Audible signalling device | Loudspeaker | In flameproof enclosure | Increased safety | Type : 8494/C-S-EN-ST-14-00 | Enclosure material : Polyamide, antistatic | Trumpet material : Polyamide, antistatic | Enclosure colour : Black | Sound pressure level : max. 115 dB(A) @ 1m | Flare size : Short trumpet | AC rated operational voltage : 0,00 V | DC rated operational voltage : 0,00 V | Power : 25 W | Frequency range : 450 - 6000 Hz | Application range (zones) : 1 , 2 , 21 , 22 | Gas explosion protection : II 2 G Ex de mb IIC T4 Gb | Dust explosion protection : II 2 D Ex tb IIIC T105 °C Db | min. ambient temperature : -50 °C | max. ambient temperature : +60 °C | Min. service temperature : -50°C | Max. service temperature : +60°C | IP degree of prot. (IEC 60529): IP66/IP67 | part material : Pre-mounted | Cable glands and entries : Can be ordered as accessories | Stopping plugs : 2 x dust cap | Dimensions (L x W x H) : 207 x 188 x 144 mm | For further information, see : r-stahl.com WebCode 8494A