Allen-Bradley 1794-OB8EP Flex I/O Digital DC Output Module 8 Ch

Product Overview

The Allen-Bradley 1794-OB8EP is a Flex I/O digital DC output module. It offers 8 sourcing current outputs. Each output can handle up to 2A. The module uses an electronic fuse to disconnect outputs during faults. You can insert or remove it under power. This saves time and avoids system restarts. The 1794-OB8EP works with terminal bases like the 1794-TB2, 1794-TB3, and others.

Application Scenarios

This module controls DC loads in industrial environments. Use it for solenoids, relays, and motor starters. It suits factory automation, packaging lines, and material handling. The robust design fits harsh conditions. The electronic fuse protects downstream devices. This reduces downtime and maintenance costs.

Technical Specifications

The module has 8 sourcing outputs. On-state voltage is 24V DC nominal (19.2 to 31.2V DC). Maximum output current is 2A per channel. On-state voltage drop is 0.2V DC max. Off-state leakage current is 0.5mA max. Isolation voltage is 50V continuous. FlexBus current draw is 73mA at 5V DC. Power dissipation is 5.5W at 31.2V DC max. Thermal dissipation is 18.8 BTU/hr. Output delay time is 0.1ms max from off to on and on to off. The module has 16 yellow LED status indicators. Communication options include ControlNet, DeviceNet, EtherNet/IP, and Universal Remote I/O.

Installation & Maintenance Guide

Mount the 1794-OB8EP on a DIN rail. First attach the terminal base to the rail. Then snap the module onto the base. You can connect field wiring without direct wiring to the module. This allows hot swapping. Use screw terminals on the base. Torque screws to 0.56-0.79 Nm. Wire size ranges from 0.34 to 3.3 mm². Ensure external power supply meets 19.2 to 31.2V DC with 5% AC ripple. The module draws 20-35mA from the external supply.

Packing List

1 x Allen-Bradley 1794-OB8EP Flex I/O Digital DC Output Module
1 x Installation Manual
Shipping via FedEx, UPS, or DHL.