Description

Brief Product Description

The Allen-Bradley 1756-OX8I is a high-reliability ControlLogix relay output module featuring eight individually isolated contact points. It provides versatile switching for both AC and DC loads, making it ideal for controlling motor starters, solenoids, and indicators in complex PLC architectures.

Product Description

Versatile Load Management and Switching

The Allen-Bradley 1756-OX8I functions as a specialized relay output module within the ControlLogix ecosystem. It provides eight Normally Open (N.O.) and eight Normally Closed (N.C.) contacts, allowing for sophisticated control of diverse field devices. Because each channel is individually isolated, the module effectively prevents cross-talk and electrical interference between different voltage categories. This design enables the module to manage an expansive voltage range, spanning from 10 to 240V AC and 5 to 125V DC. Consequently, engineers can utilize a single module to trigger high-power contactors, variable frequency drives, and low-voltage pilot lamps simultaneously.

Robust Construction and High Endurance

Rockwell Automation engineered the 1756-OX8I to withstand the mechanical and electrical stresses of continuous industrial operation. The module utilizes high-quality relay components with an initial contact resistance of just 100 mΩ. To ensure long-term uptime, the contacts offer a life expectancy of 300,000 cycles for resistive loads and 100,000 cycles for inductive loads. Furthermore, the 1.2 ms mean bounce time ensures precise signal timing, which is critical for high-speed automated processes. This mechanical durability allows the module to maintain consistent performance in environments prone to vibration and temperature fluctuations.

Simplified Installation and Maintenance

The 1756-OX8I utilizes a modular interface that integrates with Removable Terminal Blocks (RTB), such as the 1756-TBCH or 1756-TBS6H. This architecture allows maintenance personnel to replace modules without disconnecting field wiring, which significantly reduces recovery time during hardware swaps. While the module provides individual isolation by default, users can easily configure it for common-side switching by utilizing a 1756-JMPR jumper. These flexible wiring options, combined with the module’s hot-swapping capability, make the 1756-OX8I a highly efficient solution for dynamic manufacturing environments.

Technical Specifications