Noise Reduction Rating (NRR) of 27 dB for moderate to high noise exposures
Low-profile cup design for improved compatibility with other personal protection equipment (PPE)
Twin headband design helps reduce heat buildup with good fit and balance
Earcups tilt to ensure a customized fit and comfort for individual users
Electrically insulated (dielectric) wire headband helps reduce hazards around electricity
The
X-Series earmuffs are 3M’s latest advancement in hearing conservation.
New technologies in comfort, design and protection all come together in
this groundbreaking earmuff line. The X4A utilizes a newly designed
spacer, specially formulated foam liners and innovative ear cushions to
help improve attenuation. This lightweight, lower-profile earmuff helps
with compatibility with other personal protective equipment and is
designed for protection against moderate-to-high level industrial noise
and other loud sounds. It features an electrically insulated wire
headband, often referred to as “dielectric”.
NOTE: The X-Series (over-the-head) headband version is electrically insulated -sometimes referred to as ”dielectric”. The metal components of the headband have been covered by non-conductive material for use in a low voltage electrical hazard (less than 440 V ac). As there are no applicable standards for testing ear muffs against electrical insulating properties, the product has been evaluated at an external laboratory against a modified test method based on EN397:1995. During assessment, the leakage current did not exceed 1.2mA when the external surface of the product made contact with an electrical source. The user must determine the overall suitability of this product for the intended application taking into account any hazards other than noise for which this product is tested.
