Allen-Bradley 1771-OW16 Digital Relay Contact Output Module

Description

The Allen-Bradley 1771-OW16 Digital Relay Contact Output Module is an industrial digital output component designed for automated control systems. Built on a PCB circuit board, this module features 16 normally open (N.O.) relay contact outputs split into 2 groups of 8 points each. A core feature is its integrated electrical isolation, which blocks external electrical interference to boost overall system stability and reliability, making it suitable for noisy industrial environments.

It supports a wide range of operating voltages, including alternating current 5-265V and direct current 5-125V, enabling flexible deployment across mixed-voltage industrial applications. Technical specifications include a 10ms signal delay for both open and closed states under heavy resistive loads, a maximum heat dissipation of 5.7W, and a maximum continuous current rating of 16A per module. Backplane current consumption is 0.17A at 5V DC and 0.18A at 24V DC. As a key interface component, it connects control system logic to field actuators such as contactors, solenoid valves, indicator lights, and alarms, supporting use cases in machinery, packaging equipment, and other automated industrial setups.