Allen-Bradley 1746-OW16 DC Relay Module

Description

The Allen-Bradley 1746-OW16 DC Relay Module is a 16-point digital output module designed for integration with the SLC 500 series programmable logic controllers (PLCs). As a relay-based output module, it features 16 normally open (N.O.) relay contacts split into 2 output groups of 8 points each, making it suitable for applications requiring mixed voltage category setups. Key technical specifications include a wide operating voltage range of 5-265V AC or 5-125V DC, with output current ratings of 1.5A per point at 120V AC and 1.2A per point at 24V DC; the module supports a maximum continuous total current of 16A and has a maximum heat dissipation of 5.7W. Under heavy resistive loads, it provides consistent 10ms signal delay for both on and off states. Backplane current draw is 0.17A at 5V DC and 0.18A at 24V DC. Its relay output design delivers electrical isolation, enhancing system stability and reliability by reducing external electrical interference. Ideal for industrial automation scenarios, it can drive various loads such as relays, solenoid valves, and small motors, supporting use cases like factory production line control, building lighting and access control, and process control for pumps and valves.