ACA5-20PC Datasheet, PDF (2/5 Pages) Murata Power Solutions Inc. – 5 Amp Input LED-Display AC Ammeters

ACA5-20PC Series
5 Amp Input LED-Display AC Ammeters
Performance/Functional Specifications
Typical at TA = + 25°C, unless otherwise noted.
Full-Scale Current ➀ ➁
Min. Typ. Max. Units
All Models
–
–
5.0 Amps
Overcurrent Rating ➀
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
“–001” “000” “001” Counts
Dielectric Withstanding Voltage
2000
–
–
Vdc
Power Supply Voltage ➂
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
Wire Size and Type
16-22AWG (solid or stranded)
Insulation Strip Length
0.25 inches
Screw Tightening Torque
3.6 pounds/inches (0.4Nm)
Display
Display Type and Size
3½ digit, 0.37"/9.4mm high LED
Overrange Indication
“1_ _ _“
Decimal Point
Model dependent. See Ordering Info.
Physical/Environmental
Operating Temperature
0
–
+60
°C
Storage Temperature
–40
–
+75
°C
Humidity (non-condensing)
0
–
95
%
Case Material
Polycarbonate
Dimensions
1.38”W x 0.88”H. Depth is model depen-
dent (see mechanical specification)
Weight: (All models)
1.1 Ounces (31 grams)
➀ The specified Full-Scale Current is the current carried by the single wire passing through
the center hole of the ACA5-20PC's on-board CT. It is not the load current ultimately being
measured. the Overcurrent Rating is a continuous rating that applies to the Full-Scale
Current. It does not apply to any circuitry external to the meter.
➁ Listed accuracy specifications apply over the range of the Rated Full-Scale Current over
frequencies of 45-450Hz.
➂ Maximum reverse polarity protection on "DC1" models is –40Vdc.
➃ All specified maximum power supply currents are steady-state. AC-powered models can
draw larger surges at initial turn on.
Ordering Information
ACA5 - 20PC - 1 - AC1 - RL - C
Input Range:
(45-450Hz)
1 = 50.0A
2 = 75.0A
3 = 100.0A
4 = 150.0A
5 = 199.9A
6 = 250A
7 = 300A
8 = 400A
9 = 500A
10 = 600A
11 = 750A
12 = 1000A
13 = 1500A
14 = 1999A
5A CT Partno.
7020-01036-0
7020-01037-0
7020-01038-0
7020-01039-0
7020-01040-0
7020-01041-0
39-3681407 *
39-3681408 *
39-3681409 *
7020-01042-0
7020-01043-0
7020-01044-0
7020-01045-0
7020-01046-0
* Not RoHS Compliant
Add -C for RoHS
LED Color:
RL = Red Standard
Power Supply:
AC1 = 85-264Vac@50/60Hz
DC1 = +5-40Vdc
Accessories: DMS-20-CP Panel cutout punch
A DMS-BZL4 bezel assembly with sealing gasket is supplied with each ammeter.
Matching 5A Current Transformers: 5A current transformers for all ACA5-20PC
ac ammeters are available from Murata Power Solutions at nominal cost. For
technical information, visit www.murata-ps.com, select Digital Panel Meters,
then Accessories.
TECHNICAL NOTES
IMPORTANT! To ensure safe and reliable operation, ACA5-20PC
ammeters must be installed and serviced by qualified technical per-
sonnel. Contact Murata Power Solutions if there is any doubt regarding
ammeter installation and/or operation.
1. Measurement Type: ACA5-20PC ac ammeters employ a full-wave-
rectified, average responding, rms-calibrated circuit to measure the
stepped-down output of their built-in L1 current transformer (CT) .
Stated accuracy specifications are measured using a sine-wave cur-
rent at or close to the full-scale input level, at nominal line frequency.
2. Calibration: Periodic recalibration of ACA5-20PC ammeters is not
required under normal, indoor operating environments. If user calibra-
tion is necessary, it should be performed by qualified technical personnel.
Calibration is performed with potentially lethal voltages applied to the
ACA5-20PC and its associated wiring, with the specified full-scale
current flowing through the ammeter’s built-in current transformer.
A plastic, fully-insulated adjusting tool must be used to access the
recessed calibration potentiometer located on the back of the meter
(see Mechanical Specifications). Contact MPS if additional information
is required regarding calibration, setup, or any other technical issue
pertaining to ACA5-20PC ammeters.
3. Wire Gauges and Fusing: Wires specified in the Functional Specifica-
tions section must be used for making connections to ACA5-20PC
Series ammeters. All power-supply and load wiring must be rated for
the supply voltages and currents they will conduct and must comply
with any code or application-mandated requirements pertaining to the
user’s specific installation.
For fu
www.mur
www.murata-ps.com
Technical enquiries email: [e-mail], tel: [phone]
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