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Bosch 25W Explosion Flameproof Horn Speaker 100v (each)
LBC 3438/00
New product
Bosch 25 watt explosion flameproof horn loudspeakers are specifically designed and approved for installations where explosive gas-air mixtures are likely to be present. They are suitable for use in all gas groups including hydrogen.
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- ATEX approved
- CENELEC compliant
- BASEEFA certified
- Glass reinforced polyester with strong, fire retardant properties
- Reduced maintenance costs
- Corrosion and chemical resistance
- Water- and dust protected to class IP 66 and IP 67
The flame paths, flare and body of these loudspeakers are constructed from a UV stable glass reinforced polyester (GRP). This strong, fire and corrosion resistant material offers greater reliability and reduced maintenance costs. GRP is also chemical resistant and thermally stable, making it ideal for even the harshest environments. The horns are weather proof, and incorporate stainless steel mounting brackets and captive cover screws, and a stainless steel sinter, to increase their resistance to corrosion. They are supplied with an EExdIIC gland as standard.
The horn loudspeakers include a built-in transformer with taps on the primary winding for different power settings.
The horn loudspeakers are supplied with a sturdy mounting bracket allowing the sound beam to be accurately directed. The bracket has a ratchet facility to ensure it stays correctly positioned.
| Maximum power | 37.5 W |
| Rated power | 25/12.5/6/4/2/1 W |
| SPL at RP / 1 W(1 kHz, 1 m) | 114 / 100 dB (SPL) |
| Effective frequency range (-10 dB) | 420 Hz to 3.5 kHz |
| Opening angle at1 kHz / 4 kHz (-6 dB) | 160° / 60° |
| Rated voltage | 100 V |
| Rated impedance | 400 ohm |
| Connector | Screw terminal |
| Dimensions (L x D max) | 271 x 170 mm (10.7 x 6.7 in) |
| Weight | 5 kg (11 lbs) |
| Color | Natural black |
| Cable diameter | 7.5 mm to 11.9 mm(0.3 in to 0.5 in) |
| Operating temperature | -20 ºC to +55 ºC(-4 ºF to +131 ºF) |
| Storage temperature | -40 ºC to +70 ºC(-40 ºF to +158 ºF) |
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