Relay Output Module 1769-OW16 Allen-Bradley

Product Overview

The 1769-OW16 is a high-density electromechanical relay output module for Allen-Bradley CompactLogix and MicroLogix 1500 families. It provides 16 normally open (N.O.) contacts, offering a robust solution for switching diverse AC and DC loads within a single slot.

With two isolated groups of eight points each, engineers can control multiple circuits with varying voltage levels or phases. Its mechanical relay design ensures zero off-state leakage current, making it ideal for safety interlocks, pilot lights, and applications where solid-state leakage could cause false "ON" states.

Technical Specifications

System Compatibility and Installation

• Controllers: Directly connects to CompactLogix 5370 CPUs or MicroLogix 1500 bases.

• Remote I/O: Compatible with 1769-AENTR (EtherNet/IP) and 1769-ADN (DeviceNet) adapters.

• Power Supplies: Designed for use with 1769-PA2, 1769-PB2, 1769-PA4, or 1769-PB4 modules.

• Mounting: Supports 35mm DIN rail or direct panel mounting for high-vibration environments.

Common Technical Questions

• Can I switch 120V AC and 24V DC simultaneously?
  Yes. With two isolated groups (0–7 and 8–15), you can supply 120V AC to Group 1 and 24V DC to Group 2 without electrical interference.

• Why is there a 10 ms switching delay?
  The module uses electromechanical relays, which require physical contact movement. This, combined with contact debounce logic, results in a 10 ms delay. For microsecond switching applications, a solid-state module like the 1769-OB16 is recommended.