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1SDA062943R1 ABB T7L 1250 PR332/P LSIG 1250 A 4-Pole MCCB
ABB 1SDA062943R1 is a SACE Tmax T7L 1250 A four-pole fixed moulded case circuit breaker with front terminals, lever operation and a PR332/P LSIG electronic trip unit providing overload, short-circuit and earth-fault protection.
£11,655.94
Why Choose the ABB T7L 1250 PR332/P LSIG 1SDA062943R1 Circuit Breaker?
The ABB 1SDA062943R1 is a high-performance SACE Tmax T7L 1250 moulded case circuit breaker (MCCB) designed for protection and switching in demanding low-voltage power distribution systems. This configuration combines a 1250 A rated current, four-pole construction and the advanced ABB PR332/P LSIG electronic trip unit for comprehensive overload, short-circuit and earth-fault protection.
As part of the ABB SACE Tmax T7 series, the T7L 1250 is engineered for high-current industrial and commercial installations requiring substantial fault-interruption capability. The L performance level provides high breaking capacity while the four-pole configuration enables protection and switching of three-phase systems incorporating a neutral conductor.
The 1SDA062943R1 is supplied as a four-pole fixed circuit breaker with front terminals and a lever operating mechanism. Its PR332/P LSIG solid-state release provides long-time overload, short-time delayed short-circuit, instantaneous short-circuit and earth-fault protection, supporting selective and coordinated protection throughout complex distribution networks.
Key Advantages
- High-performance ABB SACE Tmax T7L moulded case circuit breaker.
- 1250 A rated current for high-current power distribution.
- Four-pole construction for three-phase systems incorporating a neutral conductor.
- PR332/P LSIG electronic trip unit for comprehensive circuit protection.
- Integrated long-time, short-time, instantaneous and earth-fault protection functions.
- 500–1250 A adjustable overload protection range.
- Fixed configuration with front terminals and lever operation.
Key Features
- ABB SACE Tmax T7L 1250 series.
- 1250 A rated uninterrupted current (Iu).
- Four-pole (4P) construction.
- PR332/P LSIG solid-state electronic release.
- L: long-time overload protection.
- S: short-time delayed short-circuit protection.
- I: instantaneous short-circuit protection.
- G: earth-fault protection.
- 500–1250 A overload adjustment range.
- 750–12500 A short-time delayed short-circuit adjustment range.
- 1875–18750 A instantaneous short-circuit adjustment range.
- Rated operational voltage of 690 V AC.
- IP20 degree of protection.
Advanced LSIG Protection for 1250 A Distribution Systems
The ABB SACE Tmax T7 platform is designed for high-current low-voltage installations where reliable fault interruption and coordinated protection are essential. The T7L 1250 combines a 1250 A current rating with the high-breaking-capacity L performance level, making it suitable for main distribution, feeder and installation protection in demanding electrical systems.
The PR332/P LSIG electronic trip unit combines adjustable long-time overload, short-time delayed and instantaneous short-circuit protection with an integrated earth-fault protection function. Its overload range of 500–1250 A, short-time range of 750–12500 A and instantaneous range of 1875–18750 A provide substantial flexibility when coordinating protection across high-current distribution networks.
Typical Applications
- Industrial low-voltage power distribution systems.
- Four-pole main incomer and feeder protection.
- High-current electrical switchboards.
- Transformer, generator and installation protection.
- Manufacturing and process-industry electrical systems.
- Distribution systems requiring integrated earth-fault protection.
- Fixed switchgear requiring configurable electronic LSIG protection.
Technical Specifications
| Series | SACE Tmax T7 |
|---|---|
| ABB designation | T7L 1250 PR332/P LSIG In=1250A 4p F F |
| Order code | 1SDA062943R1 |
| GTIN / EAN | 8015644654924 |
| Product type | Moulded case circuit breaker (MCCB) |
| Frame | T7 |
| Performance level | L |
| Rated current (In) | 1250 A |
| Rated uninterrupted current (Iu) | 1250 A |
| Number of poles | 4 |
| Trip unit | PR332/P LSIG |
| Trip-unit technology | Solid-state electronic / microprocessor |
| Protection functions | Long-time, short-time, instantaneous and earth fault |
| Overload protection adjustment | 500–1250 A |
| Short-time delayed short-circuit adjustment | 750–12500 A |
| Instantaneous short-circuit adjustment | 1875–18750 A |
| Rated operational voltage | 690 V AC |
| Installation | Fixed |
| Terminal position | Front |
| Main-circuit connection | Bolted connection |
| Operating mechanism | Lever |
| Motor operator | Optional |
| Integrated motor operator | No |
| Degree of protection | IP20 |
| Power loss | 47 W |
| Net weight | 12.5 kg |
| ABB product group | 310511-T-Max T4 - T8 |
Frequently Asked Questions
What is the ABB 1SDA062943R1?
The ABB 1SDA062943R1 is a SACE Tmax T7L 1250 four-pole fixed moulded case circuit breaker rated at 1250 A, with front terminals, lever operation and a PR332/P LSIG electronic trip unit.
What protection functions does the PR332/P LSIG trip unit provide?
The PR332/P LSIG electronic trip unit provides long-time overload, short-time delayed short-circuit, instantaneous short-circuit and earth-fault protection.
What is the overload adjustment range of the ABB 1SDA062943R1?
The overload protection setting is adjustable from 500–1250 A, allowing the long-time protection characteristic to be matched to the requirements of the protected circuit.
What are the short-circuit protection ranges of the ABB 1SDA062943R1?
The short-time delayed short-circuit protection is adjustable from 750–12500 A, while the instantaneous short-circuit protection range is 1875–18750 A.
Is the ABB 1SDA062943R1 a four-pole fixed circuit breaker?
Yes. The 1SDA062943R1 is a four-pole fixed Tmax T7L circuit breaker with front terminals and lever operation, making it suitable for three-phase distribution systems incorporating a neutral conductor.
Trusted ABB Power Distribution Protection
ABB SACE Tmax T7 moulded case circuit breakers combine high-current capability, advanced electronic protection and robust fault-interruption performance for dependable protection and coordination in demanding industrial and commercial low-voltage distribution systems.
