Msa 463944 Hard Hat Class E 4-point Pinlock Suspension

Product Description

The MSA 463944 is a Class E, Type I hard hat designed for general industrial and construction environments where electrical hazard protection is required. Built from high-density polyethylene, this helmet features a 4-point pinlock suspension system that allows quick, tool-free size adjustment for a secure fit. The slotted shell accepts compatible accessories such as face shields and earmuffs. At under one pound, it provides durable head protection without adding significant load over a full shift. Licensed electricians, HVAC technicians, plumbers, and general contractors on job sites where electrical exposure is a factor will find this hat meets ANSI Type I Class E requirements.

The MSA 463944 is suited for commercial construction, industrial maintenance, and utility work where overhead impact and high-voltage electrical hazard exposure are primary concerns. The non-vented shell maintains the Class E rating, which requires the hat to withstand up to 20,000 volts phase-to-phase in testing. The universal fit accommodates a wide range of head sizes without requiring a full ratchet adjustment tool, making it practical for shared-use or multi-worker deployment on active job sites.

Key Features

• ANSI Type I, Class E rated for high-voltage electrical hazard protection
• 4-point pinlock suspension for tool-free size adjustment
• Non-vented polyethylene shell maintains full Class E dielectric integrity
• Slotted shell accepts compatible face shield and hearing protection accessories
• Universal head size fit with plastic suspension material
• Lightweight construction at under one pound for extended wear comfort

Compatibility

Designed as an OEM-style replacement or initial-issue hard hat compatible with MSA slotted-shell accessory systems rated for ANSI Type I Class E applications.

Installation Notes

Hard hats should be fitted by a qualified safety supervisor or the end user following the manufacturer sizing guide before first use. Inspect the shell and suspension for cracks, dents, or UV degradation before each use and replace if damage is found. Do not drill additional holes in the shell, apply adhesive stickers over impact zones, or store the hat in direct sunlight for extended periods, as these actions can compromise dielectric and impact ratings. Hard hat replacement intervals should follow OSHA 29 CFR 1910.135 guidance and the manufacturer recommended service life schedule.