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1794-PS3 Allen-Bradley
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1794-PS3 Allen-Bradley

$450.00 - $495.00
$450.00
$450.00 - $495.00
$450.00
Surplus - Tested (With Warranty)
Need a Specific Revision?
$450.00
3 in stock
New / Open-Box Surplus
Need a Specific Revision?
$495.00
2 in stock
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Product Details

Description · Specifications · Product Overview

Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.

Product Overview

The 1794-PS3 is a Flex I/O power supply module from Allen-Bradley designed to convert 120/230 VAC to 24 V DC at up to 3 A. It delivers backplane power to Flex I/O adapters and modules within distributed I/O systems. It supports both horizontal and vertical/DIN-rail mounting, and includes features such as hold-up during brief input interruptions. The 1794-PS3 is used in industrial control cabinets to power modular I/O networks in manufacturing, process control and distributed automation installations.

Best Suited For

  • Flex I/O distributed control architectures
  • Applications requiring 24 V DC backplane power for up to ~10 adapters
  • Installations with mixed AC supply (120/230 VAC)
  • Retrofits or expansions of existing Flex I/O systems
Input voltage range
85-265 V AC
Nominal output voltage
24 V DC
Maximum output current
3 A (horizontal), 2.8 A (other mounts)
Output power
72 W
Operating temperature
0 °C to +55 °C

Technical Specifications

I/O & Electrical

Input voltage range
85-265 V AC
Nominal input current
1.7 A at 120 VAC, 1.1 A at 230 VAC
Maximum input current
1.9 A
Inrush current
40 A (typical, one AC cycle at 265 VAC, 55 °C)
Nominal output voltage
24 V DC
Output voltage range
20.4-27.6 V DC (includes noise and 5 % ripple)
Maximum output current
3 A (horizontal mount), 2.8 A (other mounts)
Output power
72 W
Overcurrent protection
3.2 A
Output surge capability
Drives up to 10 adapters
Minimum load
50 mA
Overvoltage protection
35 V DC internal limit; cycle power to reset
Leakage current
0.5 mA rms max at rated input/output
Isolation voltage
2500 V DC

Physical & Environmental

Operating temperature
0 °C to +55 °C (+32 °F to +131 °F)
Dimensions (HxWxD)
87 × 94 × 69 mm (3.4 × 3.7 × 2.7 in.)
Enclosure type
Open-style
Mounting
Horizontal or vertical, DIN-rail or panel

Certifications

UL Listed HazardousRegistro Italiano NavaleAmerican Bureau of ShippingUKCAMOROCCO DOC

Certified UL Listed (including Hazardous Locations Class I Div 2), Registro Italiano Navale, American Bureau of Shipping, UKCA and MOROCCO DOC as of May 25 2026.

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Rockwell Automation documentation

Access official manuals, datasheets, and lifecycle information for this part directly from Rockwell Automation.

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Must Read: Disclaimer

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