The DC input is protected against inverse polarity within the rated DC voltage range.
Connection diagram
M6377-8 v2
IEC08000476 V2 EN-US
Figure 646: PSM Connection diagram.
22.2.3.3 Technical data
SEMOD52801-1 v1
M12286-1 v4
Table
1002:
PSM - Power supply module
Quantity Rated value Nominal range
Auxiliary dc voltage, EL (input) EL = (24 - 60) V
EL = (90 - 250) V
EL ±20%
EL ±20%
Power consumption 50 W typically -
Auxiliary DC power in-rush < 10 A during 0.1 s -
22.2.4 Local human-machine interface (Local HMI)
SEMOD56218-5 v2
Refer to section "" for information.
22.2.5 Transformer input module (TRM)
IP15581-1 v1
22.2.5.1 Introduction
M14875-3 v9
The transformer input module is used to galvanically separate and adapt the secondary currents
and voltages generated by the measuring transformers. The module has twelve inputs in different
combinations of currents and voltage inputs. Either protection class or metering class CT inputs
are available.
Alternative connectors of Ring lug or Compression type can be ordered.
22.2.5.2 Design
M14858-3 v8
The transformer module has 12 input transformers. There are several versions of the module, each
with a different combination of voltage and current input transformers.
Basic versions:
1MRK 502 066-UUS B Section 22
IED hardware
1283
Technical manual
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