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1SDA054077R1 ABB T4L 250A PR222DS/P-LSI 3P Fixed Circuit Breaker
ABB 1SDA054077R1 is a three-pole 250 A SACE Tmax T4L moulded case circuit breaker with a PR222DS/P electronic trip unit providing LSI overcurrent protection in a fixed front-terminal configuration.
£3,275.28
Why Choose the ABB 1SDA054077R1 T4L 250A PR222DS/P-LSI Circuit Breaker?
The ABB 1SDA054077R1 is a SACE Tmax T4L moulded case circuit breaker designed for reliable protection and switching in industrial and commercial low-voltage distribution systems. ABB identifies this configuration as T4L 3P 250A PR222DS/P-LSI In=250 3p F F, combining a T4L frame with a 250 A rated current and three-pole construction.
The breaker incorporates an ABB PR222DS/P-LSI electronic trip unit, providing long-time, short-time and instantaneous overcurrent protection. This electronic protection platform supports dependable circuit protection where accurate response to overload and short-circuit conditions is required.
Configured as a fixed breaker with front terminals, the 1SDA054077R1 is suited to integration into switchboards, distribution panels and OEM equipment. Its T4L performance level, electronic LSI protection and 250 A current rating make it a capable solution for demanding feeder and distribution applications.
Key Advantages
- 250 A rated current for substantial low-voltage distribution loads.
- PR222DS/P-LSI electronic trip unit for comprehensive overcurrent protection.
- LSI functions provide long-time, short-time and instantaneous protection.
- Three-pole configuration for three-phase electrical systems.
- Fixed breaker execution for permanent switchboard installations.
- Front terminals provide a practical main-circuit connection arrangement.
- Part of ABB's established SACE Tmax T4 moulded case circuit-breaker platform.
Key Features
- SACE Tmax T4L moulded case circuit breaker.
- Rated current of 250 A.
- 3-pole construction.
- PR222DS/P electronic trip unit.
- LSI protection functions.
- Fixed breaker installation.
- Front main-circuit terminals.
- Designed for low-voltage circuit protection and isolation.
- Original ABB order code 1SDA054077R1.
Electronic LSI Protection for Low-Voltage Distribution
The PR222DS/P-LSI trip unit provides electronic monitoring of current and protection against the principal overcurrent conditions encountered in low-voltage distribution systems. Long-time protection responds to sustained overloads, short-time protection addresses high-current faults with controlled timing, and instantaneous protection provides rapid response to severe short-circuit conditions.
Combining these protection functions with the ABB Tmax T4L platform makes the 1SDA054077R1 suitable for protecting feeders, distribution circuits and industrial loads. Its fixed three-pole construction and front connections also support straightforward integration into conventional switchboard designs.
Typical Applications
- Industrial low-voltage distribution systems.
- Main and sub-distribution switchboards.
- Three-phase feeder protection.
- Commercial building electrical distribution.
- Machinery and industrial control panels.
- OEM switchgear and power distribution assemblies.
Technical Specifications
| Product family | SACE Tmax |
|---|---|
| Frame | T4 |
| Performance level | T4L |
| ABB order code | 1SDA054077R1 |
| Product type | Moulded case circuit breaker (MCCB) |
| Rated current (In) | 250 A |
| Number of poles | 3 |
| Trip unit | PR222DS/P |
| Protection functions | LSI |
| Long-time protection (L) | Yes |
| Short-time protection (S) | Yes |
| Instantaneous protection (I) | Yes |
| Installation | Fixed |
| Terminal arrangement | Front |
| Product group | 310511-T-Max T4 - T8 |
Frequently Asked Questions
What is the rated current of the ABB 1SDA054077R1?
The ABB 1SDA054077R1 has a rated current of 250 A.
Which trip unit is fitted to the ABB 1SDA054077R1?
This T4L circuit breaker is equipped with an ABB PR222DS/P electronic trip unit.
What protection functions does the ABB 1SDA054077R1 provide?
The breaker provides LSI protection: long-time overload protection (L), short-time short-circuit protection (S) and instantaneous short-circuit protection (I).
How many poles does the ABB 1SDA054077R1 have?
The 1SDA054077R1 is a three-pole circuit breaker intended for suitable three-phase low-voltage systems.
Is the ABB 1SDA054077R1 a fixed or withdrawable breaker?
The ABB designation specifies this T4L as a fixed circuit breaker with a front terminal arrangement.
Trusted ABB Low-Voltage Circuit Protection
ABB SACE Tmax moulded case circuit breakers combine compact construction, dependable switching and coordinated electronic protection for professional low-voltage power distribution and industrial switchgear applications.
