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Home | News & Articles | Explosion-proof loudspeaker Armtel!

Explosion-proof loudspeaker Armtel!

news | 29.11.2022

Armtel presents a new AR-25Ex explosion-proof horn-type loudspeaker used in Public address and General alarm systems for broadcasting messages in hazardous areas, indoors and outdoors with harsh operating conditions.

The AR-25Ex is 1Ex d e mb IIB T4 Gb for gas group and Ex tb mb IIIC T135°C Db for dust group. Housing material of new loudspeaker is made of anti-static plastic to prevent a buildup of static electricity.

The AR-25Ex loudspeaker sound pressure level achieves rate of up to 123 dB, which allows it to be used even in extremely noisy zones. It is possible to connect to different rated powers: 25 W, 15 W, 6.5 W, 5 W, 2.5 W, 1.5 W.

A wide operating temperature range from -55 to + 60 ºC and IP66/67 degree of protection allow AR-25Ex to be used in the most severe weather conditions.

AR-25Ex is available in two versions – with one or two cable entries, and is supplied with a stainless steel bracket for mounting.

Technical specification of new AR-25Ex loudspeaker:

Rated power
25 W
Input voltage
100 V
Maximum SPL (1 m)
123 dB
Sensitivity SPL (1 m, 1 W)
110 dB
Explosion protection marking according to GOST 31610.0-2014 (IEC 60079-0:2011)
1Ex d e mb IIB T4 Gb
Ex tb mb IIIC T135°C Db
Ambient temperature
from — 55 to + 60 ºC
Ingress protection
Overall dimensions (with bracket)
354 × 259 × 270 mm
3,2 kg


You can study the new AR-25Ex loudspeaker in more detail and download the documentation for it in the product catalog at the link.