Allen-Bradley 1794-OB8 | Flex I/O 8-Channel DC Output Module

Allen-Bradley 1794-OB8 Flex I/O DC Output Module

The Allen-Bradley 1794-OB8 provides compact DC output control for industrial automation systems. This reliable module offers eight sourcing outputs in a space-efficient design. It delivers consistent performance in various industrial control applications.

Key Specifications

• Model: 1794-OB8
• 8 sourcing output channels (non-isolated)
• 24V DC nominal voltage operation
• 4.0A total current (500mA maximum per channel)
• 0.5V maximum on-state voltage drop
• 0.5mA maximum off-state leakage current
• 0.5ms off-to-on signal delay
• 1ms on-to-off signal delay

Electrical Characteristics

• 60mA FlexBus current draw at 5V DC
• 3.3W power dissipation at 31.2V DC
• 11.2 BTU/hr thermal dissipation
• Fast response times for precise control
• Efficient power management

Certifications & Protection

• Class I Division 2 certification (United States)
• Zone 2 certification (European Union)
• Pollution Degree 2 classification
• Overvoltage Category II rating
• External fusing required for field wiring
• XT version available for extreme conditions

Mechanical & Environmental

• Compatible with TB3, TB3S, TBKD terminal bases
• Keyswitch position 2 configuration
• Snap-on DIN rail installation
• Compact dimensions: 94 × 94 × 69 mm
• Weight:0.2kg
• 0°C to 55°C operating temperature
• 5% to 95% humidity (non-condensing)

Package Contents

• 1794-OB8 DC output module
• Installation documentation
• Technical specification sheet
• Safety compliance certificates

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