1756-OB161

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Overview of Allen-Bradley 1756-OB16I Discrete DC Output Module

The Allen-Bradley 1756-OB16I is a ControlLogix discrete output module featuring sixteen individually isolated DC output points. Operating within a voltage range of 10-30 V DC, it supports both sinking and sourcing configurations suitable for diverse industrial applications. The module is designed for direct installation into ControlLogix chassis, and it requires compatible removable terminal blocks (RTB) or interface modules (IFM) for field wiring connections.

Key Features of 1756-OB16I

  • Outputs: 16 individually isolated DC output points.
  • Voltage Range: 10 to 30 V DC.
  • Current per Point: 2 A at 30°C, 1 A at 60°C (linear derating).
  • Current per Module: 8 A at 30°C, 4 A at 60°C (linear derating).
  • Output Delay Time: Max 1 ms from OFF to ON, max 2 ms from ON to OFF.
  • Surge Current: 4 A for 10 ms repeatable every 2 seconds.
  • Isolation Voltage: 250 V continuous between outputs and backplane, 125 V continuous between outputs.
  • Power Dissipation: Max 3.6 W at 60°C (operating temperature).
  • Backplane Current: 350 mA at 5 V DC, 2.5 mA at 24 V DC.
  • LED Indicators: 16 LEDs for output status, plus module status and fault indicators.
  • Compatible Removable Terminal Blocks: 1756-TBCH, 1756-TBS6H (36 pins RTBs).
  • Operating Temperature Range: 0 to 60°C (32 to 140°F).

Technical Specifications

Number of Outputs: 16 DC outputs
Operating Voltage: 10-30 V DC
Current Rating: 2 A per point (30°C), 1 A per point (60°C)
Total Module Current: 8 A (30°C), 4 A (60°C)
Surge Current: 4 A for 10 ms every 2 seconds
Output Delay Time: OFF to ON: 1 ms max; ON to OFF: 2 ms max
Isolation Voltage: 250 V output-to-backplane; 125 V output-to-output
Power Dissipation: 3.6 W max at 60°C
Backplane Current: 350 mA at 5 V DC; 2.5 mA at 24 V DC
Dimensions: Standard 1756 module size
Weight: Approx. 0.34 kg (0.75 lbs)
LED Status Indicators: Outputs, module, fault

Applications / Use Cases

The 1756-OB16I output module is used for control and switching of DC loads such as relays, solenoids, indicators, and other actuators in factory automation, process control, and discrete manufacturing. Its isolated outputs allow wiring flexibility and protection for different voltage sources.

1756-OB161

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Does it come with a warranty?

Yes, All products are offered wth 1-Year warranty.

What is the condition of the product?

All products sold are New & Unused.

How fast is shipping?

All products are delivered within 2-8 business days depending on our stock location.

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