Product details
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Service & Policy

ABB S800 I/O · TERMINATION

TU843 3BSE021443R1 Redundant Module Termination Unit

Vertical redundant MTU providing field termination and dual ModuleBus distribution for compatible S800 I/O.

PRODUCT ROLE

Redundant 16-channel MTU

Provides keyed module mounting, field terminals, process-power connections and redundant ModuleBus routing.

Product overviewMatch the article number, mechanical keys, supported I/O module and terminal map before installation.

CONDITION

New Original

WARRANTY

One year

DIRECT CALL

+86 17359287459

sales9@apterpower.com

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02 / DIAGNOSTICS & APPLICATION PLANNING

Diagnostics & Protection

TERMINAL REVIEW

Inspect process terminals, power distribution and grounding for looseness, damage or contamination.

MODULEBUS CHECK

Record controller status for both ModuleBus paths before disturbing the installed MTU.

KEYING CONTROL

Verify all mechanical-key positions and the supported I/O module before insertion.

Application Scenarios

REDUNDANT S800 I/O

Terminate documented field signals for compatible redundant I/O module arrangements.

CABINET ASSEMBLY

Mount vertically on DIN rail while preserving grounding and locking-device engagement.

PLANNED CHANGEOVER

Transfer wires one identified terminal at a time and validate channel mapping before startup.

Technical data

ARTICLE NUMBER 3BSE021443R1	TYPE Redundant MTU	CHANNELS Up to 16
RATED VOLTAGE 50 V	CHANNEL CURRENT 3 A maximum	PROCESS CONNECTIONS 56
MOUNTING Vertical DIN rail	MODULEBUS Two paths	SUPPORTED I/O AI843 / AO845 / DI840 / DO840

Technical values apply to the exact documented execution. Verify the installed order number and network arrangement before recommissioning.

03 / BRAND & APPLICATIONS

Brand characteristics

Modular termination	ABB S800 MTUs separate field wiring from replaceable I/O electronics.
Redundant architecture	Dual ModuleBus routing supports defined high-availability I/O arrangements.
Mechanical protection	Keying reduces the risk of installing an incompatible I/O module.
Cabinet efficiency	Integrated process-power distribution organizes dense field termination.

Application fields

Process control	Redundant signal termination for continuous production assets.
Power generation	High-availability auxiliary and balance-of-plant I/O.
Oil and gas	Field termination for critical process skids and units.
Water infrastructure	Centralized cabinet termination for distributed instruments.

Product references

ABB

PM866AK01	PM864AK01	CI854AK01	CI867K01
AI810	AI815	AO810V2	AO820
DI810	DI811	DO810	DO814
TU810V1	TU811V1	TU812V1	TU813
TU814V1	TU830V1	TU831V1	TU839

Bachmann

MX213	MX220	MC210	MC212
DI232	DO232	AI204	AI208
AO202	DIO248	NT255	FS212
PTAI216	AIO288	CNT204	RS204
EM213	MIO106	MPC270	SCT202

04 / SERVICE & POLICY

Quote	Disclaimer
IDENTIFY Provide TU843 and 3BSE021443R1, required quantity and clear photographs of the label, keys and terminals.	INDEPENDENT SUPPLY This website is not affiliated with, endorsed by, or authorized by any of the listed manufacturers or trademarks. Ewolomodule is not an authorized distributor, dealer, or representative of the products displayed on this website.
VERIFY Confirm supported I/O module, vertical DIN-rail position, mechanical-key settings, terminal map and process power before replacement.	TRADEMARK OWNERSHIP All product names, trademarks, brands, and logos used on this website are the property of their respective owners.
QUOTE & DELIVERY State destination and required date. Availability, condition, warranty, protective packing and lead time will be checked.	IDENTIFICATION PURPOSE The description, explanation, or sale of products with these names, trademarks, brands, and logos is for identification purposes only and is not intended to indicate any association with or authorization from any rights holder.

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Disclaimer: Ewolomodule sells new and surplus products and develops channels for purchasing such products. This website has not been approved or recognized by any of the listed manufacturers or trademarks. Ewolomodule is not an authorized distributor, dealer, or representative of the products displayed on this website. All product names, trademarks, brands, and logos used on this website are the property of their respective owners. The description, explanation, or sale of products with these names, trademarks, brands, and logos is for identification purposes only and is not intended to indicate any association with or authorization from any rights holder.

ABB TU843 3BSE021443R1 Redundant Module Termination Unit

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