Allen Bradley 1756-OB16I ControlLogix Isolated Digital Output Module

Overview

The 1756-OB16I is a ControlLogix isolated digital output module designed for reliable control of DC field devices in industrial automation systems. Featuring 16 isolated output channels, it helps minimize electrical interference between circuits while providing dependable switching performance for relays, solenoids, indicators, and other DC loads.

General Information

Part Number: 1756-OB16I

Manufacturer: Allen Bradley

Brand / Country of Origin: Rockwell Automation / USA

Series: ControlLogix

Type: Isolated Digital Output Module

Number of Outputs: 16 Isolated DC Output Channels

Mounting: Chassis-based installation in ControlLogix systems

Technology: Solid-state isolated digital output with integrated diagnostics

Power Specifications

Operating Voltage Range: 10–30 V DC

Nominal Output Voltage: 24 V DC

Backplane Current: 250 mA at 5.1 V DC

Total Backplane Power: 1.28 W

Maximum Continuous Current per Output: 0.5 A

Protection: Electronic overload protection and fault monitoring

Status Indicators: Individual output status LEDs and module diagnostics LED

Communication & Interface

System Interface: ControlLogix backplane

Communication Method: High-speed chassis communication

Diagnostics: Output status monitoring and fault reporting

Configuration: Software configurable through the ControlLogix platform

Operator Interface: Front-panel LED indicators

Wiring Connection: Removable terminal block compatible

Environmental

Operating Temperature: 0°C to +60°C

Storage Temperature: -40°C to +85°C

Relative Humidity: 5% to 95%, non-condensing

Vibration Resistance: Industrial-grade industrial environment rating

Protection Rating: Open-type module for installation within an enclosure

Dimensions & Weight

Dimensions (L × W × H): 144.57 × 22 × 105.42 mm

Weight: 0.181 kg

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