Overview
The Allen-Bradley 1746-OW16 is a 16-point digital relay output module designed for the SLC 500 modular controller platform. This module delivers relay contact outputs suitable for controlling AC and DC loads in diverse industrial automation and motion control applications. The remanufactured 1746-OW16 combines proven performance with cost-effective availability.
Key Features
- 16 Digital Relay Outputs — divided into two groups of 8 points, each with independent common terminal for mixed voltage operation
- Dual Voltage Support — operates at 5–125V DC and 5–265V AC, ideal for applications with mixed voltage categories
- Solid-State Relay Technology — suitable for controlling contactors, solenoids, and inductive loads
- Fast Turn-Off Option — available for inductive load control with reduced OFF delay
- Hazardous Location Rated — approved for North American Class I, Division 2 environments
- Removable Terminal Blocks — enable quick wiring and field maintenance
Technical Specifications
- Output Points: 16 digital relay outputs
- Voltage Range (DC): 5–125V DC
- Voltage Range (AC): 5–265V AC (47–63 Hz)
- Load Current (Minimum): 10 mA at 5V DC
- Signal Delay: 10 ms (ON and OFF at maximum resistive load)
- Backplane Current (5V DC): 0.17A
- Backplane Current (24V DC): 0.18A
- Operating Temperature: 0–60°C
- Mounting: DIN Rail / Chassis
- Thermal Dissipation: 5.7W maximum
- Certifications: UL, CSA, GOST, KC
- Points Per Common: 8
- Response Time: 0–10 milliseconds
Typical Applications
The 1746-OW16 is commonly deployed in:
- Material handling and conveyor systems
- HVAC control and building automation
- High-speed assembly operations
- Small process control systems
- Simple motion control applications
- SCADA systems and remote monitoring
- Hazardous location environments (Class I, Division 2)
Compatibility & Replacements
Compatible With
- Allen-Bradley SLC 500 modular controller family
- SLC 5/01, SLC 5/02, SLC 5/03, SLC 5/04, and SLC 5/05 processors
- SLC 500 local and remote I/O racks
- ControlNet and DeviceNet networks (with appropriate interface modules)
- RSLogix 500 programming software
Replaces / Drop-In Replacement For
- Earlier versions of Allen-Bradley 1746-OW16 (Series A and Series B)
- Direct replacement for failed or aged 1746-OW16 modules
- Verify compatibility with your system integrator before ordering for specific legacy configurations
Works With
- RSLogix 500 engineering software
- Allen-Bradley Studio 5000 (via legacy support)
- SLC 500 proprietary communication protocols
- EtherNet/IP adapters (1747-AENTR) for distributed I/O upgrades
- Standard SLC 500 programming libraries and subroutine libraries
