WAGO 2857-570/024-001, Руководство пользователя, Страница: 73 / 120

2857-570/024-001 Connection
Product manual | Version: 2.0.0 73
3-Phase Power Measurement Module, 1 A
Table 73: Common Mains Supply Systems and Line Voltages within the scope of UL
3-phase 4-
wire systems
with earthed
neutral con-
ductor
1
3-phase 4-
wire systems
with no
earthed neu-
tral conduc-
tor 2;
1, 2, 3
3-phase 3-
wire system
not earthed 3-phase 3-
wire systems
with earthed
phase 1-phase 2-
wire system,
AC or DC Split 1-phase
3-wire sys-
tem, AC or
DC
1
System volt-
age
5
TT system:
TN-C-S sys-
tem:
IT system:
120 V / 208 V
127 V / 220 V
120 V/ 208 V 110 V, 115 V
120 V, 127 V
100 V
120 V
100 V
110 V, 115 V
120 V, 127 V
100 V / 200 V
4
110 V / 220 V
115 V / 230 V
120 V / 240 V
150 V
220 V / 380 V
230 V / 400 V
240 V / 415 V
260 V / 440 V
277 V/ 480 V
230 V / 400 V
277 V/ 480 V
200 V
220 V, 230 V,
240 V, 277 V
200 V
240 V
220 V
230 V
240 V
220 V / 440 V
240 V/ 480 V
300 V
1)
Voltage specifications with forward slash:
1. Voltage specifications: Voltage between line conductor and neutral conductor
2. Voltage specifications: Voltage between the line conductors
2)
R is an impedance that may be connected between neutral conductor and ground. This impedance is nor-
mally 1500 Ω.
3)
When monitoring the isolation, the neutral conductor is considered to be earthed.
4)
These values are commonly used in Japan
5)
The system voltage is derived from the line-to-neutral voltage for common mains supply systems and is used
for determining insulation coordination.
The following table shows the Common Mains Supply Systems and Line Voltages which
are outside the scope of UL, for further information see
8
Special Requirements for
Measurements with Higher Voltages outside the scope of UL [ } 21] .