Installation and connection
30
RCMS460-490_D00067_03_M_XXEN/12.2017
Legend to W…AB series measuring current transformer
connection
W…AB AC/DC sensitive W…AB series measuring current transfor-
mers. Always adapt the measuring current transformers to
the maximum response value I(dn) (see wiring diagram).
WXS… Prefabricated connecting cable.
Colour code:
kyellow
l green
12 V black
GND brown
+ 12 V red
AN420 Power supply unit for supplying up to six W…AB series
measuring current transformers. Alternatively, an AN110
power supply unit can also be used.
Only if these notes are observed will you obtain a true
measurement result.
You must ensure that all live conductors are routed
through the measuring current transformer.
Do not use shielded conductors.
Do not route any PE conductors through the meas-
uring current transformer!
Commercial measuring current transformers are
not suitable for direct connection to the RCMS460/
RCMS490 systems and must not be used.
Additional information is available in our "Transformer
installation" manual.
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