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Includes a PDF Electric and Supply warranty.

(Never Used)


1 In Stock

3 Yr PDF Supply warranty

What is Surplus?



3 In Stock

2 Yr PDF Supply Warranty

What is Refurbished?

Repair Service


5-10 Days

2 Yr PDF Supply warranty


Other Available Revisions for the 1756-OA16 1756-OA16/A

Common misspellings:
  • l756-OA16
  • 1756-0A16
  • 1756-OAl6
  • 1756OA16

Technical Specifications for 1756-OA16

ManufacturerAllen-Bradley / Rockwell Automation
Part Number1756-OA16
Product TypeOutput Module
Number of Outputs16
Module TypeDigital
Voltage TypeAC
Nominal Voltage120/240 Volts AC
Operating Voltage75 to 264 Volts AC

The 1756-OA16 is a digital output module manufactured by Allen-Bradley under the ControlLogix Series. The digital output module comes with a voltage of 120 to 140 Volts AC with an operating voltage range is 74 to 265 Volts AC. Being a 16-point output module, the 1756-OA16’s maximum power dissipation is 6.5 Watts at 60 degrees Celsius. The 1756-OA16 also has a backplane current of 400 mA at 5 Volts while the backplane current at 24 Volts is 2 mA. The 1756-OA16 supports two removable terminal blocks. These are the 1756-TBNH and 1756-TBSH. It comes with an isolation voltage of 50 Volts continuous. The maximum output current rating point is 0.5 Amps at 60 degrees Celsius while the maximum output current rating module is 4 Amps at 60 degrees Celsius. The 1756-OA16 can be located on any slot on the chassis.

The 1756-OA16 features various fault states for each point. These include Hold the Last State, On-State, Off-State, and individual status indications in Program Mode for each point. The 1756-OA16 also comes with mechanically fused groups of outputs. The digital output module multicasts fault and status data to the owner controller or the listening controller. Just like the input modules, this output module maintains a module fault word which is its highest level of fault reporting. The fault words used on the 1756-OA16 include module-fault with a tag name fault and it provides the fault summary reporting. The other fault word on the 1756-OA16 is a fuse blown indicator with the tag name FuseBlown and this indicates that a point or group fuse has been blown on the 1756-OA16. Lastly, there is the Field Power Loss indicator with the tag name FieldPwrLoss which indicates a loss of field power to a point on the module. All the fault words are 32 bits.

The 1756-OA16 output module from Allen-Bradley and Rockwell Automation is a digital output module with 16 output channels from the ControlLogix series. This output module is an AC-powered digital output module that operates with a voltage range of 75 Volts AC to 264 Volts AC. The nominal AC voltage ratings supported by the 1756-OA16 digital output module are 120 Volts AC and 240 Volts AC. This module does not have an enclosure, which means that it should never be used outdoors. Additionally, this module should not be exposed to water or other liquids or to dust and debris in indoor environments, and it is recommended to install it inside an enclosure for protection. The 1756-OA16 output module needs to be installed on a compatible terminal block which will host all of its wiring. The compatible terminal blocks include the Allen-Bradley 1756-TBCH and 1756-TBSH terminal blocks.


The Allen-Bradley/Rockwell Automation ControlLogix 1756-OA16 digital output module can be configured by software, and the configuration software that it supports is the Studio 5000 Logix Designer software and the RSLogix 5000 Software that is version 8.02 or later. The maximum ambient operating temperature for this digital output module is 60 degrees Celsius or 140 degrees Fahrenheit. At the maximum ambient temperature of 60 degrees Celsius, the 1756-OA16 digital output module has a maximum output current rating per output point of 0.5 Amps, 4 Amps of maximum current per module, and a maximum power dissipation rating of 6.5 Watts. This output module can tolerate 5 to 95% ambient relative humidity without condensation in operation and in storage.

The Allen-Bradley ControlLogix 1756-OA16 digital output module has 16 outputs and it runs on AC power. Its operating voltage range is from 75 to 264 Volts AC.

F.A.Q for 1756-OA16

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