Danger 400 Volts Safety Sign – Electrical Warning
The Danger 400 Volts Sign is a clear and compliant warning designed for areas where 400V electrical supply is present. Commonly associated with three-phase systems, 400 volts poses a significant risk of electric shock, burns, and electrocution if not properly controlled.
Why Use a 400V Warning Sign?
Unlike standard 230V domestic supply, 400V three-phase power is found in industrial and commercial environments such as factories, warehouses, and construction sites. Exposure to this voltage level is highly dangerous, making clear signage critical for health and safety compliance.
Key Features
- ISO 7010 compliant – yellow warning triangle with black lightning bolt symbol.
- Clear voltage marking – bold “Danger 400 Volts” text for instant recognition.
- Durable construction – available in self-adhesive vinyl or rigid PVC plastic.
- Weather and UV resistant – suitable for indoor and outdoor use.
- Easy to install – peel-and-stick for vinyl, screw or fixings for rigid plastic.
Available Sizes
- A4 (210 × 297 mm) – ideal for machinery panels, equipment and control boards.
- A3 (297 × 420 mm) – perfect for switch rooms, substations, and industrial areas.
Material Options
- Self-Adhesive Vinyl – quick and effective for smooth, clean surfaces.
- Rigid PVC Plastic – durable and weatherproof for permanent installations.
Where to Display
- Industrial machinery and control panels
- Electrical switchboards and distribution rooms
- Factories, warehouses, and workshops
- Construction and engineering sites
- Any location with three-phase electrical supply
Regulatory Compliance
This Danger 400 Volts Safety Sign meets Health and Safety (Safety Signs and Signals) Regulations 1996 requirements. Displaying these signs helps ensure compliance, protects workers, and demonstrates best practice in risk management.
Installation
Apply vinyl stickers to clean, flat indoor surfaces such as machinery housings. For permanent installations, rigid PVC plastic signs can be screwed, drilled, or cable-tied into place, making them suitable for harsher environments.
Order Now
Protect your workforce and stay compliant with UK safety regulations by ordering your Danger 400 Volts Electrical Warning Sign. Available in multiple sizes and materials, delivered quickly across the UK by Easi-Signs.
Related Products
Browse our full range of Electrical Safety Signs, including Danger 230 Volts, Danger High Voltage, and Danger Electric Shock Risk. Ensure your site is fully covered with compliant signage.
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