Allen-Bradley 5094-OW8I Flex 5000 Relay 8-Output Isolated | Replacement, Equivalent & Selection Guide
The Allen-Bradley 5094-OW8I is a Flex 5000 series relay output module featuring 8 isolated relay output channels. Designed for Rockwell Automation EtherNet/IP-based control architectures, it delivers robust switching capability for demanding industrial applications. This page provides full technical specifications, compatible replacements, equivalent models, and a structured selection guide to help engineers and procurement teams make confident sourcing decisions.
Technical Specifications
- Part Number: 5094-OW8I
- Series: Flex 5000 (5094)
- Manufacturer: Allen-Bradley / Rockwell Automation
- Module Type: Relay Output, Isolated
- Number of Outputs: 8 channels (individually isolated)
- Output Type: Relay (Form A / SPST-NO)
- Isolation: Channel-to-channel isolated
- Load Voltage: 10–265 V AC / 5–125 V DC
- Max Load Current: 2 A per point
- Communication: EtherNet/IP via Flex 5000 adapter
- Backplane Compatibility: Flex 5000 I/O system
- Operating Temperature: 0°C to 60°C (32°F to 140°F)
- Certifications: UL, CE, cUL
- Weight: Approx. 500 g
- Country of Origin: USA
Compatible Replacement & Equivalent Models
When the 5094-OW8I is unavailable or under evaluation, the following models may serve as functional equivalents or drop-in replacements depending on your system configuration:
- 1794-OW8 (FLEX I/O) — 8-point relay output, non-isolated; suitable for legacy FLEX I/O racks with DeviceNet/ControlNet adapters
- 1756-OW16I (ControlLogix) — 16-point isolated relay output for ControlLogix chassis; higher channel density alternative
- 1769-OW8 (CompactLogix) — 8-point relay output for CompactLogix systems; non-isolated channels
- 5094-OW8 (Flex 5000, non-isolated) — Same series, shared-common relay output; lower cost when isolation is not required
- Siemens 6ES7 322-1BH01-0AA0 — Third-party equivalent relay output module for cross-brand evaluation
Note: Always verify backplane compatibility, adapter firmware version, and load ratings before substituting modules in a live system.
Why Choose the Original 5094-OW8I
- True channel-to-channel isolation eliminates ground loops and protects sensitive loads in mixed-voltage environments
- Native EtherNet/IP integration with Studio 5000 Logix Designer for seamless tag-based programming
- Rockwell Automation ecosystem support — full firmware updates, TechConnect support, and lifecycle management
- Proven reliability in high-cycle industrial environments including automotive, food & beverage, and utilities
- Compact Flex 5000 form factor reduces panel footprint versus traditional rack-based I/O
Typical Applications
- Motor starter and contactor control in isolated multi-zone systems
- Valve and actuator switching with mixed AC/DC load requirements
- Conveyor and material handling control panels
- HVAC and building automation relay switching
- Water/wastewater pump control with galvanic isolation requirements
- Batch process control in food, beverage, and pharmaceutical plants
System Compatibility
- Adapter Required: 5094-AENTR or 5094-AEN2TR (EtherNet/IP adapter)
- Compatible Controllers: ControlLogix 5580, CompactLogix 5380, Logix 5380 Safety
- Software: Studio 5000 Logix Designer v31.0 or later
- Firmware: Compatible with Flex 5000 adapter firmware v4.x and above
- Backplane Slots: Occupies 1 slot in Flex 5000 I/O bank
Selection Guide
Use the table below to select the right Flex 5000 output module for your application:
- Need isolated relay outputs + EtherNet/IP? → 5094-OW8I ✓
- Need relay outputs, isolation not required? → 5094-OW8 (shared common, lower cost)
- Need higher channel count (16 points)? → 1756-OW16I (ControlLogix chassis required)
- Need solid-state DC output instead of relay? → 5094-OB16 or 5094-OB8
- Need safety-rated output? → 5094-OBV8S (safety relay output)
- Legacy FLEX I/O system? → 1794-OW8 with 1794-AENT adapter
Quality Assurance & Sourcing
- All units sourced through authorized distribution channels or verified surplus with full traceability
- Pre-shipment inspection includes visual check, label verification, and functional continuity test
- Original factory packaging preserved where available; anti-static packaging for all shipments
- Certificate of Conformance (CoC) available upon request
- Counterfeit-prevention policy: all units cross-referenced against Rockwell Automation part databases
How to Order
- Part Number: 5094-OW8I
- Lead Time: Contact us for current stock and lead time
- MOQ: 1 unit
- Payment: T/T, PayPal, credit card accepted
- Shipping: DHL / FedEx / UPS worldwide; local freight available for bulk orders
- Request a Quote: Email support@konmask.com or call +0086 19859288691
Replacement & Compatibility FAQ
Q: Can I replace 5094-OW8I with 5094-OW8?
A: Yes, functionally similar but 5094-OW8 uses a shared common — not suitable if channel-to-channel isolation is required.
Q: Is 5094-OW8I compatible with ControlLogix?
A: No, it requires a Flex 5000 adapter (5094-AENTR). For ControlLogix chassis, use 1756-OW16I instead.
Q: What is the maximum switching current per channel?
A: 2 A per output point at rated voltage.
Q: Can I mix AC and DC loads on different channels?
A: Yes — the isolated design allows each channel to switch independent voltage types.
Q: Do you supply new, refurbished, or surplus units?
A: We supply new and verified surplus units. Condition is clearly stated on each listing. Contact us for specifics.
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