ACA5-20PC Series
5 Amp Input LED-Display AC Ammeters
C
®
US E156931
FEATURES
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Scales and displays the output of 50:5A to 2000:5A
current transformers
14 ranges (0-50 Amp to 0-2000 Amp)
2 Power options, 28 models
Functionally complete:
On-board 5A current transformers
Scaling/interface circuitry
Precision A/D converters
Bright red or green LED displays
Subminiature, 1.38" x 0.88" package
Easy-to-read, 0.37"/9.4mm digits
AC powered models: 120/220Vac @ 50/60Hz
AC models can be "self-powered"
+5-40V dc powered model
2000V isolation; UL/CSA recognized
Digital replacements for analog ammeters
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ACA5-20PC Series AC Ammeters are designed to scale and digitally display the output of
standard, 5A-output current transformers (50:5A, 500:5A, 1000:5A, etc.). Simply pass the
secondary/output wires of the "primary" CT through the ACA5-20PC's on-board CT, apply
power to the meter, and you're instantly measuring ac currents over one of 14 ranges from
0-50A (with 100mA resolution) to 0-2000A (with 1A resolution). Because they accept out-
puts from previously installed high-current CT's, ACA5-20PC's can instantly bring modern
digital precision to older ac ammeters.
The functionally complete ACA5-20PC ammeters incorporate scaling/interface circuitry
to mate the on-board CT to a precision (3�½ digit) A/D converter. The A/D's output directly
drives the meters' large (0.37"/9.4mm digit height), easy-to-read, LED displays. All models
employ auto-zero circuits, precision bandgap references, and super stable metal-film resis-
tors for unsurpassed accuracy (±0.15%FS) and stability.
ACA5-20PC meters are either ac (120/220Vac @ 50/60Hz) or dc (+5-40V) powered.
AC models can be powered by the same ac supply whose current they are monitoring. All
ACA5-20PCs provide 2000Vdc isolation between the measured ac current and their power
supply, and all models are UL/CSA recognized.
Each meter is housed in a subminiature, 1.38" x 0.88", epoxy-encapsulated package
whose behind-the-panel installation depth is 2 inches. Display color options include stan-
dard red, high-intensity red, and standard green. Each meter is supplied with a plastic bezel
assembly with sealing gaskets (MPS DMS-BZL4-C).
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SIMPLIFIED SCHEMATIC DRAWING
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For full details go to
www.murata-ps.com/rohs
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www.murata-ps.com
Technical enquiries
email: sales@murata-ps.com, tel:
+1 508 339 3000
MPM_ACA520PC_B02
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