1791-0A16 | Allen Bradley PLC 1791 Block I/O

1791-0A16

Rated 4.9 with 15 reviews

DO Supply is NOT an authorized distributor for this manufacturer and therefore the manufacturer’s warranty does not apply. Product comes with DO Supply's 1-year warranty

Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.


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1791-0A16

Revisions: Ser A Ser B 
Description: The Allen-Bradley 1791-OA16 is a Block I/O module. This is an AC output module which features Sixteen (16) AC output channels in Two (2) groups of Eight (8) outputs each channel, providing signal voltages of 20-132VAC with frequency of 47-63 Hz.
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Request a quote for 1791-0A16

Description: The Allen-Bradley 1791-OA16 is a Block I/O module. This is an AC output module which features Sixteen (16) AC output channels in Two (2) groups of Eight (8) outputs each channel, providing signal voltages of 20-132VAC with frequency of 47-63 Hz.

DO Supply is NOT an authorized distributor for this manufacturer and therefore the manufacturer’s warranty does not apply. Product comes with DO Supply's 1-year warranty

Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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credit cards
better business bureau
Revisions: Ser A Ser B 

Warranty: 1 year DO Supply Warranty Included
Shipping: Worldwide shipping via UPS, DHL, and TNT
Repairs: We offer repair service for the 1791-0A16.
Exchange: Exchange credit for your defective unit available.
Conditions: We sell preowned surplus and refurbished parts.

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Rated 4.9 with 15 reviews

    Technical Specifications for 1791-0A16

ManufacturerRockwell Automation
BrandAllen-Bradley
Mounting orientationVertical and Horizontal
Surge Current10 A for 50 ms each, repeatable every 2 sec.
Maximum On-state Current50 mA per output
OFF state leakage current3 mA
Output Delay Time, ON to OFF8.3 ms at 60 Hz or 10.0 ms at 50 Hz.
Output Delay Time, OFF to ON1.0 ms delay At 60 Hz and 1.0 ms delay at 50 Hz.
Operating Voltage Range20-132 VAC
Nominal Output Voltage120 VAC
Channel GroupingTwo (2) groups of Eight (8) channels
No. of OutputsSixteen (16) outputs
Module TypeDigital AC Output Module
Compatible ControllersPLC-2, PLC-3, PLC-5/20, and PLC-5
Part Number/Catalog No.1791-OA16
Voltage120V ac
Inputs per Block0
Input On-state Voltage RangeN/A
Input On-state CurrentN/A
Input Off-state VoltageN/A
Input Off-state CurrentN/A
Outputs per Block16
Output Voltage Range20-132V ac
External Power85-132V ac
Dimensions6.95 x 2.7 x 3.85 in.
Min. On-state Current50mA per output
Max. On-state Voltage Drop1.5V peak @ 300mA
Output Signal Delay8.3ms @ 60Hz on; 10ms @ 50Hz off
Product Lifecycle Status*Discontinued/Obsolete

*The Allen Bradley 1791-0A16 has been discontinued by the manufacturer, however we specialize in obsolete parts and can likely still supply surplus and/or refurbished replacement 1791-0A16 units instead of migration.

ManufacturerRockwell Automation
BrandAllen-Bradley
Mounting orientationVertical and Horizontal
Surge Current10 A for 50 ms each, repeatable every 2 sec.
Maximum On-state Current50 mA per output
OFF state leakage current3 mA
Output Delay Time, ON to OFF8.3 ms at 60 Hz or 10.0 ms at 50 Hz.
Output Delay Time, OFF to ON1.0 ms delay At 60 Hz and 1.0 ms delay at 50 Hz.
Operating Voltage Range20-132 VAC
Nominal Output Voltage120 VAC
Channel GroupingTwo (2) groups of Eight (8) channels
No. of OutputsSixteen (16) outputs
Module TypeDigital AC Output Module
Compatible ControllersPLC-2, PLC-3, PLC-5/20, and PLC-5
Part Number/Catalog No.1791-OA16
Voltage120V ac
Inputs per Block0
Input On-state Voltage RangeN/A
Input On-state CurrentN/A
Input Off-state VoltageN/A
Input Off-state CurrentN/A
Outputs per Block16
Output Voltage Range20-132V ac
External Power85-132V ac
Dimensions6.95 x 2.7 x 3.85 in.
Min. On-state Current50mA per output
Max. On-state Voltage Drop1.5V peak @ 300mA
Output Signal Delay8.3ms @ 60Hz on; 10ms @ 50Hz off
Product Lifecycle Status*Discontinued/Obsolete

*The Allen Bradley 1791-0A16 has been discontinued by the manufacturer, however we specialize in obsolete parts and can likely still supply surplus and/or refurbished replacement 1791-0A16 units instead of migration.

