Allen-Bradley 1794-PS3 Flex I/O Power Supply 24VDC 3A

Product Overview

The Allen-Bradley 1794-PS3 is a Flex I/O power supply module. It delivers 24VDC output to power Flex I/O modules and adapters. This unit accepts 85-264VAC input. It works at 47-63 Hz. The nominal input is 120VAC or 230VAC. It provides 3A output in horizontal mounting. Other mountings give 2.8A. The module handles up to 10 adapters. It has overcurrent protection at 3.2A. Thermal dissipation is 41 BTU/hr. This power supply is part of the Rockwell Automation Flex I/O family.

Application Scenarios

Use the 1794-PS3 in distributed I/O systems. It fits industrial automation cabinets. It powers Flex I/O modules in manufacturing lines. It supports process control and machine control. It works in harsh environments with 5g vibration and 30g shock. The wide input voltage allows global use. It fits both 120V and 230V regions. It can mount on DIN rail or panel. Horizontal or vertical orientation works.

Technical Specifications

Input voltage: 85-264VAC. Input frequency: 47-63 Hz. Nominal input: 120VAC at 1.7A or 230VAC at 1.1A. Maximum input current: 1.9A. Output voltage: 24VDC nominal, range 20.4-27.6VDC. Output current: 3A horizontal, 2.8A other. Output power: 72W. Output ripple: 1200mV peak-to-peak. Overcurrent protection: 3.2A. Overvoltage protection: 35VDC. Isolation voltage: 2500VDC. Power dissipation: 12W. Thermal dissipation: 41 BTU/hr. Operating temperature: 0 to +55°C. Dimensions: 3.7 x 2.7 x 3.4 inches. Weight: 0.5 kg.

Installation & Maintenance Guide

Mount the 1794-PS3 on a DIN rail or panel. Ensure proper isolation between AC input and DC output. Use a dedicated circuit with overcurrent protection. Keep airflow clear around the module. Do not exceed maximum load. Check input voltage matches source. Periodically inspect for dust or damage. Replace if output voltage drifts. Test with a multimeter before use.

Packing List

The package includes one Allen-Bradley 1794-PS3 power supply module. It also contains mounting hardware and a quick reference guide. No cables are included. Ship via FedEx, UPS, or DHL.