ABB S800 I/O System TB846 Dual Modulebus Inlet Module 3BSE021439R1
The ABB TB846-3BSE021439R1 is a dual modulebus inlet module for ABB platforms. Model: TB846 | Product Type: Module_Termination_Unit | Catalog Description: Dual Modulebus inlet. Factory-sealed, live-rack tested, 48-hour burn-in. 12-month warranty. Ships within 24 hours.
Technical Specifications
| TB846 3BSE021439R1 | is a dual Modulebus inlet adaptor designed for redundancy in ABB control systems. It provides two male D‑sub connections and supports dual TK801 cables for reliable Modulebus extension. |
|---|---|
| Product ID | 3BSE021439R1 |
| Model | TB846 |
| Product Type | Module_Termination_Unit |
| Catalog Description | Dual Modulebus inlet |
| Function | Extension cable adaptor with two D‑sub male connectors |
| Redundancy | Supports two TK801 cables for redundant communication |
| Customs Tariff Number | 85369095 |
| HS Code | 853690 (Electrical connectors, ≤1000 V) |
| Net Weight | 0.18 kg |
| Country of Origin | Sweden |
| Battery Information | None (0 batteries) |
| SCIP Reference | 522cb6e9‑8a35‑4274‑aae6‑ec3e026b3d0a |
| Dual D‑sub Connectivity | Provides two male connectors for Modulebus extension |
| Redundant Cabling | Supports dual TK801 cables to ensure fault‑tolerant communication |
| Compact Design | Slim 43 mm width and lightweight 0.18 kg for easy installation |
| Industrial Reliability | Built for continuous operation in ABB automation environments |
| Seamless Integration | Designed for ABB Modulebus systems with redundancy requirements |
| Environmental Compliance | Meets RoHS and WEEE directives for sustainable deployment |
| Manufacturer | ABB |
| Model / SKU | TB846-3BSE021439R1 |
Ships within 24 hours | 12-Month Warranty | Worldwide Delivery
Why I/O Module Configuration Matters
The ABB TB846-3BSE021439R1 is an I/O module that handles signal conversion between field devices and the control system. What makes ordering a replacement tricky is that ABB uses configuration codes in their part numbers — the base model might be the same, but suffix codes can change the input voltage range, output type, channel count, isolation rating, or communication protocol. Two modules that look identical from the outside can behave completely differently when plugged into the chassis.
Before ordering, verify the full part number on your existing module label. Do not rely on memory or a handwritten note from the last maintenance shift. Take a clear photo and send it to us if you are unsure — our engineers can cross-reference the part number and confirm compatibility, usually within 4 business hours.
Every I/O module we ship is factory-sealed and functionally tested on a live ABB rack: all channels exercised with calibrated signal sources, communication verified, 48-hour burn-in at 55°C. Printed test report included. 12-month warranty. Worldwide shipping within 24 hours.
Compatible Parts — Same System
These modules share the same system family as the TB846-3BSE021439R1. Commonly ordered together for complete rack builds or spare parts kits.
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