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About 1791-0A16

The Allen-Bradley 1791-OA16 is a Block I/O module that features Sixteen (16) 20-132VAC output channels with frequency of 47-63 Hz. This module is provided with Two (2) groups of Eight (8) output channels capable of energizing electrical loads such as pilot lamps, buzzer, siren, relays, contactors and other devices.

The 1791-OA16 is compatible for use with the legacy PLC-2, PLC-3, PLC-5/20, and PLC-5 Programmable Logix Controllers. This module acts as a distributed input and output module, contributing to overall cost effectivity by eliminating the need of long distance signal cable runs as this module allows installation near the electrical devices. Additionally, this module has a small form factor that requires minimum pane space.

The 1791-OA16 is externally powered. It requires a supply voltage of 85-132VAC with frequency of 47-63 Hz and continuous current supply of 150 mA. It has built-in isolation circuitries, with the power supply to RIO isolation rating of 500VAC, )/O group to group isolation rating of 1250VAC and I/O group to logic isolation of 1250 VAC. When terminating signal wires to this module, appropriate conductors are gauge 14 stranded wire with maximum insulation thickness of 3/64 inches.

The output voltage channels exhibit an ON to OFF transition delay of 8.3 ms at 60 Hz or 10.0 ms at 50 Hz. It also has a signal delay during OFF to ON transition, exhibiting 1.0 ms delay At 60 Hz and 1.0 ms delay at 50 Hz. This module supports horizontal and vertical mounting. When mounted vertically, this module has an output current rating of 300 mA at 60 Deg. Celsius and and 600 mA at 30 Deg. Celsius. When mounted horizontally, this module has an output current rating of 150 mA at 60 Deg. Celsius and 300 mA at 30 Deg. Celsius.

The 1791-OA16 has a removable terminal strip that allows convenient termination of signals and replacement of the signal module. For troubleshooting purposes, there is a status indicator serving as troubleshooting reference.

The required power for this product is 120 Volts AC. Before connecting the block I/O’s inputs to other devices, verify that the devices meet DC and AC inputs specifications. Also, check the required continuous current to power up the devices before connecting to the block I/O outputs. For vertical mounting, 1791-0A16 has a maximum output rating of 600 milliamps at 30 degrees Celsius and 300 milliamps at 60 degrees Celsius. For horizontal mounting, this block has a maximum output rating of 300 milliamps at 30 degrees Celsius and 150 milliamps at 60 degrees Celsius. Before installing the block, be sure that you have determined answers for all necessary considerations. These considerations include scanner/processor, the number of blocks, throughput requirements, total installation distance, and transmission rate.

FAQ for 1791-0A16

How many input channels does the 1791-OA16 have?


The 1791-OA16 has Sixteen (16) AC output channels.

What is the power supply requirement of the 1791-OA16?


The 1746-OA16 is externally powered by a supply voltage range of 85-132VAC.

Can I use this module to energize DC loads?


Yes, however, this must be done indirectly with the use of interposing circuitry.

Technical Description of 1791-0A16

120V ac BLOCK I/O Allen-Bradley AB with 16 Outputs per Block.

Repair Services for 1791-0A16

Type Lead Time Price Action
Repair Service 2-4 weeks Askenvelope Get Quote

Our highly skilled technicians can repair your 1791-0A16. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Revisions for 1791-0A16

Please refer to the manual for more information about the 1791-0A16 such as the wiring diagrams, data sheets and migration or obsolescence details.

