ABB | SACE TMAX T IEC MCCB
Product overview
The ABB T5N 400 PR221DS LS/I In=400A 4P F F is a 4P molded case circuit breaker for low-voltage distribution equipment. Electronic protection using the PR221DS LS/I trip unit; apply its documented settings and protection functions.
Technical selection summary
| Default complete type | T5N 400 PR221DS LS/I In=400A 4P F F |
|---|---|
| ABB ordering reference | 1SDA054325R1 |
| Frame rating | T5 400A |
| Rated current | 400A |
| Poles | 4P |
| Trip unit | PR221DS LS/I |
| Breaking capacity | 36 kA at 415V AC |
| Default installation | Fixed; Front terminals (F) |
| Standard | IEC 60947-2 |
The base-device parameters on this page match the exact title and ABB ordering reference. The selectors configure compatible installation parts and electrical accessories. The full selected type, base order code and separate accessory ordering references are recorded in the quote list.
This is a legacy Tmax T product. Availability and supply condition require verification for the exact ordering reference; no stock quantity or delivery time is stated here. A Tmax XT replacement requires an engineering check of protection, dimensions, terminals and accessories.
Accessories and installation
Select the supported mounting execution, operating mechanism, auxiliary-contact arrangement and release voltage. Required conversion parts, fixed parts and electrical connection accessories are separate ordering items where applicable. The selected order-code list specifies the required parts per device.
Typical applications
- Maintenance of existing low-voltage distribution equipment
- Replacement of the exact breaker configuration in existing switchboards
Specify your enquiry
For a focused quotation, include:
- Selected complete type, ABB ordering references and quantity
- System voltage, installation execution and terminal arrangement
- Accessory supply voltages and auxiliary-contact configuration
- Existing-device nameplate and installation photographs for replacement enquiries
ABB SACE Tmax T IEC complete catalogue (PDF)
Related products
Product reference images and drawings
Photographs are Tmax T family reference illustrations. The selected complete type and ABB ordering reference determine the actual configuration. The original catalogue pages below retain titles, illustrations, tables and footnotes.


