FLEX I/O Power Supply 1794-PS3 | Allen-Bradley 24VDC

Overview
The 1794-PS3 is an Allen-Bradley FLEX I/O power supply designed to deliver stable 24V DC output for industrial control systems. It is optimized for compact installation with open-style mounting and provides high reliability across a wide input voltage range.

Technical Specifications

• Manufacturer: Allen-Bradley

• Product Line: FLEX I/O

• Part Number: 1794-PS3

• Product Type: FLEX I/O Power Supply Module

• Indicators: 1 green power status LED

• Nominal Input Voltage: 120V AC, 47–63 Hz, 1.4 A; 230V AC, 47–63 Hz, 0.8 A

• Input Voltage Range: 85–264V AC

• Maximum Input Current: 1.9 A

• Inrush Current: 30 A, 1 AC cycle @ 264V AC, 55 °C

• Nominal Output Voltage: +24V DC

• Output Voltage Regulation: 20.4–27.6V DC (±15%, includes noise and 5% AC ripple)

• Maximum Output Current: 3 A horizontal mount; 2.8 A other orientations

• Output Power: 72 W

• Power Dissipation: 12 W

• Thermal Dissipation: 41.0 BTU/hr

• Terminal Base Screw Torque: 0.8 Nm (7 lb-in.)

• Enclosure: Open-style, no enclosure

• Dimensions (HxWxD): 87 × 94 × 69 mm (3.43 × 3.70 × 2.72 in)

Key Features

• Stable 24V DC Output: Ensures reliable power to FLEX I/O modules

• Wide Input Range: Operates under 85–264V AC with high tolerance to inrush current

• Compact Open-Style Design: Allows flexible installation in control cabinets

• Visual Power Indicator: Green LED confirms module operation

• Low Thermal Dissipation: Efficient design reduces heat buildup

Applications

• Powering FLEX I/O digital and analog modules

• Industrial process control and automation cabinets

• Systems requiring compact, high-reliability 24V DC supply

FAQs

Q: What is the maximum output current of the 1794-PS3?
A: Up to 3 A for horizontal mounting, 2.8 A for other orientations.

Q: What is the input voltage range supported?
A: 85–264V AC, 47–63 Hz.

Q: Does this module include an enclosure?
A: No, it is open-style and designed for panel mounting.