Siemens SICAM 7KG85X, Manual, Page: 198 / 281

Supply from a Direct Voltage Source
Terminal N/-: Negative supply voltage
Terminal L/+: Positive supply voltage
Terminal Earthing: Protective grounding terminal
i i
NOTE
Always connect the grounding at the device to the terminal for the protective phase grounding (terminal
block H).
Terminals and Conductors
The device has the following terminal blocks:
Terminal Block Description
E 3 inputs for alternating current measurement
F 4 inputs for alternating voltage measurement
H Supply voltage
G 2 binary outputs
Terminals for supply voltage (H), inputs for current measurement (E), inputs for voltage measurement (F), and
binary outputs (G):
•
Conductor cross-section, rigid max.: 2.5 mm 2 (AWG 14)
•
Conductor cross-section (conductor with ferrule): 1.5 mm 2 (AWG 16)
•
Conductor cross-section (conductor with ferrule, terminal F): 2.5 mm 2 (AWG 14)
•
Tightening torque: 0.4 Nm to 0.5 Nm (3.5 in-lb to 4.5 in-lb)
•
RS485 interface (J) on the terminal side: RS485 cable with 9-pole D-sub socket
•
Ethernet interface (Z) on the top side: Ethernet patch cable or crossover cable
Functions of the Terminals
Terminal
Assigned Function,
Measured Value or Indi-
cation
Description
E: I A
L1
⇒
Ia Phase a, input, current measurement
E: I A
L1
⇐
Ia Phase a, output, current measurement
E: I B
L2
⇒
Ib Phase b, input, current measurement
E: I B
L2
⇐ Ib Phase b, output, current measurement
E: I C
L3
⇒
Ic Phase c, input, current measurement
E: I C
L3
⇐
Ic Phase c, output, current measurement
F: A
L1
Van Phase a, voltage measurement
F: B
L2
Vbn Phase b, voltage measurement
F: C
L3
Vcn Phase c, voltage measurement
F: N N Neutral phase, voltage measurement
G: 1 Binary output 1 Binary output 1
G: 2 Root Common root for both binary outputs
G: 3 Binary output 2 Binary output 2
H (Earth) Protective phase –
Commissioning and First Steps
9.5 Electrical Connection
SICAM, SICAM P850/P855 7KG85X, Manual 197
E50417-H1040-C482-A9, Edition 03.2022