Overview
The Allen Bradley 1769-PA4 is a Compact I/O power supply designed for Rockwell Automation’s CompactLogix and Compact I/O systems. It delivers reliable backplane power to support controllers and I/O modules in industrial automation applications. It is widely used in machine control, process systems, and distributed industrial environments where stable power distribution is required.
General Information
Part Number: 1769-PA4
Manufacturer: Allen-Bradley (Rockwell Automation)
Brand: Allen-Bradley
Country of Origin: USA
Series: Compact I/O / CompactLogix
Product Type: AC Power Supply Module
Mounting Type: DIN rail installation within Compact I/O chassis
Function: Provides backplane power for CompactLogix controller and I/O modules
Design: Industrial-grade modular power unit for automation systems
Power Specifications
Input Voltage: 85–264 V AC, 47–63 Hz
Output Power: Backplane power for 5V DC and 24V DC system rails
Output Capacity: Supports higher load Compact I/O configurations
Efficiency: High-efficiency industrial power conversion design
Protection: Overvoltage, overload, and short-circuit protection
Start-Up: Controlled inrush current limiting for system stability
Communication & Interface
Interface Type: Backplane power distribution (no external communication ports)
System Integration: Direct connection to CompactLogix chassis backplane
Status Indication: LED indicators for power and system status
Diagnostics: Basic power status monitoring via module indicators
Control Function: No protocol communication (pure power supply module)
Environmental
Operating Temperature: 0 to 60 °C
Storage Temperature: -40 to 85 °C
Humidity: 5% to 95% non-condensing
Vibration Resistance: Industrial standard IEC-rated vibration tolerance
Protection Rating: Suitable for IP20 control cabinet installation
Installation Environment: Clean industrial enclosure required
Dimensions & Weight
Dimensions (H × W × D): 118 × 70 × 87 mm
Weight: 0.63 kg
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