Overview
The Allen-Bradley 1746-OW16 is a 16-point digital relay output module engineered for the SLC 500 family of programmable controllers. This module provides solid-state relay outputs suitable for controlling various devices and equipment in industrial automation, process control, and material handling applications. The 1746-OW16 delivers dependable performance with removable terminal blocks for straightforward installation and maintenance.
Key Features
- 16 isolated relay outputs with Normally Open configuration
- Removable terminal blocks for easy wiring and field service
- LED status indicators for output monitoring
- Operates across 5–265V AC and 5–125V DC load voltages
- Minimum load current 10 mA at 5V DC for reliable activation
- Fast signal response: 1 ms ON delay, 11 ms OFF delay (resistive loads)
- Approved for Class I, Division 2 hazardous locations
Technical Specifications
- Output Configuration: 16 points, divided into two groups of 8 with independent commons
- Output Type: Relay (Normally Open)
- Voltage Range (AC): 5–265V AC at 47–63 Hz
- Voltage Range (DC): 5–125V DC
- Load Current (Min): 10 mA at 5V DC
- Off-State Leakage: 0 mA (per output), 2 mA max on module
- Backplane Current: 0.17 A @ 5 VDC; 0.18 A @ 24 VDC
- Signal Delay (Resistive Load): 1 ms ON; 11 ms OFF
- Maximum Power Rating: 10W per output
- Mounting Style: Rack mounted in SLC 500 chassis
- Weight: 0.64 lbs
- Operating Temperature: 0–60°C
- Indicator Style: LED status lights
Typical Applications
- Motor and pump control in industrial machinery
- Solenoid valve actuation for fluid and pneumatic systems
- Conveyor belt and material handling automation
- HVAC control and facility management systems
- Process control and discrete manufacturing operations
- Equipment shutdown and emergency stop circuits
Compatibility & Replacements
Compatible With
- SLC 500 modular PLC chassis (1746, 1747 series)
- SLC 5/01, 5/02, 5/03, 5/04, and 5/05 processors
- ControlLogix and CompactLogix systems via adapter modules
- Standard SLC 500 programming software (RS-Logix 500)
- EtherNet/IP and DeviceNet communication networks (with interface modules)
Replaces / Drop-In Replacement For
- 1746-OW16/A – Earlier revision
- 1746-OW16/B – Previous version
- Verify revision compatibility with your system integrator before ordering.
Works With
- RSLogix 500 programming environment
- 1747-AENTR EtherNet/IP adapter for distributed I/O
- 1746-A4 power supply and expansion modules
- Allen-Bradley remote I/O terminals and communication interfaces
