<3. Installation and Wiring>
3-7
IM 12J05D02-01E
3.3
Wiring the power supply
3.3.1
General precautions
Make sure the power supply is switched off. Also, make sure that the power supply is correct for
the specifications of the EXA and that the voltage specified on the nameplate on the left side of
the DO402G is satisfied.
Local health and safety regulations may require an external circuit breaker to be installed. The
instrument is protected internally by a fuse. The fuse rating is dependent on the supply to the
instrument. The 250 VAC fuses should be of the “time-lag” type, conforming to IEC60127.
The internal fuse is located next to the power terminals (in the lower right hand corner).
WARNING
Use only a fuse of the specified current, voltage and type ratings to prevent fire. For fuse
replacement, refer to Section 7.3, “Fuse Replacement.”
3.3.2
Access to terminal and cable entry
Terminals 1 and 2 on the bottom terminal strip are used for the power supply. Guide the power
cables through the gland closest to the power supply terminals. Use 2.5 mm
2
(14 AWG) wires to
connect to the terminals.
We recommend that the cables be terminated with pin terminals (see figure 3.6).
Connect the wires as indicated in the wiring diagram (refer to figure 3.7).
CAUTION
Use cables whose outer diameter is 6 to 12 mm.
For power cables, use cables that comply with UL2556VM-1 or equivalent. Tighten the cables to
0.5 N•m torque.
2.2mm or less
Figure 3.6 Pin terminal
Table 3.1 Connection method
Power supply,
contact output
Others
Power supply
connection method
Pin form crimp terminal with the insulation sleeve
Conformity shape
2.5 mm2 (14 AWG)
0.13 to 2.5 mm2 (26 to 14 AWG)
Clamping torque
0.5 N•m
Crimp terminal
example
(Type)
Product made in
wide Muller: H2.5/7,
H2.5/10, H2.5/12,
H2.5/18, H2.5/14D,
H2.5/18D, H2.5/24D
Product made in wide Muller: (include the left model)
H0.25/5, H0.5/6, H0.5/10, H0.75/6, H0.75/10, H1/6, H1/10, H1.5/7, H1.5/10,
H1.5/12, H1.5/18, H0.14/10, H0.14/12, H0.25/10, H0.25/12, H0.34/10,
H0.34/12, H0.5/10, H0.5/12, H0.5/14, H0.5/16, H0.75/12, H0.75/14,
H0.75/16, H0.75/18H1/12, H1/14, H1/16, H1/18, H1.5/14, H1.5/16, H1.5/24
9th Edition: Aug. 05, 2015-00
Содержание EXA DO402G
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