Allen-Bradley | 1756-OW16I | ControlLogix (1756 Series)

Product Description: Allen-Bradley 1756-OW16I

The Allen-Bradley 1756-OW16I is a 16-point isolated relay output module for the ControlLogix platform. Each output channel features individually isolated, normally open mechanical relay contacts capable of switching both AC and DC loads. This module provides flexible and reliable switching for applications involving mixed-voltage systems, motor starters, solenoids, and pilot devices, making it ideal for general-purpose industrial automation.

Key Features

• 16 isolated relay output channels
• Individually isolated Form A (NO) contacts
• Supports both AC and DC load switching
• Mechanical relays provide physical isolation and high switching capacity
• Channel-level status indicators
• Suitable for use in mixed-voltage environments
• Compatible with any ControlLogix chassis and controller

Technical Specifications

• Output Type: Relay, Form A (Normally Open)
• Number of Outputs: 16
• Output Voltage Range:
• 5–265V AC
• 5–125V DC
• Maximum Output Current:
• 2.0 A per channel (resistive)
• 8.0 A max per module
• Relay Type: Mechanical (non-latching)
• Isolation: Channel- to-channel and channel-to-backplane
• Output Delay (Typical):
• ON: 10 ms
• OFF: 10 ms
• Backplane Current Draw:
• 250 mA @ 5.1V DC
• 120 mA @ 24V DC
• Operating Temperature: 0°C to 60°C
• Mounting: ControlLogix chassis (any I/O slot)
• Certifications: UL Listed, CE, CSA, RoHS, Class I Div 2

Application Areas

• Control of solenoids, relays, and contactors
• Mixed AC/DC switching environments
• Building automation and lighting control
• Packaging and assembly systems
• OEM equipment requiring relay isolation

Advantages

• Individually isolated channels allow control of multiple voltage domains
• Mechanical relays offer dependable isolation and load flexibility
• High voltage and current ratings for diverse industrial loads
• Field-replaceable and hot-swappable for minimal downtime
• Full integration with ControlLogix systems and Studio 5000