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

Product Overview

The Allen-Bradley 1794-OW8 is a Flex I/O relay output module. It provides eight isolated normally open relay outputs. Each relay handles up to 250V AC at 2A. This module works with 1794-TB2, 1794-TB3, and other terminal bases. It draws 35 mA from the FlexBus. The module suits various industrial control applications.

Application Scenarios

Use the 1794-OW8 to switch AC or DC loads in manufacturing. It controls motors, valves, and lights. The module fits in distributed I/O systems. It connects to Allen-Bradley controllers via adapters. Typical sectors include automotive, packaging, and material handling.

Technical Specifications

Number of outputs: 8, Form A (N.O.) isolated. Output voltage: 74-132VAC. Relay contacts rated at 250V AC, 2A resistive. Also 120/240V AC, 1800VA make, 180VA break. DC rating: 5-30V DC, 2A resistive. Supply voltage: 24V DC, 125 mA. Power dissipation: 5.5W. Operating temperature: 0 to 55 C. Storage temperature: -40 to 85 C. Vibration: 5g @ 10-500 Hz. Shock: 30g. Off-state leakage: 1.0 mA. Bounce time: 1.2 ms. Switching frequency: 0.3 Hz at rated load. Mechanical life: 100,000 operations.

Installation & Maintenance Guide

Mount the module on a DIN rail. Use a compatible terminal base like 1794-TB3. Set keyswitch position to 9. Wire field devices to the terminal strip. Use 5-30V DC for relay loads. Check polarity for DC supply. Do not exceed 24V DC on power terminals. Clean contacts periodically. Replace the module if outputs fail. Ship via Fedex, UPS, or DHL.

Packing List

The package includes one Allen-Bradley 1794-OW8 relay output module. No terminal base included. Order terminal base separately. Packing includes anti-static bag and documentation.