Product Details
Description
The DO821 3BSE013250R1 is an 8-channel AC output module with triac switching, each channel individually isolated for safety. It handles AC loads up to 0.25 A, mounts on an MTU via ModuleBus, and supports hot-swapping for maintenance without system downtime in industrial applications.
Specifications
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Manufacturer: ABB
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Country of Origin: Switzerland
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Model Number: DO821 (3BSE013250R1)
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Product Type: Digital Output Module
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Number of Channels: 8 (Individually Isolated)
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Rated Output Voltage: 230 V AC
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Voltage Range: 164 V to 264 V AC
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Max. Continuous Current: 0.25 A per channel
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Isolation: 2500 V galvanic isolation per channel
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Switching Type: AC (Triac)
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Interface: S800 ModuleBus
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Weight: 0.35 kg
Features
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Direct 230V AC Control: Capable of switching mains-level voltages directly, reducing the need for interposing relays in the control cabinet.
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Per-Channel Isolation Architecture: Features independent galvanic isolation for every channel, providing superior protection against electromagnetic interference and ground loops.
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Non-Mechanical Switching: Utilizes robust solid-state technology for AC switching, offering a longer operational life compared to traditional relay contacts.
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S800 Hot-Swap Performance: Engineered for high-availability systems, the module can be safely replaced under power without interrupting the I/O station.
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Industrial Diagnostics: Integrated front-panel LED indicators provide real-time status updates for each channel's state and general hardware health.
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Enhanced System Safety: Built to rigorous industrial standards to protect the low-voltage control logic from high-voltage field-side transients.
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
PLC vs. HMI: Distinguishing the Brain from the Interface in Industrial Automation
In the realm of industrial automation, distinguishing between a Programmable Logic Controller (PLC) and a Human-Machine Interface (HMI) is fundamental. While both devices work in tandem, they serve distinct purposes. The PLC acts as the "brain" of the operation, executing logic, whereas the HMI serves as the "eyes," allowing operators to monitor and interact with the system. Understanding this synergy is essential for any professional designing robust factory automation solutions.
Selecting the Right Industrial Automation Solution for Modern Manufacturing
Choosing an effective industrial automation system starts with a thorough process audit. You must identify tasks that are repetitive, labor-intensive, or prone to human error. Not every process requires high-level automation; therefore, prioritize operations that directly impact throughput and quality. By scoping your needs accurately, you avoid over-investing in unnecessary technology. A balanced approach ensures that your capital expenditure aligns with measurable gains in operational efficiency.
Implementing FIFO and LIFO Data Sequencing in PLC Programming
Data management serves as a cornerstone of modern industrial automation. Whether tracking materials on a conveyor or managing batch sequences in a process, engineers frequently rely on sequential logic. Two primary structures—First-In-First-Out (FIFO) and Last-In-First-Out (LIFO)—form the bedrock of this data handling. Mastering these blocks allows programmers to optimize complex machine operations efficiently.