Audible signalling device | Sounder | In flameproof enclosure | Increased safety | Type : 8493/11-21-6 | Enclosure material : Aluminium | Trumpet material : ABS | Enclosure colour : Red | Sound pressure level : max. 110 dB(A) @ 1m | AC rated operational voltage : 230,00 V | DC rated operational voltage : 0,00 V | Tolerance : -10 … 10 % | Rated operational current : 0,056 A | Power : 0 W | Frequency range : 420 - 2900 Hz | Application range (zones) : 1 , 2 , 22 | min. ambient temperature : -50 °C | max. ambient temperature : +55 °C | IP degree of prot. (IEC 60529): IP66 | part material : Provided | Cable glands and entries : Can be ordered as accessories | Stopping plugs : Can be ordered as accessories | Dimensions (L x W x H) : 275 x 165 x 181 mm | For further information, see : r-stahl.com WebCode 8493A