David Clark 40524G-01 – H3430 Headset for Series 3000 PTT Radio Adapter

The H3430 Headset is designed for high-noise industrial and aviation environments where clear voice communication is crucial. Its rugged construction and Noise Reduction Rating (NRR) of 23 dB make it ideal for use in aircraft ramp operations, manufacturing, construction, and vehicle intercom systems, where ambient noise can interfere with communication.

The H3430 is an over-the-head (OTH), dual-ear headset that provides a secure fit and superior passive noise attenuation. The H3440 offers similar performance in a behind-the-head configuration for users wearing helmets, while the H3441 is a single-ear version that allows for more awareness of ambient sounds in mixed-noise environments.

The H3430 integrates seamlessly with David Clark Series 3100, 3400, and 3800 intercom systems as well as Series 3000 mobile radio adapters. It uses the standard 2P-1643 plug and four-conductor shielded cable for reliable, interference-free connectivity across wired or vehicle-based systems.

The headset features the M-7A amplified electret noise-canceling microphone, designed for exceptional speech clarity in high-noise environments. The flex-wire boom allows one-touch placement and rotates to either side, ensuring optimal mic positioning for comfort and consistent audio pickup.

Comfort is achieved through low-tension headband pressure and undercut Comfort-Gel ear seals, which conform to the user’s head for even weight distribution and reduced pressure points. These design elements make the headset comfortable for use over multiple hours in ramp, plant, or airfield environments.

The Series 3400 line, which includes the H3430, represents David Clark’s premium noise-attenuating headset range, offering an M-7A electret mic, superior gel ear seals, and enhanced comfort. The Series 3300 models use a dynamic M-1/DC microphone and are positioned as a standard, rugged alternative for less comfort-critical environments.

Yes. The over-the-head design works well with most aviation or industrial safety caps, but for full helmet integration, users often prefer the H3440 (behind-the-head) variant. Both designs maintain communication performance while accommodating head protection requirements.

The headset incorporates a four-conductor, RFI/EMI-shielded communication cord that resists interference from motors, transmitters, and fluorescent lighting. This ensures stable, distortion-free communication even in electrically noisy environments, such as hangars or maintenance facilities.

Yes. The H3430 is compatible with portable Series 3400 systems, which can support up to 32 connected headsets through belt stations and junction modules, as well as fixed Series 3100 installations for intercom use in facilities or aircraft hangars.

Routine care involves wiping the headset domes and gel ear seals with a damp cloth and avoiding solvents or harsh cleaners. Inspect the cables, connectors, and microphone windscreen regularly, and replace worn ear seals annually to maintain comfort and acoustic integrity.

Yes. PJi offers genuine replacement parts for the David Clark H3430 headset, including the ear seals (40863G-02), microphone (09168P-33), and cord assembly (18028G-09). The headset’s modular design simplifies field service and reduces downtime.

Dual-ear protection ensures better noise attenuation and enhanced focus during critical operations such as pushback or maintenance coordination. It reduces fatigue, improves communication clarity, and supports safety compliance in areas with sustained noise above occupational limits.

Yes. When used with David Clark V3412 VOX Belt Stations, the H3430 supports hands-free communication, activating automatically when the operator speaks into the microphone. This feature is particularly useful in multitasking environments, such as maintenance bays or vehicle operations.