Allen-Bradley 1756-OH8I

Overview

The Allen-Bradley 1756-OH8I is a critical component for demanding industrial automation environments, serving as a high-voltage isolated DC output module within the ControlLogix system. Engineered for precision and reliability, this module delivers 8 independently isolated outputs, ensuring superior protection and performance. Each channel supports a robust 90–146V DC voltage range and up to 2A of current, making it ideal for managing heavy-duty loads. Its 36-pin design facilitates secure and stable connections, while individual channel isolation safeguards connected equipment from electrical interference and faults. The 1756-OH8I is the perfect solution for applications requiring dependable, high-voltage switching with an emphasis on electrical isolation between channels, providing peace of mind in even the most challenging operational settings.

Key Features

• 8 Independently Isolated DC Outputs: Maximizes safety and operational flexibility by preventing electrical interference between channels.
• Wide Voltage Range (90–146V DC): Accommodates various high-voltage DC applications with robust power delivery.
• High Current Capacity (2A per point): Capable of reliably switching heavy-duty industrial loads.
• 36-Pin Connector: Ensures secure and stable electrical connections for enhanced system integrity.
• Integral Fault Protection: Features open load detection and overcurrent protection to safeguard your system and investments.
• Seamless ControlLogix Integration: Designed for effortless compatibility and optimal performance within your existing ControlLogix architecture.
• Robust Industrial Design: Built to withstand harsh operating conditions, providing long-term reliability and performance.

Technical Specifications

The Allen-Bradley 1756-OH8I is meticulously engineered to meet stringent industrial standards. It features 8 output channels, each capable of handling 90–146V DC with a maximum output current of 2A. The module utilizes a durable 36-pin connector for all electrical interfaces. Backplane current consumption is approximately 300 mA at 5.1V and 250 mA at 24V, ensuring efficient power utilization within your ControlLogix chassis. Crucially, it provides 250V of isolation between channels and to the backplane, offering superior electrical protection. Designed for resilience, the 1756-OH8I operates effectively in temperatures ranging from 0°C to +60°C and is easily mounted directly into a ControlLogix chassis, ensuring simple and secure installation within your industrial setup.

Model: 1756-OH8I

• Output Channels: 8
• Output Voltage Range: 90–146V DC
• Max Output Current: 2A per channel
• Connector: 36-pin
• Backplane Current (5.1V): ~300 mA
• Backplane Current (24V): ~250 mA
• Isolation: 250V (channel-to-channel and channel-to-backplane)
• Operating Temperature: 0°C to +60°C
• Mounting: ControlLogix chassis

Applications

• High-Voltage Industrial Machinery Control: Safely and reliably switches high-voltage devices in complex machinery.
• Material Handling Systems: Manages electrically isolated loads in conveyors, robotics, and automated storage and retrieval systems.
• Power Distribution Systems: Provides independent control for various segments of power distribution, enhancing system resilience.
• Process Automation: Ensures reliable DC signal management in chemical, oil & gas, and manufacturing processes.
• Energy Management: Ideal for applications requiring robust and isolated control of high-voltage DC circuits in energy infrastructure.
• Water/Wastewater Treatment: Provides isolated control for pumps, valves, and other critical components in demanding environmental conditions.

Why Choose This Model?

• Unmatched Electrical Isolation: Individually isolated outputs provide the highest level of protection, preventing cross-channel interference and system damage.
• Superior High-Voltage Capability: Designed to handle challenging DC loads up to 2A per point and a voltage range of 90–146V DC, ensuring robust performance in critical applications.
• Engineered for ControlLogix Excellence: Guarantees seamless integration and optimal compatibility with your existing ControlLogix architecture, maximizing system efficiency.
• Enhanced System Reliability: Features advanced fault protection, including open load detection and overcurrent protection, safeguarding your operations and extending equipment lifespan.
• Global Availability & Support: Available for worldwide shipping, backed by the trusted Allen-Bradley brand for quality and reliable performance.
• Longevity and Durability: Built with industrial-grade components and a robust design to withstand harsh environments, offering a long service life and minimal downtime.

Order Now

Elevate your industrial control system's performance and reliability with the Allen-Bradley 1756-OH8I Isolated DC Output Module. This essential component is available for global shipping, ensuring that your operations worldwide can benefit from its advanced capabilities. Don't compromise on safety or efficiency; integrate the 1756-OH8I into your ControlLogix system today for unparalleled control over high-voltage DC applications. For further exploration of compatible modules and expanding your system's capabilities, explore our complete range of ControlLogix Controllers and visit our comprehensive Allen-Bradley Industrial Automation Products master category to discover controllers, drives, motors, HMIs, and accessories.