Secondary Telephone Alarm
II 2 G Ex e mb [ib] IIC T6 Gb for -20 °C ≤ Ta ≤ +40 °C
II 2 G Ex e mb [ib] IIC T5 Gb for -20 °C ≤ Ta ≤ +50 °C
II 2 G Ex e mb [ib] IIC T4 Gb for -20 °C ≤ Ta ≤ +60 °C
PTB 99 ATEX 2115
IECEx PTB 13.0048
Ringing frequency: 16 Hz ... 54 Hz
Nominal voltage: 230 VAC
Ringing voltage: 30-90 VAC
Housing: Die-cast aluminium, cap made of macrolon
Protection class: IP66
Weight: Approx. 1.5 kg
Type: FHF 118 83 312 (TWIN EExII)
Manuf.: "FHF"