Allen Bradley 1791-0A16 Digital AC Output Module

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.

Technical specifications for 1791-0A16

ManufacturerRockwell Automation

Part Number/Catalog No.1791-OA16

BrandAllen-Bradley

Compatible ControllersPLC-2, PLC-3, PLC-5/20, and PLC-5

Module TypeDigital AC Output Module

No. of OutputsSixteen (16) outputs

Channel GroupingTwo (2) groups of Eight (8) channels

Nominal Output Voltage120 VAC

Operating Voltage Range20-132 VAC

Output Delay Time, OFF to ON1.0 ms delay At 60 Hz and 1.0 ms delay at 50 Hz.

Output Delay Time, ON to OFF8.3 ms at 60 Hz or 10.0 ms at 50 Hz.

OFF state leakage current3 mA

Maximum On-state Current50 mA per output

Surge Current10 A for 50 ms each, repeatable every 2 sec.

Mounting orientationVertical and Horizontal

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