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UMG 509
Current measurement
The UMG 509 is intended for the connection of current
transformers with secondary currents of ../1A and ../5A.
The factory default for the current transformer ratio
is 5/5A and must be adapted to the current transformer
employed if necessary.
Only AC currents can be measured - DC currents cannot.
Any of the current measurement inputs can be loaded
with 120A for 1 second.
Fig. Current measurement (I1-I3) via current
transformers (connection example)
S1
S2
L1 N PEL3L2
S1
S2
S1
S2
S1
S2
Load
c
Please note!
The measurement lines must be suitable
for an operating temperature of at least
80°C!
m
The attached screw-type terminal must be
fixed using the two screws on the device!
m
Please note!
The UMG 509 is not suitable for measuring
DC voltages.
c
Please note!
The current measurement inputs are
dangerous to touch.