| Protection class | IP 66 (IEC/EN 60529) |
|---|---|
| Material | Enclosure material:Copper free aluminium alloy ( 0.1% copper) |
| Weight | see data sheet |
| Dimensions | see data sheet |
ATEX:
(Ex II 2 G) Ex d IIC T6 Gb
(Ex II 2 D) Ex tb IIIC T85 °C Db IP66
IECEx:
Ex db IIC T6 Gb
Ex tb IIIC T85°C Db IP66
60 °C to +60 °C (standard)
Flameproof acoustic signallers BARTEC ETH9.. / EFST.. series are designed to be installed in industrial plants, where potential hazardous atmos-pheres occur.
These areas are either classified as zone 1 and 2 or as zone 21 and 22.
Used for alarm signaling indoor or with low background noise.