380 Volts Warning Sign HS0065

380 Volts Electrical Warning Sign HS0065

The HS0065 380 Volts warning sign is the standard ISO 7010 pictogram for 380 Volts, showing a black lightning bolt inside a yellow warning triangle with the voltage rating printed beneath the symbol. It flags a live electrical circuit or piece of equipment operating at 380 volts, warning crew and visiting personnel that direct or indirect contact carries a serious shock and arc-flash risk. The pictogram is designed to be read and understood instantly regardless of the reader’s first language, making it suited to multinational crews and third-party contractors working aboard.

Within the Hazard Signs range, HS0065 sits alongside our other electrical warning pictograms as the dedicated marker for 380-volt systems specifically, rather than a generic high-voltage caution. On board, this 380 Volts warning sign is typically fitted at engine room switchboards, generator control panels, motor control centres, distribution boards, and access points to electrical workshops or battery rooms where 380V three-phase supply is present. It is also commonly used on cabinet doors, cable trunking covers, and isolation points where a technician needs an immediate, unambiguous warning before opening a panel.

Like the rest of the Hazard Signs catalogue, HS0065 is produced on rigid marine-grade material with a photoluminescent or self-adhesive backing option, chosen to withstand the saltwater atmosphere, humidity, vibration, and UV exposure typical of shipboard environments without fading, cracking, or losing adhesion over years of service.

Why 380 Volts Signage Matters

Electrical faults are among the most serious hazards on a vessel, and 380-volt systems carry more than enough energy to cause fatal shock, severe burns, or an arc-flash event if a crew member makes contact with live components. A clearly posted 380 Volts warning sign gives anyone approaching a panel or enclosure the split-second information they need to stop, assess, and follow lockout-tagout procedure before touching anything, rather than assuming a cabinet is safe to open.

Consistent use of this signage also supports the ship’s broader electrical safety culture. It reinforces permit-to-work systems, helps new crew and contractors who may be unfamiliar with the vessel’s layout, and gives safety officers a quick visual check during rounds and drills that every point of exposure to 380-volt supply is properly identified and undamaged.

Compliance and Certification

HS0065 reproduces a registered ISO 7010 safety sign, the internationally recognised standard for graphical hazard symbols used across shipping, industry, and the built environment. Fitting recognised ISO 7010 pictograms supports the general safety signage expectations set out under IMO guidance and the broader SOLAS framework for shipboard safety, and consistent, well-maintained signage is routinely checked during Port State Control inspections and classification society surveys. Keeping a compliant 380 Volts warning sign in place at every relevant panel or enclosure helps a vessel demonstrate that electrical hazards are properly identified as part of its safety management system.

Installation Recommendations

Mount this 380 Volts warning sign directly on or immediately beside the panel, switchboard, or enclosure it refers to, at eye level wherever practical so it is seen before a door or cover is opened. On curved or textured surfaces, such as cable trunking or cabinet frames, the self-adhesive option conforms well, while the rigid panel version suits flat bulkheads and dedicated electrical spaces. Check visibility periodically during maintenance rounds, particularly in engine rooms and workshops where grease, dust, or repainting can obscure signage over time.

• Reproduces the registered ISO 7010 pictogram for the 380 Volts electrical hazard
• Available in rigid marine-grade panel or self-adhesive vinyl construction
• Saltwater, humidity, and UV resistant for long-term shipboard durability
• Photoluminescent option stays visible during power loss or low light
• Sized and finished for switchboards, panels, and electrical workshop entries

Order HS0065 to keep every 380-volt point of exposure on your vessel clearly marked and inspection-ready. Browse the full Hazard Signs range for related electrical and mechanical warnings, or check our Fire Fighting Signs for equipment covering onboard fire response.