Revision Part # Also Known as Availability
1791-0A16 Ser A
1791-0A16/A, Series A, Rev A Request Quote
1791-0A16 Ser B
1791-0A16/B, Series B, Rev B Request Quote
Common misspellings:
  • l791-0A16
  • 179l-0A16
  • 1791-oA16
  • 1791-0Al6
  • 17910A16

Reviews for 1791-0A16

Internal Review

"The 1791-OA16 is a block I/O module that is used to energize electrical loads and act as a distributed I/O module of legacy controllers such as the PLC2, PLC3 and PLC5 series. This module has Sixteen (16) AC output channels, significantly lower compared to the 1791-OA32 which has 32 output channels. However, this does not reflect the performance of this module as it comes with almost typical capabilities when compared to the 1791-OA32. In application where lesser I/Os are included, the 1791-OA32 may offer a practical and cost-effective solution. " -DO Supply Tech

Dimensions For 1791-0A16

Size
Input Type
Panel Cutout Height in mm
Panel Cutout Width in mm
Terminal Height in mm
Terminal Width in mm
Terminal Overall Depth in mm
Terminal Mounted Depth in mm

Dimensions For 1791-0A16

Resolutions For 1791-0A16

About

Technical Specifications for 1791-0A16

ManufacturerRockwell Automation
BrandAllen-Bradley
Mounting orientationVertical and Horizontal
Surge Current10 A for 50 ms each, repeatable every 2 sec.
Maximum On-state Current50 mA per output
OFF state leakage current3 mA
Output Delay Time, ON to OFF8.3 ms at 60 Hz or 10.0 ms at 50 Hz.
Output Delay Time, OFF to ON1.0 ms delay At 60 Hz and 1.0 ms delay at 50 Hz.
Operating Voltage Range20-132 VAC
Nominal Output Voltage120 VAC
Channel GroupingTwo (2) groups of Eight (8) channels
No. of OutputsSixteen (16) outputs
Module TypeDigital AC Output Module
Compatible ControllersPLC-2, PLC-3, PLC-5/20, and PLC-5
Part Number/Catalog No.1791-OA16
Voltage120V ac
Inputs per Block0
Input On-state Voltage RangeN/A
Input On-state CurrentN/A
Input Off-state VoltageN/A
Input Off-state CurrentN/A
Outputs per Block16
Output Voltage Range20-132V ac
External Power85-132V ac
Dimensions6.95 x 2.7 x 3.85 in.
Min. On-state Current50mA per output
Max. On-state Voltage Drop1.5V peak @ 300mA
Output Signal Delay8.3ms @ 60Hz on; 10ms @ 50Hz off
Product Lifecycle Status*Discontinued/Obsolete
ManufacturerRockwell Automation
BrandAllen-Bradley
Mounting orientationVertical and Horizontal
Surge Current10 A for 50 ms each, repeatable every 2 sec.
Maximum On-state Current50 mA per output
OFF state leakage current3 mA
Output Delay Time, ON to OFF8.3 ms at 60 Hz or 10.0 ms at 50 Hz.
Output Delay Time, OFF to ON1.0 ms delay At 60 Hz and 1.0 ms delay at 50 Hz.
Operating Voltage Range20-132 VAC
Nominal Output Voltage120 VAC
Channel GroupingTwo (2) groups of Eight (8) channels
No. of OutputsSixteen (16) outputs
Module TypeDigital AC Output Module
Compatible ControllersPLC-2, PLC-3, PLC-5/20, and PLC-5
Part Number/Catalog No.1791-OA16
Voltage120V ac
Inputs per Block0
Input On-state Voltage RangeN/A
Input On-state CurrentN/A
Input Off-state VoltageN/A
Input Off-state CurrentN/A
Outputs per Block16
Output Voltage Range20-132V ac
External Power85-132V ac
Dimensions6.95 x 2.7 x 3.85 in.
Min. On-state Current50mA per output
Max. On-state Voltage Drop1.5V peak @ 300mA
Output Signal Delay8.3ms @ 60Hz on; 10ms @ 50Hz off
Product Lifecycle Status*Discontinued/Obsolete

*The Allen Bradley 1791-0A16 has been discontinued by the manufacturer, however we specialize in obsolete parts and can likely still supply surplus and/or refurbished replacement 1791-0A16 units instead of migration.

About 1791-0A16

The Allen-Bradley 1791-OA16 is a Block I/O module that features Sixteen (16) 20-132VAC output channels with frequency of 47-63 Hz. This module is provided with Two (2) groups of Eight (8) output channels capable of energizing electrical loads such as pilot lamps, buzzer, siren, relays, contactors and other devices.

