Product Introduction
The Allen-Bradley 1762-OW8 Relay Output Module is a compact, reliable I/O expansion module from the MicroLogix series. Designed to integrate seamlessly with MicroLogix 1100, 1200, and 1400 controllers, this module provides eight normally open relay outputs that handle both AC and DC loads. Its rackless design minimizes spare parts inventory and delivers significant cost savings over traditional modular systems.
Technical Specifications
| Parameter |
Value |
| Outputs |
Eight (8) AC/DC Relay |
| Voltage Ratings |
24-125 VDC; 120-240 VAC |
| Operating Voltage Range |
5-265 VAC; 5-125 VDC |
| Max Current per Point |
2.5 A |
| Continuous Current per Common |
8 A |
| Continuous Current per Module |
16 A |
| Signal Delay |
10 ms (ON/OFF) |
| Heat Dissipation |
2.9 Total Watts |
| Mounting |
DIN Rail or Panel |
| Shipping Weight |
228 g (0.50 lbs) |
These specifications ensure reliable operation across a wide range of industrial voltages and currents, reducing downtime and maintenance costs.
Industry Applications
The 1762-OW8 excels in controlling discrete devices such as contactors, relays, solenoid valves, pilot lights, and alarm annunciators. It also handles signaling commands for variable frequency drives and motor starters. Typical applications include packaging lines, material handling, and HVAC systems where cost-effective relay outputs extend controller capability without expensive upgrades.
Installation & Setup Guidance
Mount the 1762-OW8 on an EN 50 022 35×7.5 mm or 35×15 mm DIN rail. For high-vibration environments, use DIN rail end anchors or panel mounting. Install the module at least six slots away from the controller’s power supply to maintain thermal stability. Connect via the provided ribbon cable to the adjacent expansion module or base controller. Ensure the environment maintains Pollution Degree 2 conditions – clean and dry.
Maintenance & Reliability
Relay contacts are electromechanical and have a finite life. Regularly inspect for contact wear, especially in high-cycle applications. The module’s solid-state drivers and low heat dissipation (2.9 W) enhance long-term reliability. Operate within the specified voltage and current limits to extend service life and avoid premature failure – a key factor in reducing total cost of ownership.
Selection Guide
Before purchasing, verify controller compatibility (MicroLogix 1100/1200/1400) and ensure your application’s voltage and current requirements fall within the 5-265 VAC/5-125 VDC range and 2.5 A per output. For larger loads, consider grouping outputs appropriately. UBEST Automation (ubest101) stocks this module and offers fast shipping for urgent replacements. Always confirm the exact model number 1762-OW8 when ordering to avoid compatibility issues.