Product Overview
When managing industrial process signals, reliable power distribution is critical. The ABB TU805K01 provides a robust solution as a kit containing 10 TU805 terminal units. Each TU805 is a 16-channel, 50V terminal unit designed specifically for S800 I/O modules DI801 and DO801. This passive unit distributes external process power efficiently, supporting 2- and 3-wire connections without requiring extra space.
Technical Specifications Breakdown
The TU805K01 offers key specifications that ensure dependable performance in demanding environments:
- Channels and Voltage: Each terminal unit supports 16 channels at 50V, ideal for process signal distribution.
- Current Capacity: Maximum current per I/O channel is 1 A, providing ample power for connected devices.
- Wire Compatibility: Accepts solid and stranded wires from 0.2 to 1.5 mm² (24-16 AWG), offering flexibility in installation.
- Environmental Ratings: Operating temperature range from 0 to +55 °C (approvals for +5 to +55 °C) and storage from -40 to +70 °C. Protection class IP20 ensures basic dust and touch protection.
- Certifications: CE marked, with electrical safety per EN 61010-1 and UL 61010-1. Hazardous location approvals include C1 Div 2 cULus, C1 Zone 2 cULus, and ATEX Zone 2. Marine certification from DNV-GL adds versatility.
Industry Applications
The TU805K01 excels in process industries where reliable signal termination is essential. For example, in chemical plants, the ATEX Zone 2 certification allows safe use in potentially explosive atmospheres. In marine environments, DNV-GL certification ensures compliance with maritime standards. The 16-channel design simplifies wiring for distributed control systems, reducing installation time and potential errors.
Installation & Setup Guidance
Mounting the TU805 directly onto the I/O module requires no additional space, streamlining cabinet layouts. Use the process power terminals (2 x 2 for power, 2 x 16 for distribution) to connect field devices. Ensure wire sizes fall within the acceptable range (0.2-1.5 mm² solid or stranded) and tighten connections to avoid loosening from vibration. The terminal block connection type facilitates quick wiring changes.
Maintenance & Reliability
Regular inspection of terminal connections and environmental conditions extends service life. The TU805K01's passive design minimizes wear, but verify that ambient temperature stays below 55 °C and relative humidity remains between 5-95% non-condensing. Corrosion protection per ISA-S71.04: G3 ensures resilience in harsh atmospheres. Periodic checks of dielectric integrity (test voltage 500 V a.c.) help maintain safety.
Compatibility & Integration
This terminal unit is purpose-built for ABB S800 I/O modules DI801 and DO801. It integrates seamlessly into existing S800 systems, supporting 2- and 3-wire process connections. The passive nature means no additional power supply is needed for the terminal unit itself, simplifying system design.
Selection Guide & Purchasing Advice
Before ordering the TU805K01, verify that your system uses S800 I/O modules DI801 or DO801. The kit includes 10 units, ideal for larger installations or as a cost-effective spare parts package. Contact SpareTechPLC for current availability and lifecycle status, as this product may have limited stock. Ensure your application's environmental conditions align with the specified temperature, humidity, and hazardous location certifications.
Frequently Asked Questions
Q1: Can the TU805K01 be used with other S800 I/O modules besides DI801 and DO801?
A1: The TU805 is specifically designed for DI801 and DO801 modules. Using it with other modules may not provide proper connectivity or safety.
Q2: What is the maximum wire size that fits the TU805 terminal block?
A2: The terminal block accepts solid and stranded wires from 0.2 to 1.5 mm² (24-16 AWG).
Q3: Does the TU805K01 require external power for operation?
A3: No, the TU805 is a passive terminal unit. It distributes external process power but does not require its own power supply.
Q4: Is the TU805K01 suitable for use in hazardous areas?
A4: Yes, it carries ATEX Zone 2 and C1 Div 2 cULus approvals, making it suitable for certain hazardous locations.
Q5: How many terminal units are included in the TU805K01 kit?
A5: The kit contains 10 TU805 terminal units.
