Allen-Bradley 1794-OW8 FLEX

Allen-Bradley 1794-OW8 | Reliable Relay Output Module for FLEX I/O Systems

Overview

The Allen-Bradley 1794-OW8 is an 8-point relay output module designed for the FLEX I/O system. It provides Form A (normally open) electromechanical relay outputs, suitable for controlling various loads in industrial automation applications. The module mounts on compatible terminal base units and offers reliable performance in a compact, open-style design.

Key Features

• Output Type: 8 Form A (N.O.) electromechanical relays

• Contact Rating:

  • 2 A at 250V AC resistive

  • 2 A at 30V DC resistive

• Minimum Contact Load: 100 µA at 100 mV DC

• Off-State Leakage Current: 1.0 mA max at 240V AC through snubber circuit

• Switching Frequency: Max 0.3 Hz at rated load

• Expected Electrical Life: Minimum 100,000 operations at rated load

• FlexBus Current: 35 mA at 5V DC

• Supply Voltage: 24V DC ±10% (125 mA)

• Mounting: DIN rail via compatible terminal base units

• Enclosure Type: Open-style (IP20)

• Operating Temperature: -20°C to 55°C (-4°F to 131°F)

• Certifications: UL, cULus, CE, ATEX, IECEx, RoHS

Technical Specifications

• Catalog Number: 1794-OW8

• Dimensions (HxWxD): 94 x 94 x 69 mm (3.7 x 3.7 x 2.7 in.)

• Weight: Approximately 0.135 kg

• Isolation Voltage:

  • 250V (continuous), basic insulation between relay contacts and backplane

  • Type tested at 1500V AC for 60 seconds

• Terminal Base Compatibility:

  • 1794-TB2

  • 1794-TB3

  • 1794-TB3S

  • 1794-TBN

  • 1794-TBNF

• Fusing: Recommended 3.0 A, 250V AC slow-blow fuses (e.g., Littelfuse 239003) when using 1794-TBNF base

Applications

• Motor starters

• Solenoid valves

• Pilot lights

• Alarm systems

• General-purpose relay control in industrial automation

Why Choose the 1794-OW8?

• Versatility: Suitable for both AC and DC load control

• Compact Design: Saves panel space with a small footprint

• Ease of Installation: DIN rail mounting with compatible terminal bases

• Reliable Performance: High-quality relays ensure consistent operation

• Integration: Seamlessly integrates into FLEX I/O systems for distributed control

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Available and ready to ship globally.