ACA-20PC 查看數據表（PDF） - DATEL Data Acquisition products

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ACA-20PC

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

DATEL Data Acquisition products  

ACA-20PC Series

3½ D I G I T , L E D D I S P L A Y , A C A M M E T E R S

Typical Wiring Diagrams

First pass and carefully dress one external load wire through the on-

board CT (L1). Then connect the ac supply and load wires to TB1 as

shown. If required, verify that correct line-power polarities are applied

to the external load (see Technical Note 4). Ensure all wires are

stripped and terminals torqued correctly. For proper operation, pass

only one load wire through the on-board CT’s center hole.

Panel Cutout and Bezel Installation

BEZEL INSTALLATION

FUSED

85-264Vac

POWER

ACA-20PC-1-AC1-RL

ACA-20PC-2-AC1-RL

FUSED

85-264Vac

POWER

TB1 A B

TB1 A B

PANEL

L1

L1

TO LOAD

85-264Vac TO LOAD

Figure 3. 2A and 20A, 85-264V AC-Powered Models

With Auxilliary Load Connections

BEZEL

GASKET

(optional)

DMS-BZL4 BEZEL

#2-56 INSERT

0.156 (3.96) DEEP

FRONT VIEW

0.187

(4.75)

ACA-20PC-X-ACX

TO

AC LOAD

AB

TB1

L1

AC POWER

SUPPLY

AC SUPPLY

Figure 4. All Other AC-Powered Models

ACA-20PC-X-DCX

+ DC POWER

– SUPPLY

1.280

(32.51)

1.826 (46.38)

RECOMMENDED DRILL AND PANEL CUTOUT DIMENSIONS

INTERNAL CORNER RADII:

0.032 (0.81) MAX.

0.116 (2.95)

1.07

(27.18)

0.838

(21.29)

TO

AC LOAD

AB

TB1 + –

L1

AC SUPPLY

Figure 5. All DC-Powered Models

1.336 (33.93)

1.350 (34.29)*

1.626 (41.30)

0.093 (2.362) DIAMETER (4 REQUIRED)

ONLY WHEN USING OPTIONAL BEZEL ASSEMBLY

0.145 (3.68)

0.138 (3.51)*

* Dimensions for ACA-20PC-4-XXX 100A model.

DATEL, Inc., Mansfield, MA 02048 (USA) • Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 • E–mail: sales@datel.com • Internet: www.datel.com

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