User Manual Section 5
GFK-2958L May 2021
Detailed Description of I/O Modules 368
Up to three neutral conductors (N) can be connected with the first connector. One phase
conductor (at LX) and one 1 A conductor (at LX‘ 1A) or one 5 A conductor (at LX‘ 5A) can
be connected to each of the other three connectors. The three current measurement
connections can be used concurrently all for the same measurement range (1 A or 5 A)
only. The mains connection must be fused with 1 A/5 A respectively.
A status LED is assigned to each channel.
CAUTION
Possible danger to life:
•
Always Disconnect the Power Supply to the station before working with the module and
secure the station against being switched on again.
•
The touch-safe protection of this module is only provided with the DIN rail earthed
properly.
•
Make sure that the DIN rail is connected to PE by earth terminals before commissioning
the module.
The module can be destroyed by overload!
• The measurement connections L1', L2' and L3' are internally
connected to L1, L2, and L3 via a shunt. Neutral conductors
must not be connected to L1', L2' and L3'!
• The module is temporary overload-capable (max. 5 seconds up
to the fivefold current). Make sure that there will be no higher
current peaks (e.g. by saturating the transformer)!
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