PLZ-4WL
17
1
In
st
al
la
tion and
Pr
ep
ar
at
ion
Load wiring
If the wiring that you use for the load has a high resistance, the voltage will drop significantly
when current flows, and the voltage at the load input terminals may fall below the minimum
operating voltage. Using the following table as a reference, select wiring whose nominal
cross-sectional area is as thick as possible.
A wire’s temperature is determined by the resistive loss based on the current, the ambient
temperature, and the wire’s external thermal resistance. The following table shows the
current capacity of heat-resistant vinyl wires that have a maximum allowable temperature of
60
C when one of the wires is separated and stretched out horizontally in air in an ambient
temperature of 30
C. The current must be reduced under certain conditions, such as when
vinyl wires that have a low heat resistance are used, when the ambient temperature is 30
C
or greater, or when wires are bundled together and little heat is radiated.
WARNING
• Improper use of load wires may lead to fire. Use load wires whose capacity is
adequate for the PLZ-4WL’s rated output current.
• Possible electric shock. Use load wires whose rated voltage meets or exceeds the
PLZ-4WL’s isolation voltage. For details on the PLZ-4WL’s isolation voltage, see
Chap.7 "General specifications".
CAUTION
• Use a load wire with sufficient diameter for the current as well as non-flammable or flame-
resistant cover.
Nominal Cross-
Sectional Area
[mm
2
]
AWG (Reference Cross-
Sectional Area) [mm
2
]
Allowable Current
1
[A] (Ta = 30
C)
1
Excerpts from Japanese laws related to electrical equipment.
Kikusui-
Recommended
Current [A]
2
14
(2.08)
27
10
3.5
12
(3.31)
37
–
5.5
10
(5.26)
49
20
8
8
(8.37)
61
30
14
6
(13.3)
88
50
22
4
(21.15)
115
80
30
2
(33.62)
139
–
38
1
(42.41)
162
100
50
1/0
(53.49)
190
–
60
2/0
(67.43)
217
–
80
3/0
(85.01)
257
200
100
4/0
(107.2)
298
–
125
–
–
344
–
150
–
–
395
300
200
–
–
469
–
250
–
–
556
–
325
–
–
650
–
