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Revisions: Ser A

Description:   The Allen-Bradley 1794-PS3 Flex I/O DC Power Supply Module has a 230V AC, 47-63Hz, 1.1A max. Supply Voltage nom., a 85-265V AC Voltage Range, and a 1.9A max. Input Current. It also operates with a 20.4-27.6V DC Output Voltage Range and a 3A max. Output Current.

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Warranty: 1 year DO Supply Warranty Included
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Repairs: We offer repair service for the 1794-PS3.
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About 1794-PS3

The Allen-Bradley 1794-PS3 is a FLEX I/O DC power supply module. It can provide up to 10 adapter modules with 24 Volts DC power. Users can also use the 1794-PS3 module to provide power to an entire FLEX I/O system. This module can convert 120 or 230 Volts AC to 24 Volts DC at 3 Amps when it is mounted horizontally or at 2.8 Amps when mounted vertically. Note that either 3 Amps or 2.8 Amps is the module's maximum output current, depending on its mounting. The entire module measures 3.7 x 2.7 x 3.4 inches. It uses an open-style enclosure and can be mounted horizontally or vertically using a DIN rail or panel mount. It requires an isolation between the DC output terminals and AC input terminals.

The nominal power supply input voltage of this module is 120 to 230 Volts AC, 47 to 63 Hertz, and 1.4 Amps (for 120 Volts AC) or 0.8 Amps (for 230 Volts AC), while its nominal output voltage is 24 Volts DC. It also has a power supply input power of 86 W, a maximum apparent input power of 205 VA, and a maximum transformer load of 250 VA. The maximum input current of this module is 1.9 Amps, minimum load is 50 mA, output power is 72 W, and output ripple is a maximum of +/-5% 1200mV peak-to-peak. The 1794-PS3 module also has a leakage current of a maximum of 0.5 mA RMS at the rated input and output and an overcurrent protection of up to 3.2 Amps. Its power dissipation is 12 W while its thermal dissipation is 41 BTU/hour.

Technical specifications:

Manufacturer:Rockwell Automation
Part Number/Catalog No.:1794-PS3
Product Type:Flex I/O DC Power Supply Module
Supply Voltage nom.:230V AC, 47-63Hz, 1.1A max.
Voltage Range:85-265V AC
Input Current:1.9A max.
Output Voltage nom.:24V DC
Output Voltage Range:20.4-27.6V DC
Output Current:3A max.
Minimum Load:50mA
Overvoltage Protection:35V DC
Isolation Voltage:2500V DC
Thermal Dissipation:41.0 BTU/hr.


Question: What is the enclosure rating of 1794-PS3?

Answer: The enclosure rating of a 1794-PS3 FLEX I/O Power Supply Module is none or open-style.


Question: What is the wiring category of a 1794-PS3 FLEX I/O Power Supply Module?

Answer: The wiring category of 1794-PS3 is 2. 


Question: What is the price of 1794-PS3 FLEX I/O Power Supply Modules?

Answer: Submit a quote request, send us an email, or call 800-730-0292 for our best price.

Type Lead Time Price Action
Repair Service 2-4 weeks $164.50Add to Cart

Our highly skilled technicians can repair your 1794-PS3. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Please refer to the manual for more information about the 1794-PS3 such as the wiring diagrams, data sheets, firmware information and migration or obsolescence details.

Revision Part # Also Known as Availability
1794-PS3 Ser A
1794-PS3/A, Series A, Rev A Request Quote

Common misspellings: 1794PS3