Product Details
Description
The TU838 3BSE008572R1 features 24 terminals for connecting various field signals. The "Extended" version offers extra space for wire management and supports three-wire termination for each channel (signal, return, ground). It eliminates the need for external marshalling components, saving cabinet space. The unit includes mechanical keying for correct module insertion and supports hot-swapping of I/O modules, enabling maintenance without power or wiring disruption. Built for industrial durability, it ensures electrical safety and reliable operation.
Specifications
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Manufacturer: ABB
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Model Number: TU838 (3BSE008572R1)
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Product Type: Extended Module Termination Unit (MTU)
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Terminal Points: 24 Screw-type terminals
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Max Voltage Rating: 50 V DC
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Max Current Capacity: 2 A per terminal
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Wiring Range: 0.2 to 2.5 mm² (24-12 AWG)
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Mounting: Standard 35mm DIN Rail
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Interface: ModuleBus communication link
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Protection Class: IP20
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Weight: 0.47 kg
Features
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Three-Wire Interfacing: Optimized for complex field signals by providing dedicated terminals for power, signal, and common return on a single base.
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ModuleBus Connection: Provides the electrical backplane required for high-speed data exchange between the I/O module and the AC 800M controller.
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Safety Keying: Built-in mechanical coding ensures only the correctly rated I/O module can be seated, mitigating the risk of human error during installation.
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Hot-Swap Compatibility: Supports the replacement of active I/O modules during live operation to maximize system uptime and process continuity.
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EMI Rejection: Designed with grounding points to manage high-frequency interference, protecting the integrity of sensitive analog and digital signals.
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Vibration-Resistant Terminals: High-quality screw-clamp terminals ensure stable electrical contact in demanding industrial manufacturing environments.
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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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.