sites
- Maintenance and service areas
- Industrial facilities
Key Features
- High-impact warning symbol with clear text
- Instant recognition of electrical hazard
- Bold yellow and black colour contrast
- Suitable for indoor and outdoor placement
- Helps prevent electric shock incidents
Materials & Options
- Rigid Plastic (1mm)
- Rigid Plastic (2mm)
- Self Adhesive Vinyl
Compliance
This sign supports compliance with UK health and safety regulations, including:
- Health and Safety at Work etc. Act 1974
- Safety Signs and Signals Regulations 1996
Frequently Asked Questions
Where should this sign be installed?
This sign should be installed near electrical equipment, control panels, and any area where mains voltage presents a risk.
Is this sign suitable for outdoor use?
Yes, when produced in rigid plastic, it is suitable for both indoor and outdoor environments.
What does this sign indicate?
It warns that dangerous mains electrical voltage is present and highlights the risk of electric shock or serious injury.
Reviews
We bought the self‑adhesive plastic version for a small maintenance room in Hamilton. Application was simple and the sign looked neat. However, compared with heavy‑duty metal signage I’ve used before, this feels a bit light. I’d be cautious about using it outdoors long‑term or in places with heavy foot traffic or equipment nearby. For indoor or protected use though — solid enough.
I ordered this sign for our small woodworking shop near Wellington. The wording and symbol are unmistakable and easy to read from a few metres away. Installation was straightforward — we screwed it onto the wall beside the main switch. It gives a clear warning to anyone who might be tempted to mess with the panel, which helps keep safety awareness high. I’m satisfied with the quality and clarity — a great safety addition.
We installed this Danger Mains Voltage sign on our electrical distribution board at our shed in Auckland. The classic yellow and black design with the hazard lightning‑bolt icon grabs attention immediately — exactly what’s needed when there’s live mains electricity. The rigid‑plastic version we chose feels solid and weather‑resistant. Even after weeks with occasional humidity and dust, the sign remains firmly fixed and the print is crisp. Definitely a simple but essential safety measure — worth adding to any place with mains wiring.
We attached the sign to our mains switch cupboard in Tauranga. The warning is clear and the sign looks professional. My only caveat - if you place it too low or behind clutter it could be overlooked, which defeats the purpose. For maximum safety, I’d recommend fixing it at eye‑level and keeping the area around the sign clean and visible. Otherwise, a good, functional danger sign