Beschreibung
Product series 8491 are audio signalling devices that provide alerts, warnings or signals in hazardous areas, made from a robust PC/ABS blend. Mounting takes place using angle mounting.The versions of the 8491/1 series have been developed for use in gas hazardous areas. They feature a trumpet for optimum sound bundling and a connection line.The compact signal horns in the 8491/2 series have a connection chamber and can be used both indoors and outdoors in gas and dust hazardous areas. Audible signalling device, Sounder, In flameproof enclosure, Increased safety, Type : 8491/11-042, Enclosure material : PC/ABS, Trumpet material : PC/ABS, Enclosure colour : Black, Sound pressure level : max. 105 dB(A) @ 1m, Back-up fuse : 8560/51-4153, Nominal fuse rating : 315 mA, AC rated operational voltage : 42,00 - 48,00 V, DC rated operational voltage : 0,00 V, Rated operational current : 0,22 A, Power : 0 W, Frequency range : 50 Hz, Application range (zones) : 1 , 2, Gas explosion protection : II 2 G Ex mb IIC T5 Gb, min. ambient temperature : -40 °C, max. ambient temperature : +50 °C, IP degree of prot. (IEC 60529): IP55, Dimensions (L x W x H) : 148 x 152 x 356 mm, For further information, see : r-stahl.com WebCode 8491A