Allen-Bradley | 1794-OB16 | FLEX I/O (1794 Series)

Product Description: Allen-Bradley 1794-OB16

The Allen-Bradley 1794-OB16 is a high-density digital output module designed for use within the FLEX I/O distributed I/O platform. It provides 16 sourcing (PNP) 24V DC output channels used to control field devices such as lamps, solenoids, and contactors. With its compact modular design and integration with various FLEX I/O adapters, the 1794-OB16 is ideal for cost-effective and scalable discrete control systems.

Key Features

• 16-channel digital sourcing (PNP) outputs
• 24V DC nominal operating voltage
• Compatible with FLEX I/O communication adapters and terminal bases
• Individual point LED indicators for output status
• Output groups: 2 groups of 8 channels with individual commons
• Ideal for interfacing with field devices requiring positive switching

Technical Specifications

• Output Type: Sourcing (PNP), 24V DC
• Number of Outputs: 16
• Voltage Range: 10–31.2V DC
• Nominal Voltage: 24V DC
• Output Current:
  • 0.5 A per channel
• Output Delay:
  • On: ≤1 ms
• Isolation Voltage: 50V (field-to-backplane)
• Power Dissipation: Approx. 4.5 W
• Mounting: DIN rail (via FLEX I/O terminal base such as 1794-TB3 or 1794-TB3S)
• Operating Temperature: 0°C to 55°C
• Certifications: UL Listed, CE, CSA, RoHS, Class I Div 2

Application Areas

• General-purpose digital output control
• Packaging and material handling systems
• Industrial automation panels with PNP field devices
• Distributed I/O for factory and process automation
• OEM equipment requiring scalable output modules

Advantages

• Compact high-density output in FLEX I/O format
• Reliable and fast switching for discrete outputs
• Simple integration with Rockwell Automation controllers
• Clear diagnostics via per- channel status LEDs
• Scalable architecture reduces system wiring and installation time