ACA-20PC-4-AC1-RL-L-C Murata Power Solutions Inc, ACA-20PC-4-AC1-RL-L-C Datasheet

ACA-20PC-4-AC1-RL-L-C

Manufacturer Part Number

ACA-20PC-4-AC1-RL-L-C

Description

AC Ammeter 100A CT AC Pwr

Manufacturer

Murata Power Solutions Inc

Type

Digital, LED-Display AC Ammeters with Built-in Current Transformersr

Datasheet

1.ACA-20PC-3-AC1-RL-C.pdf (6 pages)

Specifications of ACA-20PC-4-AC1-RL-L-C

Equipment Type

Digital, LED-Display AC Ammeters with Built-in Current Transformers

Display Type

3 - 1/2 Digit LED

Dimensions

2.53 in L x 1.38 in W x 0.88 in H

Mounting Style

Panel

Primary Voltage Rating

120 VAC

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

Current page: 1 of 6
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FEATURES

■

www.murata-ps.com

SIMPLIFIED SCHEMATIC DIAGRAM

Built-in Current Transformers for direct measurement

of 0 to 2/20/50/100 Amps

Functionally complete:

8 different models

Subminiature, 1.38" x 0.88" package

Easy-to-read, 0.37"/9.4mm digits

AC powered models 85-264Vac @ 50/60Hz

"Self-powered" 85-264Vac, 2A and 20A models feature

built-in load connections

+5-40V dc powered models

2000V isolation; UL/CSA recognized

On-board current transformers

Scaling/interface circuitry

Precision A/D converters

Bright red LED displays

www.murata-ps.com/rohs

For full details go to

TRANSFORMER

CURRENT

BUILT-IN

www.murata-ps.com/dpm

LOAD CURRENT

MEASURED AC

CONVERTER

RMS-to-DC

DATEL's new ACA-20PC Series are the ﬁ rst digital ac ammeters to incorporate on-board current

transformers (CT’s), and they are amazingly easy to use. Simply pass the current-carrying load

wire through the ACA-20PC’s on-board CT, apply power to the meter's two supply terminals,

and you’re instantly measuring ac currents over one of four ranges (0-2A with 1mA resolu-

tion, 0-20A with 10mA resolution, or 0-50A and 0-100A with 100mA resolution). Absolutely no

external components, such as expensive low-value shunts or 5A "donut" CT’s, are required.

minimal loads (50mA max. and 120mA max., respectively) on their supplies. All models employ

auto-zeroing circuits, precision bandgap references, and super stable thin-ﬁ lm resistors for

unsurpassed accuracy (±0.15%FS) and stability.

mate the CT’s output to a precision (3½ digit) A/D converter. The A/D's output goes directly to

drivers for the meters’ large (0.37"/9.4mm digit height), easy-to-read, LED displays. AC-pow-

ered units have on-board AC/DC converters, and wide-range dc-powered units have on-board

linear regulators. AC-powered models can be powered by the same ac supply whose current

they are monitoring. The 2A and 20A, 85-264Vac, 50/60Hz ("AC1") models feature additional

on-board terminal blocks to supply power to the external load. All models provide 2000Vdc iso-

lation between the measured ac current and their power supply, and all are UL/CSA recognized.

behind-the-panel installation depth is approximately 2 inches.

(L1)

Meters are ac powered (120/220Vac @ 50/60Hz) or dc powered (+5-40V) and impose

The functionally complete ACA-20PC ammeters provide all the scaling/interface circuitry to

Each meter is housed in a subminiature, 1.38" x 0.88", epoxy-encapsulated package. Total

–

AC INPUT POWER

A/D CONVERTER

CONVERTER

CAL.

POWER

3½ DIGIT

Digital, LED-Display AC Ammeters with

TB1

–V

Figure 1. ACA-20PC Series simpliﬁ ed schematic

16 Feb 2011 MPM_ACA_20PC.B08 Page 1 of 6

Built-in Current Transformers

ACA-20PC Series

LED DISPLAY

email: sales@murata-ps.com

Related parts for ACA-20PC-4-AC1-RL-L-C

ACA-20PC-4-AC1-RL-L-C Summary of contents

Page 1

... For full details go to www.murata-ps.com/rohs DATEL's new ACA-20PC Series are the ﬁ rst digital ac ammeters to incorporate on-board current transformers (CT’s), and they are amazingly easy to use. Simply pass the current-carrying load wire through the ACA-20PC’s on-board CT, apply power to the meter's two supply terminals, and you’ ...

Page 2

... Speciﬁ ed full-scale currents are those passing through the built-in CT's “000” “001” Counts ±0.4 ±1 Vdc 120 264 Vac ➁ For the ACA-20PC-2-AC1-RL, if the load is connected to the meter's on-board – +40 Vdc ➃ All speciﬁ ed maximum power supply currents are steady-state values +12 mAdc ➄ ...

Page 3

... If user calibration is necessary, it should be performed by qualiﬁ ed technical personnel. Calibration is performed with potentially lethal voltages applied to the ACA-20PC and its associated wiring, with the speciﬁ ed full-scale current ﬂ owing through the ammeter’s built-in current transformer. ...

Page 4

... ACA-20PC Series Digital, LED-Display AC Ammeters with Built-in Current Transformers Step 4. FUSED AC POWER SUPPLY ACA-20PC-X-ACX TO AC LOAD AC SUPPLY Figure 4. All Other AC-Powered Models + FUSED DC POWER SUPPLY – ACA-20PC-X-DCX + – LOAD AC SUPPLY Figure 5. All DC-Powered Models email: sales@murata-ps.com 16 Feb 2011 MPM_ACA_20PC.B08 Page ...

Page 5

... FRONT VIEW CAL. email: sales@murata-ps.com 16 Feb 2011 MPM_ACA_20PC.B08 Page 0.80 (20.3) 0.88 (22.4) 1.32 (33.5) BACK VIEW 0.80 (20.3) 0.88 (22.4) 1.32 (33.5) BACK VIEW ...

Page 6

... INTERNAL CORNER RADII: 0.032 (0.81) MAX. 1.07 PANEL CUTOUT (27.18) 1.336 (33.93)* 1.626 (41.30) * 1.350 (34.3) for ACA-20PC-4-XXX 100A model . with pc-board mounted CTs © 2011 Murata Power Solutions, Inc. email: sales@murata-ps.com 16 Feb 2011 MPM_ACA_20PC.B08 Page 1.280 0.116 (2.95) 0.838 (21.29) 0.145 (3.68) ...

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