PRO PM335 QuickStart
www.satec-global.com
ELECTRICAL CONNECTIONS
The following steps correspond with a low-voltage three phase network (figure 2):
1.
Make sure all power sources are disconnected.
2.
Make sure that your designated power supply corresponds with the unit's rating.
3.
Connect the power supply (bottom-left of front panel) via 12 AWG wires and a
designated circuit breaker.
4.
Standard external current transformers: connect the CT's (14 AWG minimum) "
+
" pole
to the
device's
I1
+
current input (unit’s bottom right of rear end, as in figure 2) and the
"
-
" pole to the adjacent
I1-
current input. Repeat this for the following two phases,
I2
and
I3.
Verify proper polarity in your connections in accordance with the arrow printed on the
external CTs.
“HACS” CTs: connect the red/white wire to the "+" terminal and the black/orange
(colors vary according to the CT model) wire to the "-" terminal.
5.
Connect the voltage measurement inputs (22-12 AWG; bottom-center of rear end).
6.
Connect the com wire (26-12 AWG, shielded) to COM1 (RS485, top-left of rear-end).
7.
Power-on the unit.
Figure 2
: Electrical wiring
