400 Volts Electrical Warning Signage

400 volts electrical warning signage highlights the presence of high-voltage three-phase power, helping you alert people to serious electric shock risks around industrial equipment and electrical installations. Using bold hazard visuals and clear messaging, these signs are typically positioned on switchgear, control panels and distribution units to ensure the voltage risk is recognised before access or operation.

They support safer working by reinforcing awareness, encouraging controlled access and guiding appropriate precautions when working near high-voltage systems. Well suited to factories, plant rooms, maintenance areas and industrial environments, they provide a strong visual warning at key electrical points. Manufactured from durable materials such as rigid plastic, aluminium and high-visibility finishes, they remain effective in demanding indoor and outdoor conditions.