Overview
The ABB TU846 is a passive termination unit (MTU) designed as the mechanical and electrical base for S800 I/O modules. It provides secure wiring interfaces for ModuleBus communication, 24 V power distribution, and field signal connections in non-redundant configurations.
The TU846 includes mechanical keying to prevent incorrect module insertion, a rotary address switch for cluster configuration, and dedicated connectors to simplify system integration. As a result, it is widely used across the process, power generation, water treatment, and manufacturing sectors where reliable and service-friendly I/O mounting is essential.
Technical Data
| Specification | Description |
|---|---|
| Product Type | Termination Unit Base TU846 |
| Dimensions | 124 × 186 × 47 mm |
| Weight | 0.45 kg |
Typical Applications
-
Process industries: Base for analog/digital I/O modules in chemical, petrochemical, and pharmaceutical plants.
-
Power generation: Provides reliable mounting and wiring for turbine and boiler instrument I/O.
-
Water treatment: Supports pumps, mixers, and plant monitoring systems.
-
Manufacturing automation: Ensures stable communication for production line control modules.
-
Infrastructure systems: Used in building automation, HVAC, and utility monitoring networks.
Example: In a paper mill, the TU846 mounts the plant’s analog input modules, ensuring stable wiring and simplifying maintenance during instrument calibration or replacement.
FAQ
Q1: Is the TU846 an active module?
A1: No. It is a passive termination unit (MTU).
Q2: What is the difference between TU846 and TU847?
-
TU846: For non-redundant I/O
-
TU847: For redundant I/O configurations
Q3: How is the cluster address set?
A3: Using the built-in rotary address switch (1–7).
Q4: What accessories are included?
A4: A power supply connector and TB807 ModuleBus terminator.
Q5: How is the TU846 installed?
A5: It is DIN-rail mounted using a mechanical locking latch.
| Quick Quotes | Receive price & availability FAST from our dedicated customer service team. |
|---|---|
| Delivery | Expedited, Freight, And International Shipping Available. |
| Condition | 100% New with Original Package |
| Payment | We accept American Express, Discover, MasterCard, PayPal, and Visa. Our site is secured by RapidSSL. |
| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
| Q: Is Our Pricing Competitive? |
| A: Yes, we collaborate with over 50 countries worldwide. As a top supplier in China, we offer significant discounts based on market trends. |
| Q: What Is the Warranty Period? |
| A: All our new and original products come with a standard one-year warranty. |
| Q: What Payment Methods Do We Accept? |
| A: We require 100% T/T (Telegraphic Transfer) payment before shipping. For items with a lead time, a 30% deposit is needed upfront, and the remaining 70% is due before shipping. If you have a representative in China, you can arrange an RMB transfer through them. |
| Q: What Shipping Methods Do We Use? |
| A: We primarily use FedEx, DHL, UPS, and BRE for shipping. If you have an account with any of these carriers, you can handle shipping directly. We also offer free shipping to China-based freight forwarders. |
| Q: What Is Our Delivery Time? |
| A: Delivery usually takes 1-3 days after receiving the initial payment. For items with a lead time, shipping will occur according to the specified schedule. |
| Q: How Do We Package the Goods? |
| A: We ensure safe packaging with multiple layers of protection. Products are first placed in their original boxes and sealed with labels. A layer of bubble wrap is then added for collision protection during transit. Finally, the items are packed securely in durable boxes. |
| Q: How Can Customers Contact Us and Request a Quote? |
| A: You can reach out to us via email, WhatsApp, WeChat, Skype, or your preferred communication platform. Contact us with your needs, and we'll provide a prompt, customized quote. |
Recently Viewed
Express Shipping
Extensive Inventory
Quality Assurance
