II 1 G Ex ia IIC-T4…T6 Ga or
II 2 G Ex ib IIC-T4…T6 Gb or
II 1 D Ex ia IIIC T85°C Da or
II 2 D Ex ib IIIC T85°C Db
ATEX approved: KIWA 15 ATEX 0023X (-60 to +80°C)
IECEx approved: KIWA 15.0011X (-60 to +80°C)
CSA approved: Cert.No.: 1891054 (-40 to +80°C)
FM Approved: Cert.No.: 3031247 (-40 to +80°C)
This option includes all required installation materials including a blue colored EEx e approved terminal block and the (standard) earth terminal.
Option “I” in accordance with art. 9 of the ATEX Directive 94/9/EC (Ex ia/ib IIC) which are related to insulation, clearance, creepage distances and enclosure type whereby a max. peak voltage of 90 V or 3,3A is allowed.
Please note the following: When a switch is ordered with cable gland (option “C”) BETA will automatically install the EEx i blue cable gland (see drawing). Due to low current used in intrinsically safe systems we recommend the use of switching elements with gold contacts. (code “G1,” “O1” or “Y1”).