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1794-PS3

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

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  • Manufacturer: Allen-Bradley

  • Product No.: 1794-PS3

  • Product Type: Power Supply

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 450g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Allen-Bradley 1794-PS3 Flex I/O Power Supply

Product Overview

The Allen-Bradley 1794-PS3 is a Flex I/O power supply module providing 24 VDC nominal output at 3 A (horizontal mounting) or 2.8 A (other mountings) with 72 W output power. It accepts 85-264 VAC input (47-63 Hz) and delivers sufficient surge to drive up to 10 adapters. The module features 2500 VDC isolation and 40 A typical inrush current. Weight is 0.45 kg.

Specifications

Parameter Value
Brand Allen-Bradley / Rockwell Automation
Model 1794-PS3
Product Family Flex I/O System
Product Type Flex I/O DC Power Supply Module
Input Voltage Range 85-264 VAC
Input Frequency Range 47-63 Hz
Nominal Input Voltage 120 VAC (1.7 A max) / 230 VAC (1.1 A max)
Maximum Input Current 1.9 A
Inrush Current 40 A Typical, 1 AC Cycle @ 265 VAC, 55 °C
Output Voltage 24 VDC Nominal
Output Voltage Range 20.4-27.6 VDC
Output Current (Horizontal) 3 A
Output Current (Other) 2.8 A
Output Power 72 W
Output Surge Sufficient to Drive 10 Adapters
Output Ripple 1200 mV Peak-to-Peak (±5%)
Overcurrent Protection 3.2 A
Overvoltage Protection 35 VDC
Isolation Voltage 2500 VDC
Minimum Load 50 mA
Leakage Current 0.5 mA RMS Max
Power Dissipation 12 W Max
Thermal Dissipation 41.0 BTU/hr
Hold-Up Time 1/2 Cycle @ 47 Hz, 85 VAC, Max Load
Input Power 86 W
Max Apparent Input Power 205 VA
Max Transformer Load 250 VA
Dimensions (H x W x D) 3.7 x 2.7 x 3.4 in
Enclosure Type Open Style
Mounting DIN Rail or Panel Mount (Horizontal/Vertical)
Operating Temperature 0 to +55 °C
Operating Shock 30g
Operating Vibration 5g @ 10-500 Hz
Weight 0.45 kg
UPC 10612598206626

Key Features

  • Wide input voltage range 85-264 VAC, 47-63 Hz
  • 24 VDC nominal output at 3 A (horizontal) or 2.8 A (other mountings)
  • 72 W output power with 1200 mV peak-to-peak ripple
  • Output surge sufficient to drive up to 10 adapters
  • 2500 VDC isolation between AC input and DC output
  • 40 A typical inrush current handling
  • 3.2 A overcurrent protection and 35 VDC overvoltage protection
  • Hold-up time of 1/2 cycle at 47 Hz, 85 VAC with max load
  • DIN rail or panel mount in horizontal or vertical orientation
  • 30g operating shock and 5g vibration resistance

Installation Notes

Mount the power supply using DIN rail or panel mount in horizontal or vertical orientation. Horizontal mounting allows 3 A output current, while other orientations support 2.8 A. Connect 85-264 VAC input at 47-63 Hz. The output provides 24 VDC nominal to power Flex I/O modules and adapters. Maintain minimum load of 50 mA. The unit supports up to 10 Flex I/O adapters through its output surge capability. Maintain operating temperature between 0 and +55 °C. Ensure proper isolation between DC output terminals and AC input terminals.

FAQs

Q1: What is the output power of the 1794-PS3?

A1: 72 W with 3 A output current at horizontal mounting or 2.8 A at other mountings.

Q2: How many adapters can this power supply drive?

A2: Output surge is sufficient to drive up to 10 Flex I/O adapters.

Q3: What is the inrush current rating?

A3: 40 A typical for 1 AC cycle at 265 VAC and 55 °C.

Product Resources

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🏷️ Tags: Power Supply
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