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TU842 3BSE020850R1

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ABB TU842 3BSE020850R1 is a horizontal 16-channel, 50 V redundant terminal-block MTU for selected S800 I/O modules for the S800 I/O Module Termination Units family.
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Technical specifications for TU842 3BSE020850R1

  • Manufacturer:
    ABB
  • Part Number:
    TU842 3BSE020850R1
  • Product Family:
    ABB Advant OCS and Advant-800xA
  • Product Type:
    Redundant Module Termination Unit
  • Stock:
    1
  • MTU Type:
    Redundant
  • Termination Interface:
    Terminal block
  • I/O Channels:
    16
  • Rated Signal Voltage:
    50 V
  • I/O Arrangement:
    Redundant
  • Mounting:
    Horizontal DIN rail
  • Compatible I/O Modules:
    AI843, AO845, AO845A, DI840, DI880, DO840, DO880, DP840
  • Process Connections:
    56; 32 channel, 4 process-power, 20 zero-volt
  • Maximum Channel Current:
    3 A
  • Maximum Process Current:
    10 A
  • Conductor Range:
    Solid 0.2-4 mm2; stranded 0.2-2.5 mm2 (24-12 AWG)
  • Recommended Torque:
    0.5-0.6 Nm
  • Stripping Length:
    7 mm
  • Dielectric Test:
    500 V AC
  • Mechanical Keying:
    Four keys; 36 configurations
  • Operating Temperature:
    0 to +55 C
  • Storage Temperature:
    -40 to +70 C
  • Relative Humidity:
    5-95%, non-condensing
  • Protection Rating:
    IP20
  • Corrosion Protection:
    ISA-S71.04 G3
  • Product Dimensions:
    131 mm including connector; 124 mm installed; 64 mm deep; 186.5 mm high
  • Weight:
    0.66 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 Horizontal MTU Layout Redundant I/O Matching Terminal Review

Features:

  • Horizontal redundant MTU: TU842 mounts horizontally and supports two ModuleBus paths.
  • Sixteen channels: The 56-position layout includes field-signal and power terminals.
  • Official module scope: ABB lists eight compatible analog, digital, and pulse I/O models.

TU842 provides redundant field termination for selected 50 V S800 I/O modules in a horizontal rail arrangement.

Its terminal plan separates channel connections, process power, and 0 V distribution, so the installed wiring schedule is essential.

Procurement review should match TU842 and 3BSE020850R1 with the module label, horizontal cabinet layout, mechanical keys, and load calculation.

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

Internal resources for TU842 3BSE020850R1:

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 TU842 3BSE020850R1 Redundant Module Termination Unit Specs

General

  • Manufacturer ABB
  • Model TU842 3BSE020850R1
  • Condition New Original ready stock
  • Product Family S800 I/O Module Termination Units
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.

Horizontal mounting checks

  • Orientation: Use the documented horizontal rail mounting.
  • Connector width: Allow for the 131 mm connector envelope.
  • Terminal access: Keep field wiring accessible for inspection.
  • Key positions: Record all four mechanical keys.

Approved module review

  • Analog inputs: ABB lists AI843.
  • Analog outputs: ABB lists AO845 and AO845A.
  • Digital modules: Check DI840, DI880, DO840, or DO880 exactly.
  • Pulse module: ABB lists DP840.

Load and conductor planning

  • Connection count: Map all 56 process connections.
  • Channel limit: Observe 3 A per channel.
  • Process limit: Keep total process connection current within 10 A.
  • Wire preparation: Use the official range, torque, and 7 mm strip length.
Description
The ABB TU842 3BSE020850R1 is a horizontal 16-channel, 50 V redundant terminal-block MTU for selected S800 I/O modules in the ABB S800 I/O family.

TU842 3BSE020850R1 is documented with the following system role: Its 56 connections provide two terminals per channel, four process-power terminals, twenty 0 V terminals, and two ModuleBus paths.

Before ordering TU842 3BSE020850R1, verify horizontal mounting, the approved I/O module, terminal schedule, 10 A process limit, mechanical keys, and complete article number.
Alternative Names
TU8423BSE020850R1 TU842 3BSE020850R1 TU842-3BSE020850R1 ABB TU842 3BSE020850R1 ABB TU842 3BSE020850R1 S800 I/O TU842 TU842 Redundant MTU
Technical notes
ABB TU842 3BSE020850R1 is the horizontal redundant 16-channel, 50 V MTU. Match the official I/O list and 56-point terminal plan.
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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 TU842 3BSE020850R1 used for?
It provides horizontal redundant field termination for selected 16-channel, 50 V S800 I/O modules.
Which I/O modules are listed for TU842?
ABB lists AI843, AO845, AO845A, DI840, DI880, DO840, DO880, and DP840. Match the installed module exactly.
Why is TU842 mounting orientation important?
ABB specifies horizontal mounting. Confirm rail orientation, connector clearance, field wiring, and the cabinet thermal design.
How should TU842 load capacity be checked?
Use 3 A maximum per channel and 10 A maximum for the process connection, while also checking the installed I/O module limits.
What wiring data is required for a TU842 replacement?
Record all terminal numbers, conductor sizes, 0 V groups, process-power feeds, 0.5-0.6 Nm torque, and 7 mm strip length.
Can TU842 be substituted based only on a similar enclosure?
No substitution is stated. Confirm the complete article number, redundant arrangement, I/O module, voltage class, orientation, and keying.
Where can I obtain the TU842 datasheet and a quote?
Open the verified Manuals PDF and send Apter Power the quantity, condition, destination, module type, and required date.

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