1794-OB8 | Allen-Bradley Flex 8-Point Digital Output Module
1794-OB8 | Allen-Bradley Flex 8-Point Digital Output Module
1794-OB8 | Allen-Bradley Flex 8-Point Digital Output Module
1794-OB8 | Allen-Bradley Flex 8-Point Digital Output Module
1794-OB8 | Allen-Bradley Flex 8-Point Digital Output Module
1794-OB8 | Allen-Bradley Flex 8-Point Digital Output Module
1794-OB8 | Allen-Bradley Flex 8-Point Digital Output Module
1794-OB8 | Allen-Bradley Flex 8-Point Digital Output Module
1794-OB8 | Allen-Bradley Flex 8-Point Digital Output Module
    1794-OB8 | Allen-Bradley Flex 8-Point Digital Output Module
    1794-OB8 | Allen-Bradley Flex 8-Point Digital Output Module
    1794-OB8 | Allen-Bradley Flex 8-Point Digital Output Module
1794-OB8 | Allen-Bradley Flex 8-Point Digital Output Module
1794-OB8 | Allen-Bradley Flex 8-Point Digital Output Module
1794-OB8 | Allen-Bradley Flex 8-Point Digital Output Module

1794-OB8 | Allen-Bradley Flex 8-Point Digital Output Module

Part #: 1794-OB8 Manufactured by: Allen-Bradley
$193.80
$193.80
4 in Stock
Condition: New-Surplus Original Box
Shipping calculated at checkout.
Product Overview
The Allen-Bradley 1794-OB8 is a Flex 8-Point Digital Output Module. It provides a versatile and reliable solution for cont...  Read more
We accept:
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Do you need help?

Call our Sales Manager
phone
+1 (828) 222-3490
Mon./Sat.: 7:00AM - 8:00PM
Write to us now
email
sales@iqelectro.com
Mon./Sat.: 7:00AM - 12:00PM
warranty
IQElectro 2-Year Warranty
Warranty for Product #: 1794-OB8
IQElectro offers a free 2-year warranty on all products. You can trust that every purchase is a reliable investment in the future of your company. Warranty Terms
2-3 Day Free Shipping
Packed Ready to Ship
24/7 Expert Support
Return within 30-Days
IQElectro LLC BBB Business Review
IQElectro is Not an authorized distributor for Allen-Bradley
Original Manufacturer's Warranty Not Covered, This Product is SURPLUS.

Product Description P/N: 1794-OB8

Description / Specifications

Description
The Allen-Bradley 1794-OB8 is a FLEX I/O discrete DC output module with 8 sourcing output points. It delivers 24V DC nominal output signals for driving field devices and supports DIN rail mounting in an open-style, IP20-rated design. This module is widely used in distributed control, machine automation, and process applications where modular and flexible I/O is required.

 

 

Technical Specifications 

Manufacturer Rockwell Automation
Brand Allen-Bradley
Part Number/Catalog No. 1794-OB8
Product Type Flex I/O Digital DC Output Module
Outputs 8 Sourcing Current
On-state Voltage nom. 24V DC
Output Current Rating 4A
On-state Current max. 500mA per Channel
On-state Voltage Drop max. 0.5V DC
Off-state Leakage Current max. 0.5mA
Isolation Voltage 50V Continuous
Flexbus Current 60mA @ 5V DC
Power Dissipation 3.3W @ 31.2V DC max.
Thermal Dissipation 11.2 BTU/hr. @ 31.2V DC max.
Series A

  

 

Information About 1794-OB8

The 1794-OB8 is part of the Allen-Bradley FLEX I/O family, designed for modular and scalable distributed I/O systems. It provides 8 DC sourcing outputs with an operating range of 10–31.2V DC and supports an external power supply with up to 5% AC ripple. The module ensures fast switching performance with a maximum output delay time of 0.5 ms (off-to-on) and 1 ms (on-to-off). Compatible terminal bases include 1794-TB3, 1794-TB3S, and 1794-TBKD, which allow quick installation and wiring. The design supports RIUP (Removal and Insertion Under Power), minimizing downtime by enabling module replacement without shutting down the system. The 1794-OB8 integrates into control architectures via ControlNet, DeviceNet, EtherNet/IP, or Universal Remote I/O adapters, ensuring flexible communication. It also includes 16 yellow LED indicators for clear output channel status monitoring. With operating conditions of 0–55 °C and 5–95% non-condensing humidity, plus extended XT versions rated -20 to 70 °C, the module is suitable for both standard and harsh industrial environments.

