KROHNE VA 40 ATEX II2G Ex i EN - Manual (Page 9)

DEVICE DESCRIPTION
2
9
VA40
www.krohne.com 06/2013 - 4002262402 - MA VA40-Ex-II2G-AD R02 en
2.8 Electrical data
Limit switch TG21
The built-in intrinsically safe NAMUR limit switch TG21 may only be connected to isolation
switching amplifiers with separated intrinsically safe circuits to EN 60947 -5 -6 with the
following max. values:
Maximum values of the power supply units
When connecting to intrinsically safe circuits, take into consideration the following maximum
values per circuit for the energy stores.
Limit switch MS14
Built-in limit switch MS14 may only be connected to separate intrinsically safe circuits with the
following maximum values:
When connecting to intrinsically safe circuits, take into consideration the following maximum
values per circuit for the energy stores.
Supply P
i
[mW] U
i
[V] I
i
[mA]
Type 1 34 16 25
Type 2 64 16 25
Type 3 169 16 52
C
i
[nF] L
i
[µH]
165 150
P
i
[W] U
i
[V] I
i
[mA]
1 30 100
C
i
[nF] L
i
[µH]
0 0
AD_VA40_II2G_R02_en_4002262402_PRT.book Page 9 Wednesday, June 26, 2013 2:33 PM