Iskra WM3M4 - Electrical Characteristics of Input

TECHNICAL DATA
46
User’s Manual WM3M4 &WM3M4C
7.3 Electrical characteristics of input
Inputs and outputs
Measuring input
Type (connection):
three-phase (4u)
Reference current (

):
5 A
Maximum current (

󰇜:
40 A
Minimum current (

):
0.25 A
Transitional current (

):
0.5 A
Starting current:
20 mA
Power consumption at 

0.1 VA
Nominal voltage (

):
3x230 V/400 V (-20 %...+15 %)
Power consumption per phase at 

:
< 8 VA
Nominal frequency (

):
50 Hz and 60 Hz
Minimum measuring time:
10 s
Security (valid only for WM3M4C)
Hash generation:
SHA256
RS485 Serial communication
Type:
RS485
Speed:
1200 bit/s to 115200 bit/s (default 115200 bit/s)
Frame:
8, N, 1
Protocol:
MODBUS RTU
Address:
33 – (default)
Optical communication
Type:
IR
Connection:
via WM-USB adapter
Speed:
19200 bit/s
Frame:
8, N, 1
Protocol:
MODBUS RTU
Address:
33 – (locked)
Remark:
All settings are fixed