Product Details
Product Description
The Allen Bradley 1794-OB8EP FLEX I/O module delivers eight current-sourcing digital outputs, engineered for reliable performance in distributed control systems. Designed for use with multiple terminal base units, it provides fast signal response, electronic output fusing, and robust isolation for industrial automation environments.
Technical Specifications
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Manufacturer Allen Bradley
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Product Line FLEX I/O
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Module Type Digital DC Output Module
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Part Number 1794-OB8EP
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Outputs 8 current-sourcing channels
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Recommended Terminal Bases 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBN, 1794-TB3K, 1794-TB3SK, 1794-TBNK
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On-State Voltage Range 19.2 V DC (min) to 31.2 V DC (max), nominal 24 V DC
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Output Current Rating Up to 2.0 A per channel, maximum 10.0 A per module
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On-State Current 1.0 mA minimum, 2.0 A maximum per channel
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Voltage Drop (On-State) ≤ 0.2 V DC
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Surge Current 4 A for 50 ms, repeatable every 3 seconds
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Off-State Leakage Current ≤ 0.5 mA
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Isolation Voltage 50 V continuous, tested at 850 V DC for 1 s (field-to-system); no channel-to-channel isolation
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Signal Delay 0.1 ms (Off to On / On to Off)
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FlexBus Current 73 mA @ 5 V DC
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Power Dissipation 5.5 W max @ 31.2 V DC
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Thermal Dissipation 18.8 BTU/hr max @ 31.2 V DC
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Fusing Outputs electronically fused
Application Scenarios
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Distributed control systems requiring multiple DC outputs
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Industrial automation panels with compact I/O requirements
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High-speed digital output applications with strict timing needs
FAQ
Q: How many outputs does the 1794-OB8EP provide? A: It offers 8 current-sourcing digital outputs.
Q: What terminal bases are compatible with this module? A: It supports 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBN, 1794-TB3K, 1794-TB3SK, and 1794-TBNK.
Q: Does the module include output protection? A: Yes, all outputs are electronically fused for safety and reliability.
Comparable Models
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1794-OB8EP: 8-point DC output module (this model)
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1794-OB16: 16-point DC output module for higher density
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1794-IB16: 16-point input module for digital signal acquisition
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Redundant Automation Systems: Ensuring Continuous Uptime in Critical Control Infrastructure
System reliability directly determines operational profitability across high stakes process industries. Modern industrial automation platforms must eliminate single points of failure to prevent catastrophic shutdowns. Deploying fault tolerant architecture safeguards complex facilities against unexpected hardware glitches, network disruptions, and maintenance outages.
Understanding Types of Noise in Electronic Circuits and Control Systems
Signal integrity directly determines measurement accuracy and loop stability across industrial automation environments. Electronic noise introduces unwanted stochastic interference into analog loops, sensor feedback lines, and digital fieldbus networks. Understanding how intrinsic electronic noise and external electromagnetic interference manifest allows control engineers to optimize signal conditioning and shield sensitive instrumentation effectively.
Why 24V DC Power Supplies Standardize Modern Industrial Automation
Industrial control cabinets worldwide rely on 24V DC as the universal power standard for field instrumentation, sensors, and controllers. Walk into any manufacturing plant, and you will find PLCs, human-machine interfaces (HMIs), and smart actuators running on extra-low voltage DC. Standardizing on 24V DC enhances operational safety, lowers cabinet footprint, and maintains steady control performance across factory networks.