MBS IDNR 8.6.0251/02-2020 (Index_04)
page 9 of 9
Connection example to a meter with 1 A current transformer inputs
The 1 A outputs of
the ROI-3 must
not be earthed.
Likewise, the input
terminals of the
measuring device
must not be
earthed.
energy meter
I1
I2
I3
S1
S2
S1
S2
S1
S2
current measurement (1 A inputs)
A(+)
B(+)
C(+)
A(-)
B(-)
C(-)
+
-
+
-
+
-
24 VDC power supply
with at least
0.7 A
Power (-) is grounded.
~
=
(GND)
