Product Summary
The 1794-OM8 Flex I/O module drives eight AC outputs at 240V with a total current of 4.0A. It supports hot-swap installation without restarting the system, saving valuable production time. This module delivers robust switching for solenoid valves and motor starters in factory environments.
Procurement Guide: Selecting the Right Output Module
Specifying the correct output module requires careful matching of voltage, current, and isolation. The 1794-OM8 operates at 240V AC nominal with an on‑state voltage range from 159 to 264V AC. Each output handles up to 500mA continuous, while the entire module delivers 4.0A total.
Engineers must verify that the load current per channel stays below 500mA at 55°C. The module’s off-state leakage is only 2.5mA max, preventing false triggering of sensitive loads. Use the 1794‑TBN or 1794‑TBNF terminal bases for mechanical and electrical connection.
Procurement teams benefit from the module’s flexibility. It communicates via ControlNet, DeviceNet, EtherNet/IP, or Universal Remote I/O. This compatibility reduces the need for separate communication adapters. The hot‑swappable design allows replacement without powering down the cabinet, minimizing downtime.
Expert Technical Evaluation & Performance Review
The 1794-OM8 exhibits excellent thermal performance. Power dissipation reaches a maximum of 5W at 0.5A per output, translating to 17.1 BTU/hr. This low heat output enables dense panel layouts without excessive cooling requirements. The module draws only 60mA from the 5V Flexbus, leaving ample power for other I/O cards.
Voltage drop across the output switch is limited to 1.5V AC at 0.5A. This ensures the load receives nearly full line voltage. The isolation voltage is 250V continuous, providing reliable separation between field wiring and the backplane. Yellow LED indicators on each channel confirm output status at a glance.
For extreme environments, XT versions of the 1794-OM8 operate from 0 to 55°C with 5‑95% non‑condensing humidity. This ruggedization lowers panel maintenance costs and extends service life. The module snaps onto a DIN rail for quick installation.
Logistics & Standard Packaging Details
Each 1794-OM8 unit ships with a mounting instruction sheet and a protective anti‑static bag. The package does not include the terminal base (order separately). Standard delivery options include express shipping via FedEx, UPS, and DHL for fast global fulfillment.
Order today to secure reliable AC output control for your automation system.