Key Features:

  • Design: Compact FLEX I/O module with 8 DC sourcing output channels.
  • Voltage Range: Operates at 10–31.2V DC with nominal 24V output.
  • Performance: Fast switching with 0.5 ms (ON) and 1 ms (OFF) delay times.
  • Connectivity: Compatible with terminal bases 1794-TB3, 1794-TB3S, and 1794-TBKD.
  • Communication: Supports integration via ControlNet, DeviceNet, EtherNet/IP, and Universal Remote I/O.
  • Ease of Maintenance: RIUP capability allows hot-swapping without shutting down the system.
  • Diagnostics: Equipped with 16 yellow LED indicators for per-channel output status.
  • Durability: Standard operating range 0–55 °C, with XT versions rated for -20–70 °C.

The 1794-OB8 delivers flexible, reliable, and high-performance digital output control for industrial automation systems.

 

Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

Frequently Asked Questions about 1794-OB8
Question: What is the 1794-OB8 used for?
Date Update:23/05/2025
Answer:

The 1794-OB8 is an 8-point digital DC output module from the Flex I/O series. It is used to control 24V DC output devices such as solenoids, relays, pilot lights, and other actuators in distributed I/O applications.

Question: Is the 1794-OB8 a sourcing or sinking module?
Date Update:23/05/2025
Answer:

The 1794-OB8 is a sourcing (positive logic) output module. It provides a positive voltage to the load when the output is ON. Devices connected to it must be of the sinking type (they sink current to ground).

Question: What is the power requirement for this module?
Date Update:23/05/2025
Answer:

The module does not consume power from the field side directly but receives power through the Flex I/O adapter and terminal base. Each output channel can handle up to 0.5 A, and the module supports up to 4 A total across all channels.

Question: Is the 1794-OB8 hot-swappable?
Date Update:23/05/2025
Answer:

Yes. When used with compatible adapters and software, Flex I/O modules like the 1794-OB8 can be hot-swapped, meaning they can be replaced without shutting down the entire system.

IQElectro is not an authorized distributor.
IQElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description
The Allen-Bradley 1794-OB8 is a FLEX I/O discrete DC output module with 8 sourcing output points. It delivers 24V DC nominal output signals for driving field devices and supports DIN rail mounting in an open-style, IP20-rated design. This module is widely used in distributed control, machine automation, and process applications where modular and flexible I/O is required.

 

 

Technical Specifications 

Manufacturer Rockwell Automation
Brand Allen-Bradley
Part Number/Catalog No. 1794-OB8
Product Type Flex I/O Digital DC Output Module
Outputs 8 Sourcing Current
On-state Voltage nom. 24V DC
Output Current Rating 4A
On-state Current max. 500mA per Channel
On-state Voltage Drop max. 0.5V DC
Off-state Leakage Current max. 0.5mA
Isolation Voltage 50V Continuous
Flexbus Current 60mA @ 5V DC
Power Dissipation 3.3W @ 31.2V DC max.
Thermal Dissipation 11.2 BTU/hr. @ 31.2V DC max.
Series A

  

 

Information About 1794-OB8

The 1794-OB8 is part of the Allen-Bradley FLEX I/O family, designed for modular and scalable distributed I/O systems. It provides 8 DC sourcing outputs with an operating range of 10–31.2V DC and supports an external power supply with up to 5% AC ripple. The module ensures fast switching performance with a maximum output delay time of 0.5 ms (off-to-on) and 1 ms (on-to-off). Compatible terminal bases include 1794-TB3, 1794-TB3S, and 1794-TBKD, which allow quick installation and wiring. The design supports RIUP (Removal and Insertion Under Power), minimizing downtime by enabling module replacement without shutting down the system. The 1794-OB8 integrates into control architectures via ControlNet, DeviceNet, EtherNet/IP, or Universal Remote I/O adapters, ensuring flexible communication. It also includes 16 yellow LED indicators for clear output channel status monitoring. With operating conditions of 0–55 °C and 5–95% non-condensing humidity, plus extended XT versions rated -20 to 70 °C, the module is suitable for both standard and harsh industrial environments.

Key Features:

  • Design: Compact FLEX I/O module with 8 DC sourcing output channels.
  • Voltage Range: Operates at 10–31.2V DC with nominal 24V output.
  • Performance: Fast switching with 0.5 ms (ON) and 1 ms (OFF) delay times.
  • Connectivity: Compatible with terminal bases 1794-TB3, 1794-TB3S, and 1794-TBKD.
  • Communication: Supports integration via ControlNet, DeviceNet, EtherNet/IP, and Universal Remote I/O.
  • Ease of Maintenance: RIUP capability allows hot-swapping without shutting down the system.
  • Diagnostics: Equipped with 16 yellow LED indicators for per-channel output status.
  • Durability: Standard operating range 0–55 °C, with XT versions rated for -20–70 °C.

The 1794-OB8 delivers flexible, reliable, and high-performance digital output control for industrial automation systems.

 

Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

Check Out These Related Products