Danger OSHA Sign: High Voltage With Graphics

Danger OSHA High Voltage Sign with Graphics — Clear Hazard Warning for Electrical Areas

The Danger OSHA High Voltage Sign with Graphics (Part# LS-10963) is a compliant safety sign designed to alert workers and personnel to the presence of high-voltage electrical hazards. Formatted in the standard OSHA Danger header style with red and black coloring, this horizontal sign is suited for electrical panels, transformer enclosures, utility rooms, and any area where high-voltage equipment is present. It is available in multiple sizes and substrate materials to meet the demands of various jobsite environments. Intended for contractors, facility managers, and trades professionals who require durable, clearly visible hazard identification.

Technical Specifications

Unlike generic warning signs, this sign uses the OSHA-standard Danger header format with a high-voltage graphic, providing immediate visual recognition of the specific hazard type. The range of available substrate materials — from adhesive labels to heavy-gauge 40 mil aluminum — allows contractors to select the appropriate durability level for indoor panels, outdoor enclosures, or high-traffic industrial environments.

Key Features & Benefits

OSHA Danger Header Format

The sign uses the recognized red OSHA Danger header, ensuring the hazard level is immediately communicated to workers. This standardized format supports consistent safety communication across jobsites.

High Voltage Graphic Included

The inclusion of a high-voltage graphic alongside text improves recognition speed, particularly in environments where workers may be moving quickly or visibility is limited. Graphic-based signage reduces reliance on text comprehension alone.

Multiple Substrate Options

Available in 3M Engineer Grade Labels, Laminated Plastic Labels, 3M Engineer Grade Aluminum, Plastic, and 40 mil Aluminum, contractors can match the sign material to the specific exposure conditions of the installation site. Aluminum substrates are well-suited for permanent outdoor or industrial installations, while label formats work for panel interiors or equipment surfaces.

Multiple Size Options

With sizes available at 5" x 7", 7" x 10", and 10" x 14", this sign can be appropriately scaled to the viewing distance and mounting location. Larger formats are appropriate for room entrances or equipment enclosures, while smaller formats suit panel doors or confined spaces.

Red and Black Color Scheme

The red and black color combination is consistent with OSHA Danger-level signage standards, providing high contrast for visibility. This color coding helps workers immediately distinguish Danger-level hazards from lower-severity warnings.

Common Applications

Electrical Panel Enclosures

Mounted on the exterior of electrical panels to warn personnel of high-voltage components inside before opening or servicing.

Transformer and Switchgear Rooms

Posted at entry points or directly on equipment housings in utility and transformer rooms to restrict unauthorized access.

Industrial Machinery

Affixed to high-voltage machinery on manufacturing floors or construction sites to alert operators and nearby workers of electrical hazards.

Utility and Mechanical Rooms

Used in building mechanical rooms where high-voltage distribution equipment is present, supporting facility safety programs.

Outdoor Electrical Enclosures

Aluminum substrate versions are appropriate for outdoor electrical cabinets and junction boxes exposed to weather and UV.

Compatible Materials

• Metal panel surfaces (aluminum, steel)
• Plastic enclosure surfaces
• Painted or primed wall surfaces (label versions)
• Equipment housings and machinery frames
• Wood or composite substrates (label versions)