Products C-Series


SPDT/ DPDT Pressure & Temperature switches.


The SIL 2 certified C-series is available in a wide range of Pressure, Temperature, Vacuum and Differential pressure ranges.

With all kinds of process connections,  and wetted materials.


(with option “I”) for Intrinsically safe applications
Certified by KIWA acc. to NEN EN 60079-0 / EN 60079-11 for:

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: KIWA 15 ATEX 0023X &
IECEx: KIWA 15.0011X (-60 to +80°C) approved.

CSA: Cert.No.: 1891054  &
FM : Cert.No.: 3031247 (-40 to +80°C) approved.

Option “I”

in accordance with art. 9 of the ATEX Directive 2014/34/EU (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 Ex 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”).

Downloads C-Series

Short Form Data Sheets:

BETA General Product Bulletin:

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