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Installation and operation
Depending on the PSM MID measuring module variant, a back-up fuse of 3 x 16 A (for model
number 7859.312) or 3 x 32 A (for model number 7859.332) should be provided.
EN
For connection of the PSM MID measuring module, use one of the following connection cable
sets from the Rittal accessories:
– 7859.315: Connection cable set CEE – 16 A
– 7859.316: Connection cable set PSM – 16 A (only for PSM busbars with Wago-X-Com con-
nector)
– 7859.335: Connection cable set CEE – 32 A
Note:
Each connection cable set contains both cables for a circuit (input and output). Two
connection cable sets are required when both infeeds are used.
Observe the pin assignment of the connections (identical for the inputs and the outputs):
Pin
Signal
Pin 1
L1
Note:
Phase 1 (L1) of the associated infeed must be used for a single-phase measurement.
The separation into three independent single-phase measurements for each infeed is
not permitted.
Note:
CAN bus connection cables can be obtained from Rittal.
5.2.1
Connection of only one consumer
Connect a cable from the above-mentioned connection cable set to the "Consumer 1" connection
(fig. 3, item 13) and at the input of the consumer itself.
Lock the connection plug to the PSM MID measuring module using the appropriate clamping le-
ver (fig. 3, item 12).
Also establish the voltage supply using a cable from the above-mentioned connection cable sets
to the "Infeed 1" connection (fig. 3, item 11).
Also lock the connection plug to the PSM MID measuring module using the appropriate clamping
lever.
Finally, provide an appropriate cable clamp for all connection cables.
Note:
You must use the "Infeed 1" and "Consumer 1" connections when you use only one in-
feed and one consumer.
10
Pin
Signal
Pin 2
L2
In this case, change the "Disp. Circuit" setting in the configuration menu to
"Source 1" to suppress error messages of infeed 2 (see section 1.1).
Pin
Signal
Pin
Pin 3
L3
Pin 4
Rittal PSM MID measuring module for CMC III
Signal
Pin
N
Earthing
Signal
PE
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