Configured for discrete relay switching and load control in industrial automation networks, the Allen-Bradley 1794-OW8XT (1794-OW8XT Flex I/O Relay Output Module) provides direct physical/electrical execution.

Nomenclature and Suffix Breakdown

• Platform Identifier: 1794
• Module Series: Flex I/O Discrete Output Module
• Variant Code: OW8XT (8 Form A relay contacts, extended temperature range configuration)

Hardware Specification Matrix

Allen-Bradley Industrial Control and Drive Architecture

• Backplane Bus Communication Velocity: Maintains high-speed deterministic data exchange across the modular Flexbus backplane architecture to ensure synchronized discrete output updates.
• Profinet and EtherNet/IP Deterministic Networks: Interfaces seamlessly with high-speed fieldbus adapters to translate network commands into precise physical relay actuation without communication latency.
• I/O Density Scaling: Optimizes panel space by packing 8 discrete relay output points into an open-style, IP20 rated module housing designed for high-density architectures.
• Firmware Flash Compatibility: Supports system integration requirements through standard backplane communication protocols, allowing transparent controller coordination during runtime operations.

Delivery Package Contents

• 1 x Allen-Bradley 1794-OW8XT Flex I/O Relay Output Module
• 1 x Hardware Specification and Instruction Sheet

Physical Mounting and Hardware Installation Guidelines

• DIN-Rail Fastening: Mount the module securely onto a standard 35 mm DIN rail within an appropriate enclosure, adhering to the open-style IP20 protection constraints.
• Thermal Management: Ensure sufficient ambient airflow around the unit to sustain reliable operations across the extended -20 deg C to +70 deg C temperature range.
• Wiring and Load Separation: Route high-voltage AC load lines away from low-level signal cables to mitigate electromagnetic interference and protect internal contact circuits.

Technical Operation Queries

• What is the maximum switching frequency allowed for the relay outputs at rated load?

  The maximum switching frequency is restricted to 1 operation every 3 seconds (0.3 Hz) when driving rated loads.

• How many discrete output channels are provided on this module?

  The unit features 8 independent Form A relay contact output points for discrete load switching.

• What is the specified contact bounce time during switching operations?

  The mechanical and electrical contact bounce time is rated at 1.2 ms.

• Does the module utilize an internal snubber circuit for leakage suppression?

  Yes, an off-state leakage current of 1.0 mA passes through the integrated snubber circuit.

• What is the operating temperature range for this extended-temperature module?

  The module is rated for deployment in environments ranging from -20 deg C to +70 deg C.

• What are the physical dimensions and weight of the hardware?

  The estimated shipping dimensions are 6.2 cm x 5 cm x 10 cm with a total mass of 0.14 kg.

• Where is this specific hardware component manufactured?

  The country of origin is the United States, with distribution processing routed through Xiamen, China.

• What type of terminal base is required to support this module?

  The module requires a compatible Flex I/O terminal base unit to establish physical field wiring connections and backplane power distribution.