The DSP-15EExmNT from DNH is a high-performance explosion-proof horn speaker designed for reliable communication in hazardous and noisy industrial environments. Built for use in Zone 1, 2, 21, and 22 areas, it ensures clear and powerful audio transmission in critical safety and public address systems.
This rugged loudspeaker features a durable anti-static enclosure, high sound pressure output, and flexible installation options, making it ideal for offshore platforms, chemical plants, refineries, and other demanding industrial applications.
Key Features
- Explosion-proof design for hazardous areas (ATEX / IECEx certified)
- High sound output up to 118 dB for noisy environments
-
25W rated power with multiple transformer tap settings
- IP66 / IP67 rated – weatherproof and dustproof
- Lightweight and durable anti-static plastic housing
- Easy installation with dual M20 cable entries
Applications
The DSP-15EExmNT is widely used in:
- Oil & gas facilities
- Offshore platforms
- Chemical and petrochemical plants
- Refineries and fuel storage areas
- Industrial PA/GA (Public Address & General Alarm) systems
Technical Specifications
- Model: DSP-15EExmNT
- Brand: DNH
- Type: Explosion-proof horn loudspeaker
- Rated Power: 25 W (max 30 W)
- Transformer Tappings: 1.5W / 2.5W / 5W / 6.5W / 15W / 25W
- Sound Pressure Level:
- 106 dB (1W/1m)
- 118 dB (rated power)
- Frequency Range: 380 – 8000 Hz
- Dispersion: 120° (1kHz) / 37° (4kHz)
- IP Rating: IP66 / IP67
- Operating Temperature: -50°C to +60°C
- Weight: ~2.2 kg
- Material: Anti-static PA (black)
- Certification: ATEX, IECEx, UL, CSA, and more
