Product Details
Description
The TU811 3BSE008526R1 is designed for compact cabinet installations, connecting up to 8 I/O channels with a single-wire termination scheme and shared common return to save space. Its passive backplane ensures high reliability and stability by avoiding active electronics. The TU811 supports hot-swapping of S800 I/O modules for maintenance without disconnecting field cables. Mechanical keying pins prevent incompatible module insertion, safeguarding process control hardware.
Specifications
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Manufacturer: ABB
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Country of Origin: Sweden
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Model Number: TU811
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Order Number: 3BSE008526R1
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Product Type: Compact Module Termination Unit (MTU)
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Weight: 0.32 kg
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Terminal Count: 12 Screw Terminals
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Maximum Rated Voltage: 50 V DC
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Maximum Rated Current: 2 A per channel
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Wiring Type: Single-wire connection with shared return
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Mounting: 35mm standard DIN rail
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Ingress Protection: IP20
Features
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Space-Efficient Design: Compact width allows for higher I/O density within standard electrical cabinets, reducing overall hardware footprint.
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Streamlined Connectivity: Features 12 screw terminals optimized for 8-channel modules using a common return path for simplified wiring.
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Hot-Swap Support: Permits the installation and removal of active I/O modules while the station is powered, minimizing process downtime.
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Passive Circuitry Architecture: Hardware-only routing design maximizes the Mean Time Between Failures (MTBF) by removing electronic failure points.
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Mechanical Coding Safety: Built-in keying system ensures only correctly matched I/O modules can be seated, preventing accidental equipment damage.
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Universal DIN Rail Mounting: Designed for easy snap-on installation on standard 35mm rails, supporting both vertical and horizontal orientations.
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
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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.