Allen Bradley AB SLC500 Bulletin 1746 Output Module 1746-OW8 /A

Allen-Bradley 1746-OW8/A SLC 500 8-Point Relay Output Module

The Allen-Bradley 1746-OW8/A is an 8-point relay output module designed for the SLC 500 series programmable logic controllers (PLCs). This module provides reliable switching capabilities for both AC and DC loads, making it suitable for a wide range of industrial automation applications.

Key Features

• Output Channels: 8 normally open (N.O.) relay contacts.
• Voltage Range: Operates with 5–125V DC or 5–265V AC, accommodating various load requirements.
• Current Ratings: Supports up to 1.5 A per point at 120V AC and 1.2 A per point at 24V DC, with a maximum of 16 A per module.
• Signal Delay: Typical ON and OFF delay of 10 milliseconds, ensuring prompt response times.
• Isolation Voltage: Provides 1500V AC isolation between relay contacts and the backplane, enhancing system safety.
• Backplane Current Consumption: Draws 85 mA at 5V DC and 90 mA at 24V DC, ensuring efficient power usage.
• Environmental Tolerance: Operates within a temperature range of 0°C to 60°C (32°F to 140°F) and can be stored between -40°C to 85°C (-40°F to 185°F).
• Certifications: UL, CE, and CSA certified, meeting industry standards for safety and performance.

Applications

The 1746-OW8/A module is ideal for controlling various devices such as solenoids, indicators, and other actuators in manufacturing automation, packaging systems, water treatment facilities, and more. Its compatibility with both AC and DC loads offers flexibility in diverse industrial settings.

Installation and Compatibility

This module is designed for easy integration into SLC 500 chassis and processors, occupying a single slot. It is compatible with SLC 5/01, SLC 5/02, SLC 5/03, SLC 5/04, and SLC 5/05 controllers, as well as remote I/O configurations. Proper installation in a clean, dry environment is recommended to maintain optimal performance.

Maintenance and Safety

Regular inspection for dust accumulation and electrical wear is advised. Ensure the system is powered down before inserting or removing the module to prevent electrical hazards. The module’s robust design and certifications ensure reliable operation in industrial environments.

For detailed technical specifications and installation guidelines, refer to the official Allen-Bradley documentation.