Kikusui IB022853, User Manual

Page: 11 / 52

KPM1000 Installation and Preparation
11
Wiring the measurement circuit
Connecting the current input terminal
 Input terminal specifications
• The maximum allowable current is 24 Arms. You cannot use the input terminal for values
that exceed the maximum value.
• The maximum isolation voltage is 300 V. You cannot use the input terminal for values
that exceed the maximum value.
• The maximum voltage between the voltage input terminals is 300 V. You cannot use the
input terminal for values that exceed the maximum value.
• The voltage input terminal input impedance is approximately 6 M
Ω
. The current input
terminal input impedance is approximately 2 m Ω .
 Wires to use
Select the wires to match the input current of the measured item (load). To provide some
outlines for the wires that you can select from, the following chart presents the nominal cross-
sectional area and allowable current of various wires. Use wires whose withstand voltage is
more than sufficient for the maximum rated input voltage.
 Connecting the wires
• The current input terminal has polarity (terminal I and ± terminal). Use these terminals as
is necessary depending on the measurement circuit.
• Terminate the wires with crimping terminals.
• Use crimping terminals that have a 6 mm diameter screw mounting hole and are
compatible with the wires.
• Connect the wires to the current input terminal.
• To prevent electric shock, be sure to attach the terminal cover.
Nominal cross-
sectional area (mm
2
)
AWG
Reference cross-
sectional area (mm
2
)
Allowable current A (Ta = 30 °C)
1
1 Excerpt from Japanese laws related to electrical equipment.
0.9 18 0.82 17
1.25 16 1.31 19
2 14 2.08 27
3.5 12 3.31 37
5.5 10 5.26 49
Current input terminals
I terminal
± terminal
Terminal cover
Screw (M6x12)
Tightening torque : 3.0 N
・m