Device description, 8 electrical data – KROHNE VA 40 ATEX II2G Ex i EN User 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
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