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TU846 3BSE022460R1

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ABB TU846 3BSE022460R1 is a passive PROFIBUS DP-V1 MTU for two CI840/CI840A interfaces and redundant I/O for the S800 I/O Communication Interfaces family.
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Technical specifications for TU846 3BSE022460R1

  • Manufacturer:
    ABB
  • Part Number:
    TU846 3BSE022460R1
  • Product Family:
    ABB Advant OCS and Advant-800xA
  • Product Type:
    CI840/CI840A Communication Termination Unit
  • Stock:
    1
  • Configuration:
    Dual CI840/CI840A with redundant I/O
  • Communication Protocol:
    PROFIBUS DP-V1
  • Line Redundancy:
    Yes
  • Module Redundancy:
    Yes
  • Hot Swap:
    No
  • Power Input:
    24 V DC (19.2-30 V)
  • PROFIBUS Connectors:
    Two DSUB9
  • Service Ports:
    Two RJ45
  • ModuleBus Connections:
    Two electrical paths
  • Station Address:
    Two rotary switches, 0-99
  • Optical ModuleBus Option:
    TB842 via TB846
  • Maximum ModuleBus Length:
    2.5 m to terminator
  • ModuleBus Distribution:
    Maximum 5 V 1.5 A and 24 V 1.5 A
  • Conductor Range:
    0.25-2.5 mm2 (24-14 AWG)
  • Recommended Torque:
    0.5-0.6 Nm
  • Stripping Length:
    6-7.5 mm
  • Rated Insulation Voltage:
    50 V
  • Dielectric Test:
    500 V AC
  • Mechanical Keying:
    Four keys; 36 configurations
  • Mounting:
    Vertical or horizontal DIN rail
  • Operating Temperature:
    0 to +55 C
  • Protection Rating:
    IP20
  • Product Dimensions:
    124 x 47 x 186 mm (W x D x H including latch)
  • Weight:
    0.5 kg
  • Tariff Code:
    85371098
  • Country of origin:
    Sweden
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications PROFIBUS Connections CI840 Redundancy Removal Planning

Features:

  • Dual CI840/CI840A base: TU846 hosts two redundant field communication interfaces.
  • Redundant I/O path: Two electrical ModuleBus connections support the documented arrangement.
  • No powered replacement: ABB requires power removal before TU846 replacement.

TU846 provides the passive power, PROFIBUS, service-port, addressing, and ModuleBus base for a redundant CI840/CI840A pair.

A TB842 optical ModuleBus port may connect through TB846, and the total ModuleBus length to the terminator is limited to 2.5 m.

Installation review must include left-side removal clearance, both station addresses, connector assignments, power isolation, and the redundant-I/O design.

Availability is subject to Apter Power's current inventory and sourcing confirmation.

Internal resources for TU846 3BSE022460R1:

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

ABB TU846 3BSE022460R1 CI840/CI840A Communication Termination Unit Specs

General

  • Manufacturer ABB
  • Model TU846 3BSE022460R1
  • Condition New Original ready stock
  • Product Family S800 I/O Communication Interfaces
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

Network connector review

  • DSUB9 ports: Confirm both PROFIBUS connections.
  • RJ45 service: Record both service-tool ports.
  • Address switches: Verify station addresses from 0 to 99.
  • Cable labels: Retain cable and port assignments.

Interface and ModuleBus matching

  • Interface pair: Match two CI840 or CI840A modules.
  • I/O role: Use the documented redundant-I/O arrangement.
  • ModuleBus paths: Confirm both electrical connections.
  • Optical option: Use TB842 through TB846 when specified.

Safe replacement checks

  • Power state: Do not replace TU846 with power applied.
  • Left clearance: Provide space on the left for removal.
  • Bus length: Keep the ModuleBus path to the terminator within 2.5 m.
  • Project record: Capture wiring and address settings before disconnection.
Description
The ABB TU846 3BSE022460R1 is a passive PROFIBUS DP-V1 MTU for two CI840/CI840A interfaces and redundant I/O in the ABB S800 I/O family.

TU846 3BSE022460R1 is documented with the following system role: It provides two PROFIBUS connectors, two service ports, two electrical ModuleBus paths, dual station-address switches, and a TB842 optical-port option via TB846.

Before ordering TU846 3BSE022460R1, confirm redundant I/O, CI840 or CI840A pairing, PROFIBUS wiring, TB846 accessory scope, station addresses, left-side clearance, and power isolation.
Alternative Names
TU8463BSE022460R1 TU846 3BSE022460R1 TU846-3BSE022460R1 ABB TU846 3BSE022460R1 ABB TU846 3BSE022460R1 S800 I/O TU846 TU846 CI840/CI840A MTU
Technical notes
ABB TU846 3BSE022460R1 serves dual CI840/CI840A and redundant I/O. ABB states that it cannot be replaced with power applied.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What is ABB TU846 3BSE022460R1 used for?
It is the passive base for two CI840/CI840A PROFIBUS DP-V1 interfaces and redundant S800 I/O.
Which connectors are present on TU846?
ABB lists two DSUB9 PROFIBUS connectors, two RJ45 service ports, two electrical ModuleBus connections, and the optical-port interface.
How does TU846 differ from TU847?
ABB assigns TU846 to redundant I/O and TU847 to single I/O. Verify the complete system architecture before ordering.
How is a TB842 optical ModuleBus port connected to TU846?
ABB states that TB842 can connect through TB846. Confirm the accessory and cable scope in the project drawing.
Can TU846 be removed while power is applied?
No. ABB explicitly states that TU846 cannot be replaced with power applied and requires left-side removal space.
What data helps verify a TU846 replacement?
Provide both CI labels, station addresses, PROFIBUS and ModuleBus drawings, TB846 use, power voltage, key settings, and cabinet clearance.
Where can I get TU846 documentation and a quote?
Open the verified PDF in Manuals, then send Apter Power the quantity, condition, destination, network layout, and required date.

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