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: Core Architecture, Business Value, and Technical Advantages
Unplanned downtime poses a major financial threat to process manufacturing. To prevent costly interruptions, engineers deploy redundant PLC and DCS architectures that ensure continuous operation when hardware fails. This technical guide explores redundancy principles, critical system nodes, and real-world scenarios.
Preventing Emergency Stop Spurious Trips in Industrial Control Systems
Emergency Stop pushbuttons use Normally Closed contacts for fail-safe safety, but mechanical wear can cause costly spurious trips. This technical guide examines E-Stop contact failure root causes, redundant hardware setups, PLC logic monitoring, and maintenance strategies to maximize plant availability.
Why 24V DC Is the Universal Standard for Industrial Automation Power Supplies
Industrial manufacturing requires continuous uptime to prevent equipment damage. Unlike AC power, 24V DC circuits seamlessly integrate with UPS units and battery banks. During main grid failures, a 24V DC backup system instantly maintains PLC memory, instrument loops, and critical safety valves without interruption.