ABB TU844 is an S800 I/O Redundant Module Termination Unit rated for 50 V applications. ABB identifies article number 3BSE021445R1 and specifies use with redundant I/O, horizontal DIN rail mounting and no included shunt sticks. The MTU provides a defined termination base for compatible redundant I/O arrangements. Before replacement, compare the complete TU844 label, article number, connected I/O module, shunt requirements, mounting orientation and cabinet documentation. Original new condition, In stock availability, worldwide shipping and a one-year warranty are Stockoems commercial terms.
ABB catalog identifies TU844 as a 50 V Redundant Module Termination Unit for redundant I/O with horizontal DIN rail mounting. Shunt sticks are not included. Article number: 3BSE021445R1.
Condition, availability and warranty are Stockoems commercial terms and are not ABB manufacturer commitments.
Capture TU844, article number 3BSE021445R1 and every visible marking.
Record the installed architecture, connected modules and field wiring.
Compare drawings, maintenance records and terminal assignment.
Approve only an exact, documented identity match.
Match TU844 and article number 3BSE021445R1 against the product label, redundant I/O arrangement, shunt requirements, mounting orientation and cabinet drawings before replacement.
ABB TU844 is a 50 V S800 I/O Redundant Module Termination Unit for horizontal DIN rail mounting.
No equivalence is assumed. The complete label, installed I/O module and field wiring must be compared.
Only configuration details explicitly stated for TU844 in the ABB catalog are included.
The ABB catalog used for this page does not state a lifecycle label for TU844, so no lifecycle claim is displayed.
Provide the complete label photos, quantity, destination, installed module details and terminal documentation.
Send us the complete part number, required quantity, destination country and product label photos. Our team will check availability, condition, compatibility requirements and shipping options.
Email: sales6@apterpower.com
WhatsApp: +86 18159889985
Office-based coordination for identity evidence, compatibility screening, quality records, logistics documents and written after-sales communication.
Exact inventory quantities and delivery timing are supplied only after order-specific review.
Look for exact suffix control, clear condition wording, label evidence, written warranty terms and a documented return route.
Request product-label photos, condition confirmation, packaging information, shipping documents and a named after-sales contact.
Verify the complete marking, installed S800 I/O module, terminal assignment, wiring and cabinet documentation.
Changed suffixes, generic photos, copied specifications, unsupported lifecycle claims, unrealistic delivery promises and missing written terms are warning signs.
Share the complete part number, quantity, destination and product label photos for a structured procurement review.
Email: sales6@apterpower.com
WhatsApp: +86 18159889985
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Email: sales6@apterpower.com
WhatsApp: +86 18159889985
