Relay Output Module Allen-Bradley 1794-OW8 Flex I/O

Product Overview

The Allen-Bradley 1794-OW8 is a Flex I/O relay output module. It features eight isolated normally open relays. Each relay is electromechanical and form A. The module works with terminal bases like 1794-TB2 and 1794-TB3. It provides reliable output switching for industrial control systems. The module has a compact design. It mounts easily on a DIN rail.

Application Scenarios

This module switches AC loads up to 250V AC at 2A. It also handles DC loads from 5 to 30V DC at 2A. Use it for motor starters, solenoids, and indicator lights. It works in factory automation and process control. The isolated channels protect sensitive circuits. It is suitable for packaging machines and material handling.

Technical Specifications

The 1794-OW8 has eight relay outputs. Supply voltage is 24V DC at 125 mA. Contact rating is 250V AC, 2A resistive. Pilot duty rating is R150. Off-state leakage current is 1.0 mA. Minimum contact load is 100 μA at 100 mV DC. Initial contact resistance is 30 mΩ. Bounce time is 1.2 ms. Switching frequency is 0.3 Hz at rated load. Power dissipation is 5.5 watts. Thermal dissipation is 18.8 BTU per hour. Operating temperature is 0 to 55 degrees C. Storage temperature is -40 to 85 degrees C. Vibration is 5g at 10 to 500 Hz. Shock is 30 g. Dimensions are 1.8 by 3.7 by 2.1 inches. Module draws 35 mA from 5V DC bus. Keyswitch position is 9. Eight yellow LED indicators show status.

Installation & Maintenance Guide

Mount the module on a DIN rail. Use a compatible terminal base. Set the keyswitch to position 9. Wire field devices to the terminal base. Use 24V DC power only. Ensure proper fuse for 1794-TBNF base. The module has status LEDs for each channel. Inspect contacts periodically. Mechanical life is 100,000 operations at rated load.

Packing List

1 x Allen-Bradley 1794-OW8 relay output module. No terminal base included. Order terminal base separately. Shipping via FedEx, UPS, or DHL.