وصف

Description

The Allen-Bradley 1769-PA4 is a high-performance AC power supply module designed for use within the CompactLogix 1769 I/O system. This module provides the necessary DC power to the I/O bus, supporting a wide range of industrial automation applications. It features a switch-selectable input voltage range, allowing for flexibility in global power environments. The 1769-PA4 is engineered for reliability in open-style enclosures, ensuring consistent power delivery to connected I/O modules.

Features

• Switch-selectable input voltage range (85 to 265V AC or 170 to 265V AC).
• Provides 4.0 A at 5V DC and 2.0 A at 24V DC output current capacity.
• Supports a power supply distance rating of 8, allowing up to 16 modules total (8 on either side).
• Designed for operation in 47 to 63 Hz frequency ranges.
• Compact, open-style chassis for efficient integration into control cabinets.

Technical Specifications

Model	1769-PA4
Input Voltage	85-265V AC / 170-265V AC (Selectable)
Input Frequency	47-63 Hz
Output Current (5V DC)	4.0 A
Output Current (24V DC)	2.0 A
Power Consumption	200 VA @ 120V AC / 240 VA @ 240V AC
Power Dissipation	8 W @ 60 degC
Max Inrush Current	25 A @ 132V AC
Wire Size	22 to 14 AWG (Solid)

Installation Guidelines

• Ensure the system power is disconnected before installing or removing the power supply module.
• Mount the module on a standard DIN rail or panel as per the CompactLogix system layout requirements.
• Maintain adequate clearance around the module to allow for proper ventilation and heat dissipation.
• Use appropriate wire gauges (22 to 14 AWG) for terminal connections to ensure secure electrical contact.
• Observe the power supply distance rating; do not exceed 8 modules on either side of the power supply to prevent bus power overload.
• Follow standard ESD (Electrostatic Discharge) precautions when handling the module to prevent internal component damage.

FAQ

What is the maximum number of modules this power supply can support?

The 1769-PA4 has a power supply distance rating of 8. This means you can connect up to 8 I/O modules on either side of the power supply, for a maximum total of 16 modules in the system.

Is the input voltage fixed?

No, the input voltage is switch-selectable between 85-265V AC or 170-265V AC, allowing the module to adapt to different regional power standards.

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