IMR01M01-E16
7
There are neither fuses nor power switches in the power circuit of this instrument. Therefore install the fuses and
switches near the instrument, if necessary.
Use wires satisfying the rated current capacity.
Firmly tighten each terminal screw with the tightening torque specified below. Otherwise, electric shock, fire or
heat generation may result.
When using a solderless terminal lug, use ring type.
Ring type solderless terminal size and tightening torque
Item
Power terminals
(4, 5)
Main circuit terminals (
2/T1, 1/L1)
20 A and 30 A 45 A and 60 A 80 A and 100 A
φ 3.2 mm or more 4.3 mm or more 6.4 mm or more 8.4 mm or more
D (mm) 5.5 mm or less 9.5 mm or less 13.2 mm or less 22.6 mm or less
Recommended
tightening torque
0.4 N⋅m
(4 kgf⋅cm)
1.6 N⋅m
(16 kgf⋅cm)
3.8 N⋅m
(38 kgf⋅cm)
9.0 N⋅m
(90 kgf⋅cm)
Make sure that the any wiring such as solderless terminal is not in contact with the adjoining terminals.
Wiring diagram of main circuit
Ring type
solderless
terminal
φ D
Main circuit
terminals
(2/T1, 1/L1)
Input and power
supply terminals
(1 to 5)
20 A/30 A
45 A/60 A
80 A/100 A
M4 size
M6 size M8 size
M3 size
Power supply
100 to 240 V AC
(50/60Hz)
Input and
power supply
terminals
Power supply
100 to 240 V AC
(50/60 Hz)
V
Output voltmeter (optional)
Can use it only in Phase control.
THV-1
Main circuit
terminal (2/T1)
Instrument power supply line (To terminal No. 4)
Always conduct wiring so that the
phase of the main circuit (2/T1)
coincides with that of terminal No. 4
and the phase of the main circuit
(1/L1), with that of terminal No. 5.
Otherwise the instrument may not
function properly or the load may be
damaged.
Table of calorific values
Terminal screws size
Load
Main circuit terminal (1/L1)
Instrument power supply line (To terminal No.5)
Fast-blow fuse
Rating current
20 A 30 A
100 to
240 V AC
30 W 43 W
45 A
63 W
60 A
84 W
80 A
112 W
100 A
140 W
1 2 3 4 5
N L
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