3 - 5
IM 4H3B1-01E
3. INSTALLATION
3.2.2 Power Supply Wiring
1 Make sure the power switch is turned OFF and remove the transparent cover at the
rear of the µR1800.
2 Connect the power supply wires and the protective ground wire to the power terminals
and the ground terminals as shown in figure 3.4.
3 Replace the transparent cover.
Figure 3.4 Power Supply Wiring
NOTE • Do not apply power supply of 132 to 180VAC. This might affect the measuring
accuracy.
• In case of portable type, plug the female end of power cord into the socket on the rear
panel.
• To prevent an emission of electromagnetic disturbances, separate the power supply
wires from the other wires at least 0.1m. Over 0.5m is recommended.
To prevent an electric shock, ensure the main power supply is turned OFF and
connect the ground terminal using a class 3 resistance of 100Ω or less.
For power and ground wiring termination, use “crimp on” lugs (for 4mm screws)
with insulation sleeves (see figure 3.5).
To prevent fire, use 600V PVC insulated wire (AWG18) for power and ground
wiring (cross sectional area of 0.83mm
2
or thicker, anti-galvanic corrosion finish,
insulation thickness should be more than 0.8mm, insulation resistance should
be more than 50MΩKm at 20°C, approved EN60 320 (VDE0625), and do not
remove the transparent cover.
Make sure to apply a power switch in the power supply cord with the following
characteristics:
Others than /P1 model
• rated power current > 1A
• rated rush current > 60A
• fuse(s) of 2A to 15A is (are) necessary.
/P1 model
• rated power current > 3A
• rated rush current > 70A
• fuse(s) of 5A to 15A is (are) necessary.
The power switch and fuse used in the power supply cord should be
• CSA approved (for use in North America)
• VDE approved (for use in Europe).
3.2 Wiring
!
L
N
Power supply wires
Protective ground wire
＋
−
DC24V
for /P1 model
WARNING
To Next Page
Loading...
Need help?
General
