Product Details
Description
The DO820 3BSE008514R1 is an 8-channel relay output module with Form A contacts, each rated for 3 A. It provides full galvanic isolation between channels and system logic, mounts on an MTU for DIN-rail installation, and supports hot-swapping for maintenance without interrupting the I/O station.
Specifications
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Manufacturer: ABB
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Country of Origin: Switzerland
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Model Number: DO820 (3BSE008514R1)
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Product Type: Relay Output Module
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Number of Channels: 8 (Individually Isolated)
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Contact Type: Form A (Normally Open)
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Max. Switching Voltage: 250 V AC / 125 V DC
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Max. Continuous Current: 3.0 A per channel
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Isolation: 2500 V galvanic isolation per channel
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Communication: ModuleBus
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Power Supply: 24 V DC (Internal via ModuleBus)
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Weight: 0.35 kg
Features
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High-Capacity Relay Switching: Supports up to 3A per channel, allowing for direct control of high-power field actuators without external interposing relays.
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Universal Load Compatibility: Capable of switching a wide range of voltages up to 250V AC, making it ideal for diverse utility and manufacturing sectors.
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Per-Channel Galvanic Isolation: Individual isolation for every relay ensures maximum protection against transients and eliminates ground loop interference.
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Serviceability and Uptime: Fully supports hot-swap functionality, allowing the module to be replaced under power to maintain continuous system availability.
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Reliable Mechanical Contacts: Features high-quality relay components designed for long mechanical and electrical life cycles in heavy-duty applications.
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Integrated Hardware Diagnostics: Front-panel LED indicators provide real-time visual status for each output state and the overall integrity of the module hardware.
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.