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Connection
4.2 Connections
Example connections
Several example connections for the expansion module I(N), I(Diff), analog can be found
below.
The device can be connected for current measurement and/or use of the analog inputs I
or a combination of both. The module must be individually configured to meet the
requirements of the application.
Current measurement using current transformers
Figure 4-2
I
input:
N
A suitable current transformer must be used to measure the N-conductor current. The
appropriate current transformer ratio must be set on the device.
I
input:
5
A suitable summation current transformer must be used to measure the residual current. The
device input must be configured accordingly.
20
Possible connection type with three current transformers
Expansion module I(N), I(Diff), analog
Manual, 04/2017, L1V30408520AG-01
/ I
5
6
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