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
Evolving SCADA System Architectures in Industrial Automation
A robust Supervisory Control and Data Acquisition (SCADA) system serves as the heartbeat of modern industrial operations. Understanding SCADA system architecture is vital for engineers designing efficient control systems. These architectures have evolved from isolated, monolithic structures to highly interconnected, networked ecosystems. Choosing the right design requires balancing data visibility, processing power, and long-term scalability requirements.
Choosing the Right Controller: PLC vs. Motion Controller in Industrial Automation
Selecting the optimal control architecture is a foundational decision in industrial automation. Engineers must frequently choose between a Programmable Logic Controller (PLC) and a dedicated Motion Controller. While both systems manage machinery, their underlying design philosophies differ significantly, impacting performance, scalability, and system integration.
Mastering PLC Power Supply Architectures and Operating Voltages
Selecting the correct operating voltage is a critical step in designing reliable industrial automation systems. Whether you are working with a compact PLC or a large-scale DCS, your power architecture dictates the system's longevity. In this guide, we explore the standard voltage ranges and power distribution strategies required to maintain stable factory automation operations.