ACA-20PC Datasheet, PDF (2/6 Pages) Murata Power Solutions Inc. – Digital, LED-Display AC Ammeters with Built-in Current Transformers

Performance/Functional Specifications
Typical at TA = +25°C, unless otherwise noted. ➀
Full-Scale Current (45-450Hz) ➁
Min. Typ. Max. Units
ACA-20PC-1-XXX-XX
–
– 1.999 Amps
ACA-20PC-2-XXX-XX ➂
–
– 19.99 Amps
ACA-20PC-3-XXX-XX
–
–
50.0 Amps
ACA-20PC-4-XXX-XX
–
– 100.0 Amps
DMS-30798-C
–
–
30.0 Amps
Overcurrent Rating ➁
1.5 x rated full-scale current
Performance
Sampling Rate
2.5 reading per second
Accuracy ➁
±0.15%FS ±6 Counts
Measurement Type
Sine wave input, full-wave averaging, rms
calibrated
Temperature Drift (0 = +60°C)
–
±0.2 ±0.4 Cnts/°C
Zero Reading (Vin = 0 Volts)
“–001” “000” “001” Counts
Dielectric Withstanding Voltage
–
±0.4 ±1
Vdc
Power Supply Voltage ➄
ACA-20PC-X-AC1-RL (47-99Hz)
85 120 264 Vac
ACA-20PC-X-DC1-RL
+4.75 –
+40 Vdc
Power Supply Current ➃
ACA-20PC-X-AC1-RL (47-99Hz)
–
30
50
mA
ACA-20PC-X-DC1-RL
–
+8 +12 mAdc
Power Supply Terminal Block
ACA-20PC-1-AC1-RL and ACA-20PC-2-AC1-RL
(2A and 20A ac-powered models with 4-position terminal blocks):
Wire Size and Type
12-20AWG (solid), 14-20AWG (stranded)
Insulation Strip Length
0.25 inches
Screw Tightening Torque
4.4 pounds/inches (0.5Nm)
Maximum Rated Current
20A with 12AWG solid wire; 15A with
14AWG solid or stranded wire
Maximum Rated Voltage
630V (VDE 0110-V. Group 2)
250V (VDE 0110-V Group 3)
ACA-20PC-X-XXX-XX
(All other ac or dc-powered models with 2-position terminal blocks):
Wire Size and Type
16-24AWG (solid or stranded)
Insulation Strip Length
0.25 inches
Screw Tightening Torque
3.6 pounds/inches (0.5Nm)
Display
Display Type and Size
3½ digit, 0.37"/9.4mm high LED
Overrange Indication
“1_ _ _“
Decimal Point
Fixed, model dependent
Physical/Environmental
Operating Temperature
0
–
+60
°C
Storage Temperature
–40
–
+75
°C
Humidity (non-condensing)
0
–
95
%
ACA-20PC Series
Digital, LED-Display AC Ammeters with
Built-in Current Transformers
Physical/Environmental
Case Material
Dimensions
Weight:
ACA-20PC-1-XXX-XX
ACA-20PC-2-XXX-XX
ACA-20PC-3-XXX-XX
ACA-20PC-4-XXX-XX
DMS-30798-C
Polycarbonate
1.38”W x 0.88”H. Depth is model dependent
(see mechanical specification)
1.1 ounces (31 grams)
1.1 ounces (31 grams)
1.3 ounces (37 grams)
1.5 ounces (43 grams)
1.0 ounces (28 grams)
➀ The ACA-20PC-1-AC1-RL and ACA-20PC-2-AC1-RL have 4-position on-board
terminal blocks. All other models have 2-position terminal blocks.
➁ Specified full-scale currents are those passing through the built-in CT's
primary(load) circuit, over the frequency of 45-450Hz. The Overcurrent Rating
is a continuous rating that applies to the measured ac load current. It does
not apply to any circuitry external to the meter. Accuracy is guaranteed to the
rated current.
➁ For the ACA-20PC-2-AC1-RL, if the load is connected to the meter's on-board
4-position terminal block, the 20A full scale range requires 12AWG solid
copper wire on all connections. If 14AWG solid copper wire is used, the current
should be limited to 15A. See Figure 3.
➃ All specified maximum power supply currents are steady-state values.
AC‑powered models can draw higher surges at initial turn-on.
➄ Maximum reverse polarity protection on "DC1" models is –40Vdc.
Ordering Information
ACA - 20PC - 1 - AC1 - RL - L - C
(45-450Hz)
Input Range:
1 = 1.999A
2 = 19.99A
3 = 50.0A
4 = 100.0A
RoHS
Leaded CT (100A model)
LED Color:
RL = Red Standard
BL = Blue Standard
Power Supply:
PGL = Green Standard
AC1 = 85-264Vac@50/60Hz
DC1 = +5-40Vdc
DMS-30798-C: 30Amp model with a wire lead CT and “-AC1”
power supply specifications. See Mechanical section for dimensions.
Accessories: DMS-20-CP Panel cutout punch
A DMS-BZL4-C bezel assembly with sealing gasket is supplied with each ammeter.
Ḥ
For full de
www.murata
www.murata-ps.com
Technical enquiries email: [e-mail], tel: [phone]
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