ABB TB846 3BSE021439R1 System 800xA S800 Redundant ModuleBus Adapter
Manufacturer: ABB
-
Part Number: TB846
Condition：New with Original Package
Product Type: ModuleBus Adapters
-
Country of Origin: Sweden
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
ABB TB846 Redundant ModuleBus Cable Adapter
The ABB TB846 (Part Number: 3BSE021439R1) is a redundant ModuleBus cable adapter built for the ABB S800 I/O system within the System 800xA automation platform. It extends the ModuleBus line across separate DIN rails, allowing distributed I/O modules on the same logical bus section to be physically dispersed within the control cabinet while maintaining communication redundancy.
Communication Extension and Architecture
The TB846 adapter establishes redundant bus extensions in electrical or optical configurations. When paired with a TB845 adapter and two TK801V0xx interconnecting cables, it provides dual electrical ModuleBus links to prevent single-point communication failures. Alternatively, it integrates with a TB842 adapter to enable optical ModuleBus extension, extending signal reach and offering isolation for sensitive signal lines.
Environmental and Compliance Specifications
Designed for industrial enclosure installation, the unit carries an IP20 protection rating and operates in Class 2 pollution environments. It functions within an operating temperature range of 0 deg C to +55 deg C and withstands relative humidity levels from 5% to 95% (non-condensing). The module complies with IEC 61131-2 and UL 61010-1 standards for programmable controllers and industrial control equipment.
| Parameter | Specification |
|---|---|
| Model | TB846 |
| Brand | ABB |
| Part Number | 3BSE021439R1 |
| Product Type | Redundant ModuleBus Cable Adapter |
| System Compatibility | ABB S800 I/O, System 800xA |
| Operating Temperature | 0 deg C to +55 deg C |
| Storage Temperature | -25 deg C to +70 deg C |
| Relative Humidity | 5% to 95% (non-condensing) |
| Pollution Degree | Class 2 |
| Protection Class | IP20 |
| Certifications | IEC 61131-2, UL 61010-1 |
| Country of Origin | Sweden |
Frequently Asked Questions
Q: How does the ABB TB846 extend the ModuleBus across different DIN rails? A: It connects via two TK801V0xx cable assemblies to a TB845 adapter to extend electrical ModuleBus communication across separated mounting rails.
Q: Can the TB846 be used for optical ModuleBus extension? A: Yes, it can be combined with a TB842 adapter to configure an optical ModuleBus extension link.