Allen-Bradley FLEX I/O 1794-OB16 16-Point Digital DC Output Module

Product Description

Allen-Bradley FLEX I/O Digital Output Module – Model: 1794-OB16  The 1794-OB16 is a 16-point DC output module designed for the FLEX I/O system. It provides sourcing outputs with integrated status indicators, making it suitable for distributed control applications that require compact design, reliable performance, and diagnostic visibility.

Technical Specifications

• Brand: Allen-Bradley

• Product Line: FLEX I/O 1794

• Model: 1794-OB16

• Type: Digital DC Output Module

• Number of Outputs: 16 sourcing channels

• Terminal Base Compatibility: 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3K, 1794-TB3SK

• Nominal On-State Voltage: 24 VDC

• On-State Voltage Range: 10–31.2 VDC

• On-State Current (max): 500 mA per channel

• Output Current Rating: 8.0 A total

• On-State Voltage Drop (max): 0.5 VDC

• Off-State Leakage Current (max): 0.5 mA

• Indicators: 16 yellow status LEDs

• Keyswitch Position: 2

• Isolation Voltage: 50 V continuous

• Flexbus Current Draw: 80 mA @ 5 VDC

• Power Dissipation: 5.3 W @ 31.2 VDC maximum

• Thermal Dissipation: 18.1 BTU/hr @ 31.2 VDC maximum

• Enclosure: Open-type

• Mounting: DIN rail

• Wire Size: Determined by installed terminal base

• Operating Temperature: 0–55 °C (32–131 °F)

• Storage Temperature: –40–85 °C (–40–185 °F)

• Vibration Resistance: 5 g @ 10–500 Hz

• Shock Rating: 30 g operating

• Weight: 0.25 lbs (0.11 kg)

Application Scenarios

• Distributed I/O systems requiring compact DC output modules

• Machine control applications with sourcing outputs

• Packaging and assembly automation systems

• Energy and utility monitoring with DC output signals

FAQ

Q: How many output channels does the 1794-OB16 provide?  A: It offers 16 sourcing DC output channels.

Q: Does the module include diagnostic indicators?  A: Yes, it has 16 yellow status LEDs for channel monitoring.

Q: What is the maximum current per channel?  A: Each channel supports up to 500 mA.