Product Details
Overview
The 1746-OB8 by Allen-Bradley is a compact digital DC output module for SLC 500 PLC systems, designed to deliver reliable high-current outputs in industrial applications.
Technical Specifications
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Manufacturer: Allen-Bradley
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Product Line: SLC 500
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Part Number: 1746-OB8
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Module Type: Digital DC Output Module
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Number of Outputs: 8
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Output Voltage: 10–50 V DC (source)
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Output Current per Channel: 0.5–1 A
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Maximum Module Current: 4–8 A
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Backplane Current (5 V DC): 135 mA
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Step Response: 60 ms input, 2.5 ms output
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Applications: High-current digital output tasks
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Weight: 0.23 kg (0.50 lbs)
Mounting & Connectivity
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Compatible Racks: Standard SLC 500 racks
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Function: Enables stable interfacing for multiple DC output channels
FAQ
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Can the 1746-OB8 support high-current loads?
Yes, it supports up to 1 A per channel with total module current up to 8 A. -
What is the response time of outputs?
The module offers 60 ms input and 2.5 ms output step response for fast switching.
Comparison
Compared with 1746-OB16, the 1746-OB8 provides fewer channels but similar high-current capability in a smaller footprint, ideal for applications with limited rack space.
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.