ABB 1SDA050889R1 procurement and technical comparison
ABB 1SDA050889R1 is the representative purchasing reference for Tmax T1B molded-case circuit breakers. Start by checking the installed duty and full designation. A code grouped on this page may have a different rating or function and is not automatically interchangeable.
Verified technical parameters
| Technical item | Verified value / selection note |
|---|---|
| Complete designation | 1SDA050889R1 |
| Product family | Tmax T1B molded-case circuit breakers |
| Component role | T1B 100 A four-pole thermomagnetic breaker |
| Exact ABB order reference | 1SDA050889R1 |
| ABB product series | Tmax T1B molded-case circuit breakers |
| ABB series | Tmax T1B |
| Poles | 4 |
| Rated current | 100 A |
| Release | Thermomagnetic |
| Breaking class | 16 kA at 415 V AC in referenced ABB catalogue |
| Final configuration | Confirm exact nameplate, hardware revision and order options before purchase |
For ABB 1SDA050889R1, the table identifies facts supported by ABB technical material. Confirm all selectable ratings, approvals and order suffixes against the physical unit before release.
03 | Adjacent equipment
Map the upstream supply and the downstream equipment served by ABB 1SDA050889R1. Review connectors, terminals, panel access, protective earth and accessories as applicable.
ABB 1SDA050889R1 must fit the complete installation, not just one published nominal value. Ask the responsible engineer to resolve every interface discrepancy.
01 | What the item does
ABB 1SDA050889R1 is specified to protect and isolate a specified low-voltage feeder. Capture the asset tag and the actual connected circuit or process before asking for a quotation.
The operating role of ABB 1SDA050889R1 should be cross-checked with the drawing and functional description; appearance alone is not sufficient.
02 | Exact-match questions
Before ordering ABB 1SDA050889R1, compare four-pole wiring, trip release, short-circuit level and terminals. Preserve the whole designation, including spaces, suffixes and revision information.
When another ABB 1SDA050889R1 family code is offered, record every changed contact, voltage, mounting, communication or material condition.
04 | Commercial check
Request ABB 1SDA050889R1 with its complete part string, quantity, approved condition and required documentation. Ask the supplier to identify any supersession separately.
Keep the ABB 1SDA050889R1 quote, label image and manufacturer data together so the receiving team can compare like with like.
06 | Installation boundary
Service work on ABB 1SDA050889R1 requires the site's isolation, permit and qualification procedures. Record the prior wiring and settings before disturbing the old item.
Fit ABB 1SDA050889R1 only with the specified mounting hardware and accessories. Do not infer a safe connection from similar catalog photographs.
05 | Receipt and storage
Inspect ABB 1SDA050889R1 on arrival for marking, damaged terminals, broken seals and missing companions. Hold ambiguous stock until the engineering owner confirms it.
If ABB 1SDA050889R1 needs controlled storage, retain its protective packaging and follow the manufacturer's environmental instructions.
07 | Acceptance evidence
After fitting ABB 1SDA050889R1, test trip function and pole continuity. Test the full connected function through normal and fault-relevant states as the site procedure requires.
Document the ABB 1SDA050889R1 results, as-left configuration and reviewer; an untested replacement should not be released for service.
08 | Future replacement
Archive ABB 1SDA050889R1 with the drawing revision, manufacturer document and test record. This keeps later stock decisions tied to the actual installation.
Re-evaluate any future ABB 1SDA050889R1 variant against that record instead of assuming that a common series name guarantees compatibility.
Release checklist
Release ABB 1SDA050889R1 only after identity, application, fit and acceptance evidence agree.
Retain the ABB 1SDA050889R1 decision record for the next procurement and maintenance cycle.
