Designed for demanding industrial noise environments, the 3M™ PELTOR™ X4P51E Earmuffs deliver a powerful combination of hearing protection, comfort, and compatibility. Built to attach securely to full brim safety helmets, this model offers a Noise Reduction Rating (NRR) of 25–27 dB depending on configuration, making it an excellent choice for mid- to high-level noise exposures. With a slim earcup profile and electrically insulated design, these earmuffs support effective protection without interfering with other PPE—ideal for professionals working in confined or complex environments.

Key Features

High Performance in a Slim Design: Delivers up to 27 dB NRR in a low-profile earmuff that integrates easily with full brim helmets and other headgear.
Electrically Insulated: Ideal for applications where dielectric protection is required.
Comfortable All-Day Wear: Includes high-density, slow-recovery foam cushions that provide a secure yet soft fit.
PPE Compatibility: Designed to minimize bulk, allowing optimal integration with other personal protective equipment.
Hygiene-Friendly Maintenance: Cushions and foam liners are replaceable using the HYX4 hygiene kit for extended product life and comfort.
Fit-Testable: Compatible with the 3M™ E-A-Rfit™ Dual-Ear Validation System for confirmation of noise reduction levels in real use.

Intended Use

Built for environments with high intermittent or continuous noise, this full-brim helmet-attached earmuff is ideal for:

Industrial and construction job sites
Electrical and utility maintenance
Oil, gas, and petrochemical operations
Heavy infrastructure and transportation sectors
Environments requiring dielectric protection or combined PPE use

The X4P51E model is particularly well-suited for workers who rely on full brim helmets and need streamlined, reliable hearing protection that won’t interfere with face shields, visors, or other essential gear.

Product Specifications

Model Number: X4P51E
Hearing Protection Type: Helmet-attached earmuff (full brim compatible)
NRR (Noise Reduction Rating): 25–27 dB (depending on mounting type)
Color: Black
Ear Cushion Material: Slow-recovery, high-density foam
Dielectric: Yes (electrically insulated)
Replaceable Cushions: Yes, with HYX4 hygiene kit
Testable with: 3M™ E-A-Rfit™ Dual-Ear Validation System
UPC: 00076308401559

Certifications and Standards

Meets relevant hearing protection standards for industrial use
Compatible with 3M™ safety helmet systems
Testable with E-A-Rfit™ validation system for accurate fit assurance