TU818 application and acceptance notes
TU818 is the complete reference for this S800 compact module termination unit. Use the exact code, not only the family name, when reviewing a replacement or preparing an enquiry. The final site decision depends on the installed circuit and the marked hardware revision.
Technical identification
| Technical item | Verified value / selection note |
|---|---|
| Complete designation | TU818 |
| Product family | TU818 |
| Component role | S800 compact module termination unit |
| Terminal unit | Compact MTU, 50 V isolation class |
| Signals | 1 x 32 or 2 x 16 signal terminals |
| Order code | 3BSE069209R1 |
| Final configuration | Confirm exact nameplate, hardware revision and order options before purchase |
These TU818 details establish the selection baseline. Check the unit label and current ABB documentation for any option or approval that is not explicit in the technical table.
What must match?
The critical TU818 comparison is: Check module pairing, signal grouping, terminal layout, supply paths and cabinet clearances. Confirm each difference with the supplier and the site engineer before approving it.
Document the terminal arrangement, supply, protective coordination or communications mapping relevant to TU818. An alternative code can require a changed parameter set, mounting layout or approval.
Duty at this site
For TU818, the expected duty is: Terminate the required field conductors for a compatible S800 I/O module. Identify the source, the connected equipment and the permissive or alarm logic before ordering.
A useful handover record for TU818 includes the drawing reference, ambient condition and the operating duty. This helps distinguish a genuine equivalent from a merely similar-looking device.
What proves it works?
For TU818, the acceptance action is: Verify labeled conductors, module seating and every required field channel after reassembly. Record the actual observed result, not only the power-on indication.
Retain a signed record of the TU818 test together with faults, corrections and the final nameplate information for later maintenance and procurement.
Before energizing
Inspect TU818 and its connected wiring under the approved isolation procedure. Compare the delivered code with the order, then check mechanical seating, terminals and required accessories.
Restore only reviewed settings for TU818. If the original assembly contains safety or protection functions, follow the plant's dedicated validation plan before operating the load.
Codes grouped with this model
Other TU818 codes are listed here for search and procurement reference. Their suffixes may change the coil, ratings, channel layout, interfaces or accessories, so they are not declared interchangeable with TU818.
- 3BSE069209R1 TU818
- TU818 3BSE069209R1
For the purchase enquiry
State the full TU818 code, installed machine or panel, quantity, required condition and delivery destination. Ask for a matching datasheet and the supplied hardware revision.
If TU818 is offered as a substitute or updated spare, request a written cross-reference covering mechanical fit, wiring, ratings and required project changes before approval.
