TIA-4950 Heavy-Duty Behind-the-Head Headset with 24 dB Noise Reduction

The Motorola PMLN6763A is a heavy-duty, dual-ear headset engineered for clear two-way radio communication and hearing protection in high-noise industrial environments. Its behind-the-head design fits beneath most helmets and hard hats, making it ideal for personnel who must wear head-mounted protective equipment.

Soft gel ear seals provide a secure, comfortable fit during extended work shifts, while the headset’s 24 dB Noise Reduction Rating helps reduce exposure to harmful surrounding noise. A flexible noise-canceling boom microphone improves transmitted voice clarity by reducing unwanted background sound.

The large push-to-talk button is conveniently located on the ear cup for quick radio activation, including while wearing heavy work gloves. An attached cable connects directly to a compatible Motorola portable radio without requiring a separate audio adapter.

The PMLN6763A is UL TIA-4950 approved for hazardous-location use when connected to an appropriately certified Motorola radio. Intrinsic-safety approval applies to the complete radio and accessory combination.

Key Features

• Heavy-duty behind-the-head headset

• Fits beneath most helmets and hard hats

• Dual-ear speakers provide clear receive audio

• 24 dB Noise Reduction Rating

• Helps protect hearing in high-noise environments

• Flexible noise-canceling boom microphone

• Large push-to-talk button located on the ear cup

• Glove-friendly PTT operation

• Soft gel ear seals for extended-wear comfort

• Direct wired connection to compatible Motorola radios

• IP54-rated dust and water resistance

• UL TIA-4950 intrinsically safe when properly configured

• No separate audio adapter required

• Not Bluetooth capable

• No integrated volume control

• Genuine Motorola Solutions accessory

• Motorola part number PMLN6763A

Radio Compatibility

The PMLN6763A supports select Motorola portable two-way radios with the appropriate accessory connector, including:

• MOTOTRBO R3

• MOTOTRBO R5

• XPR 3300 and XPR 3300e

• XPR 3500 and XPR 3500e

• XPR 3550 and XPR 3550e

• Select international DP2000 and DP2000e Series radios

• DP3441 and DP3441e

• DP3661e

Compatibility and intrinsic-safety approval depend on the exact radio model, accessory connector, certification, and regional configuration. Confirm the complete radio and headset combination before ordering.

Hearing-Protection Information

• Provides a 24 dB Noise Reduction Rating

• Dual soft-gel ear seals help reduce surrounding workplace noise

• Proper fit is necessary to achieve the rated level of protection

• Inspect the headset and ear seals regularly for wear or damage

• Actual protection may vary based on fit, condition, and workplace use

• Follow applicable hearing-conservation and workplace-safety requirements

Intrinsic-Safety Information

• UL TIA-4950 approved for supported radio configurations

• Designed for use with appropriately certified Motorola radios

• Attaching the headset does not make a standard radio intrinsically safe

• Approval applies to the complete certified radio and accessory combination

• Verify hazardous-location approval before deployment

Hard-Hat and Helmet Use

The behind-the-head design leaves the top of the wearer’s head unobstructed, making the headset suitable for use with many:

• Hard hats

• Safety helmets

• Bump caps

• Face shields

• Other compatible head-mounted protective equipment

Protective-equipment compatibility depends on its style and fit. Confirm that the complete combination fits properly and maintains the required hearing protection.

Ideal Applications

• Oil and gas operations

• Chemical and processing facilities

• Manufacturing plants

• Construction sites

• Utilities and public works

• Mining and heavy industry

• Transportation and fleet operations

• Personnel wearing hard hats or helmets

• Approved hazardous-location operations

• High-noise workplaces requiring hearing protection

Why Buy from Delmarva Communications?

Delmarva Communications has more than 20 years of experience helping organizations find dependable communication equipment and accessories. Our knowledgeable team can help confirm radio, connector, hearing-protection, protective-equipment, and intrinsic-safety compatibility so you receive the correct Motorola headset for your operation.