Chapter 2 Installation
Accura 2300S/2350-1P3FSC User Guide
Page 40
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Step 2: Accura 2300S Wiring
Accura 2300S Voltage Wiring
Fig 2.19 Voltage Wiring of Accura 2300 S
Voltage Input
Item
Description
Connector name
V
1
, V
2
, V
3
, V
N
Connector type
Terminal block
1
Wire specifications
2.1
–
3.5 mm
2
(14
–
12 AWG), copper or aluminum
Rated temperature of the wire
Above 70
˚
C
Measuring range
2
(Accuracy guaranteed)
AC 60
–
600 V Line-to-line
Accuracy
±
0.2 % Reading
Minimum measured value
AC 5 V Line-to-neutral
Maximum measured value
AC 660 V Line-to-line
Frequency range
50/60 Hz, 42
–
69 Hz
Voltage connection
3-Phase 4-Wire, 3-Phase 3-Wire, 1-Phase 3-Wire, 1-Phase 2-Wire connection
Burden
0.02 VA/phase @ 220 V
Withstand voltage
AC 2,000 V RMS, 60 Hz for 1 minute
Impedance
10 M
Ω
/phase
Measurement category
Ⅲ
1. The maximum screw tightening torque of the barrier-type terminal block is 1.36 Nm (14 kgf-cm, 12 lbf-in).
2. It indicates the
device’s
input voltage range. Thus, when a PT is used externally, the primary voltage is calculated
by multiplying the input voltage by the PT ratio.
Note
If the voltage input is out of the measurement range, it can affect accuracy. External PT(Potential
Transformer) should be used when measuring voltages greater than voltage input specifications.
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