Allen-Bradley | 1746-OW16 | SLC 500 (1746 Series)

Product Description: Allen-Bradley 1746-OW16

The Allen-Bradley 1746-OW16 is a 16-point digital output module for the SLC 500 PLC platform. It features Form A (normally open) mechanical relay outputs capable of switching both AC and DC loads. Designed for flexibility and reliability, the 1746-OW16 allows users to control a wide range of devices such as solenoids, motor starters, and lamps in diverse voltage environments.

Key Features

• 16 relay output channels (Form A, SPST – Normally Open)
• Supports switching of both AC and DC loads
• Electromechanical relays provide high isolation and robust performance
• Removable terminal block for simplified wiring
• LED indicators for each output channel status
• Compatible with all standard 1746 I/O chassis and SLC processors

Technical Specifications

• Output Type: Relay (mechanical, Form A – NO)
• Number of Outputs: 16
• Voltage Range: 5–125V DC, 5–265V AC
• Maximum Output Current: 2.0 A per channel (resistive load), 8.0 A per common
• Minimum Load: 10 mA @ 5V DC
• Isolation Voltage: 1500V AC (channel-to-backplane and between groups)
• Relay Contact Life: Resistive Load: 100,000 cycles @ rated load; Mechanical: 10,000,000 operations
• Backplane Current Draw: 125 mA @ 5V DC, 0 mA @ 24V DC
• Operating Temperature: 0°C to 60°C
• Certifications: UL Listed, CE, CSA, RoHS, Class I Div 2

Application Areas

• General-purpose switching of AC/DC field devices
• Control of relays, contactors, pilot lights, and alarms
• Industrial automation panels
• Building management and utility control systems
• OEM machinery requiring relay-based output interfaces

Advantages

• High channel density in a compact format
• Supports wide voltage ranges for flexible application use
• Rugged and durable relay contacts for long life
• Easy maintenance with removable wiring terminals
• Full compatibility with the Allen-Bradley SLC 500 system