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1SDA062944R1 ABB T7L 1250 PR332/P LSIRc 1250 A 4-Pole MCCB
ABB 1SDA062944R1 is a SACE Tmax T7L 1250 A four-pole fixed moulded case circuit breaker with front terminals, lever operation, PR332/P LSIRc electronic protection and 120 kA ultimate short-circuit breaking capacity at 380–415 V AC.
£11,722.88
Why Choose the ABB T7L 1250 PR332/P LSIRc 1SDA062944R1 Circuit Breaker?
The ABB 1SDA062944R1 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 LSIRc electronic trip unit for overload, short-circuit and residual-current 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 a rated ultimate short-circuit breaking capacity of 120 kA at 380–415 V AC, with rated operation supported on low-voltage systems up to 690 V AC.
The 1SDA062944R1 is supplied as a four-pole fixed circuit breaker with front terminals and a lever operating mechanism. Its PR332/P LSIRc solid-state release combines long-time overload, short-time delayed and instantaneous short-circuit protection with residual-current protection, providing comprehensive protection for high-current 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.
- 120 kA ultimate short-circuit breaking capacity at 380–415 V AC.
- PR332/P LSIRc electronic trip unit with integrated residual-current protection.
- 500–1250 A adjustable overload release for application flexibility.
- Fixed construction 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 LSIRc solid-state electronic release.
- L: long-time overload protection.
- S: short-time delayed short-circuit protection.
- I: instantaneous short-circuit protection.
- Rc: residual-current 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.
- L high-breaking-capacity performance level.
- 120 kA Icu at 380–415 V AC.
Advanced LSIRc Protection for 1250 A Distribution Systems
The ABB SACE Tmax T7 platform is engineered for high-current low-voltage installations where reliable fault interruption and configurable electronic protection are essential. The T7L 1250 combines a 1250 A current rating with ABB's L performance level, delivering an ultimate breaking capacity of 120 kA at 380–415 V AC and up to 200 kA at 220–230 V AC.
The PR332/P LSIRc electronic trip unit combines long-time overload, short-time delayed and instantaneous short-circuit functions with residual-current protection. Its overload setting is adjustable from 500–1250 A, short-time protection from 750–12500 A and instantaneous protection from 1875–18750 A, providing substantial flexibility for coordinated protection of high-current electrical 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 residual-current protection.
- Fixed switchgear requiring configurable electronic LSIRc protection.
Technical Specifications
| Series | SACE Tmax T7 |
|---|---|
| ABB designation | T7L 1250 PR332/P LSIRc In=1250A 4p F F |
| Order code | 1SDA062944R1 |
| EAN | 8015644654931 |
| 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 LSIRc |
| Trip-unit technology | Solid-state electronic |
| Protection functions | Long-time, short-time, instantaneous and residual current |
| Overload release 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 |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Rated ultimate short-circuit breaking capacity (Icu) at 220–230 V AC | 200 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 380–415 V AC | 120 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 440 V AC | 100 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 500 V AC | 85 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 690 V AC | 50 kA |
| Rated service short-circuit breaking capacity (Ics) at 380–415 V AC | 120 kA |
| Rated service short-circuit breaking capacity (Ics) at 500 V AC | 64 kA |
| Rated service short-circuit breaking capacity (Ics) at 690 V AC | 37.5 kA |
| Rated short-time withstand current (Icw) | 20 kA for 1 s |
| Installation | Fixed |
| Terminal connection | Front terminals |
| Main-circuit connection | Bolted connection |
| Operating mechanism | Lever |
| Degree of protection | IP20 |
| Dimensions (H × W × D) | 268 × 235 × 154 mm |
| Net weight | approx. 9.9 kg |
| Standard | IEC |
| ABB product group | 310511-T-Max T4 - T8 |
Frequently Asked Questions
What is the ABB 1SDA062944R1?
The ABB 1SDA062944R1 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 LSIRc electronic trip unit.
What is the breaking capacity of the ABB T7L 1250 1SDA062944R1?
The T7L 1250 has a rated ultimate short-circuit breaking capacity of 120 kA at 380–415 V AC, with an Icu of up to 200 kA at 220–230 V AC.
What protection functions does the PR332/P LSIRc trip unit provide?
The PR332/P LSIRc electronic trip unit provides long-time overload, short-time delayed short-circuit, instantaneous short-circuit and residual-current protection.
What are the protection adjustment ranges of the ABB 1SDA062944R1?
The overload release is adjustable from 500–1250 A, the short-time delayed short-circuit release from 750–12500 A, and the instantaneous short-circuit release from 1875–18750 A.
Does the ABB 1SDA062944R1 provide residual-current protection?
Yes. The Rc function of the PR332/P LSIRc trip unit provides residual-current protection in addition to overload and short-circuit protection, making the breaker suitable for high-current installations requiring enhanced protection against residual or leakage currents.
Trusted ABB Power Distribution Protection
ABB SACE Tmax T7 moulded case circuit breakers combine high-current capability, advanced electronic protection and substantial short-circuit breaking performance for dependable protection and coordination in demanding industrial and commercial low-voltage distribution systems.
