YOKOGAWA GD402G /M1, User Manual

Page: 32 / 171

<2. Installation, Wiring and Piping>
2-11
IM 11T03E01-51E
2.4.2 Cables Wired to Power Supply
The GD402G bears the CE marking. When using the meter in a place where the CE marking is
obligatory, or when performance meeting the CE marking requirements is needed, the following
wiring is required. (Note that the following wiring is not required when the power supply is 24 V
DC.)
● Install an external switch or circuit breaker to the power supply of the converter.
● Use an external switch or circuit breaker that is rated at 5 A and conforms to IEC 947-1 or
IEC 947-3.
● Install the external switch or circuit breaker in the same room as the converter is installed.
● The external switch or circuit breaker should be installed in a location that allows operator
access and should be marked a power supply switch to the converter.
Wiring is for supplying power supply that meets specifications to the GD402 converter.
Use a 3-conductor cable with a size of 1.25 to 2.5 mm
2
and an outside diameter of 8 to 16 mm
for 100-240 V AC type and a 2-conductor cable for 24 V DC type.
Wire the cable as instructed below:
(1) Strip the sheath 7 mm at the cable end to be connected to the converter.
(2) Connect the cable to terminals L, N, and G or ter and - on the converter.
Loosen the terminal screw, insert the stripped part of the wire into the terminal hole,and fix
the cable by tightening the screw. (adequate tightening torque: 0.4 N·m)
100 to 240 V AC
50/60 Hz
GD402

Converter
100-240 V AC type
SUPPLY
L N G
External circuit breaker
Rating: 5 A
Case-grounding
terminal
Case-grounding
terminal
SUPPLY
+ - G
GD402

Converter
24 V DC type
Use IEC947-1 or IEC947-3 compliant product.
24 V DC
Figure 2.12 Cables Wired to Power Supply