Signal Horn 105 dB (A) Series 8491/1, 8491/2

Signal Horn 105 dB (A) Series 8491/1, 8491/2

Series 8491/1, 8491/2

  • Fixed signal tone
  • Volume max. 105 db (A) / 1 m
  • Installation by means of angle mounting
  • AC and DC versions
  • Signal horn Series 8491/1
    • with trumpet and connection cable
  • Signal horn Series 8491/2
    • compact design with connection chamber and cable gland

The signal horns Series 8491 are audio signalling devices designed to warn, call and indicate in hazardous areas. They are made of a robust PC/ABS blend. The horns generate a sound level of approximately 105 db (A) at a distance of 1 m. Installation is realised by means of angle mounting.

The versions of Series 8491/1 have been developed for use in areas with an explosive gas atmosphere. They have a trumpet for optimum sound concentration as well as a connection cable.

The compact signal horns Series 8491/2 have a connection chamber and can be used indoors and outdoors in areas with explosive gas atmosphere.

Zone 0 1 2 20 21 22
8491/1: For use in x x
8491/2: For use in x x x x

Data sheets

Document Size Language
Data sheet 392 kB English
Data sheet 394 kB German
Data sheet 369 kB Spanish
Data sheet 367 kB French
Data sheet 392 kB Russian

Operating Instructions

Document Size Language
Operation Instructions 1,49 MB English/German
Operation Instructions 985 kB English/German
Operation Instructions 939 kB Danish
Operation Instructions 940 kB Spanish
Operation Instructions 940 kB French
Operation Instructions 646 kB French
Operation Instructions 730 kB Russian
Operation Instructions 1010 kB Russian
Operation Instructions 1,04 MB Italian
Operation Instructions 939 kB Portuguese


Type Certificate No. Document-Type Language Cer. Body Country/ Region
8491 849160020010 EU Declaration of Conformity deenfr - European Union (ATEX)
8491 BVS03ATEXE159X Ex Certificate deen BVS European Union (ATEX)
8491 TS_RU_S-DEGB04B00236 Ex Certificate ru STV Eurasian Customs Union (EAC)