Allen-Bradley 1769-PA2

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Installation Instructions

Original Instructions

Compact I/O Expansion Power Supplies

Catalog Numbers

1769-PA2, 1769-PB2, 1769-PA4, 1769-PB4

Topic Page

Summary of Changes 2

About the Power Supplies 7

Before You Begin 7

Assemble the System 10

Mount an I/O Expansion Power Supply 12

Verify Your System Power 14

Power Considerations 15

Use a Master Control Relay 17

Schematic (Using IEC Symbols) 18

Schematic (Using ANSI/CSA Symbols) 19

Connect the Power Supplies 19

Connect Field Wires 21

Replace the Fuse 24

Temperature Derating 25

Power Dissipation 29

Specifications 31

Additional Resources 34

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Allen-Bradley 1769-PA2 Specifications

General