The 1791-OA16 is compatible for use with the legacy PLC-2, PLC-3, PLC-5/20, and PLC-5 Programmable Logix Controllers. This module acts as a distributed input and output module, contributing to overall cost effectivity by eliminating the need of long distance signal cable runs as this module allows installation near the electrical devices. Additionally, this module has a small form factor that requires minimum pane space.

The 1791-OA16 is externally powered. It requires a supply voltage of 85-132VAC with frequency of 47-63 Hz and continuous current supply of 150 mA. It has built-in isolation circuitries, with the power supply to RIO isolation rating of 500VAC, )/O group to group isolation rating of 1250VAC and I/O group to logic isolation of 1250 VAC. When terminating signal wires to this module, appropriate conductors are gauge 14 stranded wire with maximum insulation thickness of 3/64 inches.

The output voltage channels exhibit an ON to OFF transition delay of 8.3 ms at 60 Hz or 10.0 ms at 50 Hz. It also has a signal delay during OFF to ON transition, exhibiting 1.0 ms delay At 60 Hz and 1.0 ms delay at 50 Hz. This module supports horizontal and vertical mounting. When mounted vertically, this module has an output current rating of 300 mA at 60 Deg. Celsius and and 600 mA at 30 Deg. Celsius. When mounted horizontally, this module has an output current rating of 150 mA at 60 Deg. Celsius and 300 mA at 30 Deg. Celsius.

The 1791-OA16 has a removable terminal strip that allows convenient termination of signals and replacement of the signal module. For troubleshooting purposes, there is a status indicator serving as troubleshooting reference.

The required power for this product is 120 Volts AC. Before connecting the block I/O’s inputs to other devices, verify that the devices meet DC and AC inputs specifications. Also, check the required continuous current to power up the devices before connecting to the block I/O outputs. For vertical mounting, 1791-0A16 has a maximum output rating of 600 milliamps at 30 degrees Celsius and 300 milliamps at 60 degrees Celsius. For horizontal mounting, this block has a maximum output rating of 300 milliamps at 30 degrees Celsius and 150 milliamps at 60 degrees Celsius. Before installing the block, be sure that you have determined answers for all necessary considerations. These considerations include scanner/processor, the number of blocks, throughput requirements, total installation distance, and transmission rate.

FAQ for 1791-0A16

How many input channels does the 1791-OA16 have?


The 1791-OA16 has Sixteen (16) AC output channels.

What is the power supply requirement of the 1791-OA16?


The 1746-OA16 is externally powered by a supply voltage range of 85-132VAC.

Can I use this module to energize DC loads?


Yes, however, this must be done indirectly with the use of interposing circuitry.

Technical Description of 1791-0A16

120V ac BLOCK I/O Allen-Bradley AB with 16 Outputs per Block.
Repairs
Type Lead Time Price Action
Repair Service 2-4 weeks Askenvelope Get Quote

Our highly skilled technicians can repair your 1791-0A16. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Type Lead Time Price Action
Repair Service 2-4 weeks Askenvelope Get Quote

Our highly skilled technicians can repair your 1791-0A16. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Revisions

Please refer to the manual for more information about the 1791-0A16 such as the wiring diagrams, data sheets and migration or obsolescence details.

Revision Part # Also Known as Availability
1791-0A16 Ser A
1791-0A16/A, Series A, Rev A Request Quote
1791-0A16 Ser B
1791-0A16/B, Series B, Rev B Request Quote

Common misspellings:
  • l791-0A16
  • 179l-0A16
  • 1791-oA16
  • 1791-0Al6
  • 17910A16
PDF
Reviews

Reviews for 1791-0A16

Internal Review

"The 1791-OA16 is a block I/O module that is used to energize electrical loads and act as a distributed I/O module of legacy controllers such as the PLC2, PLC3 and PLC5 series. This module has Sixteen (16) AC output channels, significantly lower compared to the 1791-OA32 which has 32 output channels. However, this does not reflect the performance of this module as it comes with almost typical capabilities when compared to the 1791-OA32. In application where lesser I/Os are included, the 1791-OA32 may offer a practical and cost-effective solution. " -DO Supply Tech