ABB

ABB TB845 3BSE021437R1 S800 I/O Redundant ModuleBus Cable Adaptor

SKU TB845 3BSE021437R1

In stock
  • 12-month warranty
  • Free returns within 30 days

  • Manufacturer: ABB

  • Product No.: TB845 3BSE021437R1

  • Country of origin:Sweden

  • Product Type: Redundant ModuleBus Cable Adaptor

  • Barcode: 85369095

  • Payment: T/T, Western Union

  • Weight: 180g

  • Dimensions: 186 mm x 43 mm x 31.5 mm (H x W x D)

  • Shipping port: Xiamen

  • Warranty: 12 months

Description

The ABB TB845 (Product ID: 3BSE021437R1) is a redundant ModuleBus cable adaptor designed for the S800 I/O system within the ABB Ability System 800xA platform. The device is used in combination with the TB846 adaptor and two TK801V0xx cables to extend the electrical ModuleBus, enabling S800 I/O modules operating on the same electrical ModuleBus to be mounted across separate DIN rails.

Features

  • Enables extension of the electrical ModuleBus across multiple DIN rails
  • Designed for redundant ModuleBus configurations in S800 I/O stations
  • Works in combination with TB846 adaptors and TK801V0xx extension cables
  • Compact form factor for standard DIN rail mounting environments

Applications

  • Distributed control system (DCS) extension in ABB Ability System 800xA installations
  • Cabinet expansion for S800 I/O cluster arrangements across multiple DIN rails
  • Redundant ModuleBus communication links in process automation architectures

Technical Specifications

Parameter Specification
Manufacturer ABB
Model TB845
Product ID 3BSE021437R1
System Mechanics S800
Operating Temperature 0 to +55 degC
Storage Temperature -25 to +70 degC
Relative Humidity 5 to 95% non-condensing
Pollution Degree Degree 2 (IEC 60664-1)
Corrosion Protection ISA-S71.04: G3
Protection Class IP20 (IEC 60529)
Equipment Class Class I (IEC 61140, earth protected)
Dimensions (Width x Depth x Height) 43 mm x 31.5 mm x 186 mm
Weight 180 g

Installation Guidelines

  • DIN Rail Mounting: Install the unit within an IP20-rated enclosure on standard DIN rails alongside S800 I/O mechanics.
  • Cable Routing: Interconnect the module using specified TK801V0xx extension cables and partner TB846 adaptors to establish proper electrical ModuleBus extension links.
  • Grounding: Ensure the equipment is properly earth protected in accordance with Class I (IEC 61140) requirements.
  • Environmental Limits: Maintain operating ambient temperatures between 0 and +55 degC with relative humidity non-condensing between 5 and 95%.

Compliance and Certifications

  • CE Mark: Yes
  • Electrical Safety: IEC 61131-2, UL 61010-1, UL 61010-2-201
  • Hazardous Location: C1 Div 2 cULus, C1 Zone 2 cULus, ATEX Zone 2
  • Marine Certification: ABS, BV, DNV, LR
  • EMC: EN 61000-6-4, EN 61000-6-2
  • RoHS Compliance: EU ROHS, UAE ROHS, CN ROHS
  • WEEE Compliance: DIRECTIVE/201219/EU

FAQ

What is the ABB TB845 3BSE021437R1 used for?
The ABB TB845 3BSE021437R1 is a redundant ModuleBus cable adaptor used to extend the electrical ModuleBus in S800 I/O systems, allowing I/O modules to be mounted across different DIN rails.

Which components are required to extend the ModuleBus using the module?
The adaptor is used together with a TB846 adaptor and two TK801V0xx cables to extend the electrical ModuleBus.

What operating environment conditions apply to the device?
The module operates in temperatures ranging from 0 to +55 degC with a non-condensing relative humidity of 5 to 95% and carries an IP20 protection rating.

Which hazardous location certifications does the module hold?
The device is certified for Class 1 Division 2 cULus, Class 1 Zone 2 cULus, and ATEX Zone 2 hazardous locations.

View all FAQs →

Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

Technical Datasheet

ABB TB845 3BSE021437R1 S800 I/O Redundant ModuleBus Cable Adaptor

Download Open in new tab
TB845 3BSE021437R1
Quantity
Call sales Contact
Shipping & Returns

Global Express Shipping

  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
Reviews

More from this brand

ABB 1SAP131000R0278 PM5630-2ETH AC500 Processor Module
1SAP131000R0278 PM5630-2ETHABB 1SAP131000R0278 PM5630-2ETH AC500 Processor Module
ABB DSQC 351 3HNE 00006-1 DeviceNet/Interbus Gateway Module
DSQC351 3HNE00006-1ABB DSQC 351 3HNE 00006-1 DeviceNet/Interbus Gateway Module
ABB 3BSE008544R2 AI820-eA S800 I/O Analog Input Module
3BSE008544R2 AI820-eAABB 3BSE008544R2 AI820-eA S800 I/O Analog Input Module
ABB 8VZZ000167H1 DO05 16CH Digital Output w/Relay I/O Module
8VZZ000167H1 DO05ABB 8VZZ000167H1 DO05 16CH Digital Output w/Relay I/O Module
  • TB845 3BSE021437R1
1 1
Only 10 item(s) left in stock
View full details
Product Description
Shipping Returns
Additional details
Reviews

Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
Sweden

Technical knowledge

VFD line reactor and output filter selection for industrial motor drives

Selecting Line Reactors and Output Filters for VFDs

Learn how line reactors, harmonic filters, output reactors, dV/dt filters, and sine filters address different VFD power-quality and motor-cable problems—and how to select them safely.

Photoelectric sensor configured for light-on and dark-on switching logic

Light-On and Dark-On Photoelectric Sensor Logic

Learn how light-on and dark-on photoelectric sensor modes interact with through-beam, retroreflective, and diffuse sensing, PNP/NPN wiring, PLC logic, commissioning, and fault detection.

H-bridge power stage for bidirectional industrial DC motor control

Designing H-Bridge Motor Drives Without Shoot-Through

A practical guide to H-bridge motor drives covering switching states, dead time, inductive current paths, PWM choices, protection, PCB layout, PLC interfacing, and staged commissioning tests.

Conveyor and pneumatic pusher sequence controlled by a Mitsubishi FX PLC

Designing Mitsubishi FX PLC Sequences with STL and RET

Learn how Mitsubishi FX PLC STL and RET instructions structure conveyor and pneumatic sequences, with practical state design, transition logic, timeouts, diagnostics, and safe restart boundaries.

DIN valve connector fitted to an industrial solenoid coil

Selecting and Troubleshooting DIN Valve Connectors

A practical guide to selecting, wiring and diagnosing DIN-style valve connectors, including form identification, coil voltage, suppression, polarity, sealing, release-time effects and commissioning...

Microstep drive pulse and direction wiring for welding motion

PLC or Microcontroller for Arc-Welding Motion Control?

A PLC and a microcontroller can both generate step-and-direction motion, but arc welding exposes major differences in EMC, I/O protection, diagnostics, maintainability, safety integration, and...