Product Details
Description
The TU842 module termination unit supports redundant 24 V DC output modules like the DO840, ensuring continuous actuator control during faults or module replacement. It features shared field wiring, isolated power groups, and hot-swap capability, ideal for high-uptime, safety-critical applications in energy, water, and chemical industries.
Specifications
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Manufacturer: ABB
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Country of Origin: Estonia / Sweden
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Model Number: TU842
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Order Number: 3BSE020850R1
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Product Series: S800 I/O
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Mounting Type: Dual-slot for redundancy
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Rated Voltage: 24 V DC
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Maximum Current: 8 A per unit
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Process Connections: 16 channels (Group isolated)
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Approximate Weight: 0.55 kg
Features
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Redundancy Support: Dual-module mounting capability eliminates single points of failure for critical output loops.
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Seamless Field Wiring: Consolidates wiring for 16 channels into a single, organized terminal block for both primary and backup modules.
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Hot-Swap Performance: Internal circuitry allows for the extraction and insertion of I/O modules while the station remains under power.
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Mechanical Security: Includes individual mechanical keying for each slot to prevent the installation of incorrect module types.
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Enhanced Protection: Built-in fuse points and isolation barriers protect the ModuleBus from field-side electrical disturbances.
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
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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.
Optimizing Power Supply Sizing for Industrial Automation Systems
The power supply is the silent heartbeat of any industrial automation system. While engineers often prioritize processors and communication protocols, a stable power architecture remains the most critical factor for long-term reliability. In my 15 years of experience, I have found that neglecting power supply sizing often leads to ghost errors, intermittent field device failures, and costly production downtime.