Overview
The Allen-Bradley 1762-OB16 is a MicroLogix solid-state expansion I/O module that adds 16 discrete 24VDC sourcing output channels to MicroLogix 1100, 1200, and 1400 controllers. This module energizes electrical loads and actuating devices via reliable solid-state switching with minimal signal delay.
Key Features
- 16 discrete 24VDC source output channels in a compact form factor
- Solid-state switching with 0.1 ms ON delay and 1.0 ms OFF delay
- Operating voltage range 20.4–26.4 VDC provides tolerance for power supply variation
- DIN rail or panel mount configuration with optional vibration anchors
- Supports up to 4 (1100) / 6 (1200) / 7 (1400) expansion modules per controller
- Industrial certifications: CE, C-UL-us, C-Tick, KCC
Technical Specifications
- Per-point continuous current: 1.0A @ 30°C (86°F) or 0.5A @ 55°C (131°F)
- Module continuous current: 8.0A @ 30°C or 4.0A @ 55°C
- Input power supply voltage: 20.4–26.4 VDC (externally powered)
- Output voltage: 24 VDC nominal
- Bus connector: 10-pin female ribbon cable
- Signal delay: 0.1 ms ON, 1.0 ms OFF
- Operating temperature: 0–55°C (32–131°F)
- Operating humidity: 5–95% non-condensing
- Maximum altitude: 2,000 m (6,561 feet)
- Mounting: DIN rail or panel mount
- Vibration/shock: 10–500 Hz, 5g (DIN rail), 30g (panel)
- Enclosure rating: IP20
- Terminal type: Screw connection
Typical Applications
The 1762-OB16 is widely used to control discrete DC loads in compact automation systems, including:
- Solenoid valves and pilot-operated actuators
- Motor starters, contactors, and relay coils
- Indicator lamps, buzzers, horns, and annunciators
- Final control elements (FCE) for ON/OFF circuits
- Machine tool automation, packaging equipment, and material handling systems
Compatibility & Replacements
The 1762-OB16 is a direct expansion module for MicroLogix 1100, 1200, and 1400 controllers. If replacing an existing module with an identical part number, the module will be recognized automatically on power-up. For non-identical replacements, hardware reconfiguration and program download are required. External hardwire modifications may also be necessary.
The comparable 8-point output module is the 1762-OB8. The 1762-OB16 provides double the output density in the same footprint, making it ideal for maximizing panel space and reducing the number of modules required in control systems.
