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1SDA062935R1 ABB T7L 1250 PR332/P LSIG 1250 A 3-Pole MCCB
ABB 1SDA062935R1 is a SACE Tmax T7L 1250 A three-pole fixed moulded case circuit breaker with front terminals, a PR332/P-LSIG electronic trip unit and 120 kA ultimate breaking capacity at 380–415 V AC.
£9,857.85
Why Choose the ABB T7L 1250 1SDA062935R1 Circuit Breaker?
The ABB 1SDA062935R1 is a high-performance SACE Tmax T7L moulded case circuit breaker (MCCB) designed for demanding low-voltage power distribution systems. ABB identifies this configuration as T7L 1250 PR332/P LSIG In=1250A 3p F F, combining a 1250 A rated uninterrupted current with the advanced PR332/P-LSIG electronic trip unit and three-pole construction.
The T7L performance level provides an ultimate short-circuit breaking capacity of 120 kA at 380–415 V AC, making the breaker suitable for installations with high prospective fault currents. Its PR332/P-LSIG electronic trip unit provides long-time overload (L), short-time short-circuit (S), instantaneous short-circuit (I) and earth-fault (G) protection for comprehensive power distribution protection.
This version is a three-pole fixed circuit breaker with front terminals and a lever operating mechanism. Long-time overload protection is adjustable from 500–1250 A, short-time protection from 750–12500 A and instantaneous protection from 1875–18750 A, providing flexible coordination for high-current industrial distribution networks.
Key Advantages
- High-performance 1250 A moulded case circuit breaker for demanding power distribution applications.
- 120 kA ultimate breaking capacity at 380–415 V AC for high prospective fault levels.
- Advanced PR332/P-LSIG electronic trip unit.
- Provides long-time, short-time, instantaneous and earth-fault protection.
- Long-time overload protection adjustable from 500–1250 A.
- Short-time delayed short-circuit protection adjustable from 750–12500 A.
- Instantaneous short-circuit protection adjustable from 1875–18750 A.
- Three-pole fixed configuration with front terminals for straightforward switchboard integration.
Key Features
- ABB SACE Tmax T7L 1250 series.
- 1250 A rated uninterrupted current.
- PR332/P-LSIG electronic protection trip unit.
- Long-time overload (L) protection.
- Short-time short-circuit (S) protection.
- Instantaneous short-circuit (I) protection.
- Earth-fault / ground-fault (G) protection.
- 500–1250 A long-time protection adjustment range.
- 750–12500 A short-time protection adjustment range.
- 1875–18750 A instantaneous protection adjustment range.
- 120 kA Icu at 380–415 V AC.
- Three-pole (3P) construction.
- Fixed installation with front terminals.
- Manual lever / toggle operating mechanism.
Comprehensive LSIG Protection for 1250 A Power Distribution
The ABB SACE Tmax T7L platform is engineered for high-current low-voltage distribution systems where substantial short-circuit interruption capability is required. The 1SDA062935R1 combines a 1250 A rating with an ultimate breaking capacity of 120 kA at 380–415 V AC, providing robust protection for industrial feeders, main distribution boards and switchgear exposed to high prospective fault currents.
The integrated PR332/P-LSIG electronic trip unit provides four complementary protection functions. Long-time protection responds to sustained overloads, short-time protection supports selective coordination, instantaneous protection provides rapid response to severe short circuits, and earth-fault protection detects ground-fault conditions. The adjustable protection thresholds allow the breaker to be coordinated with cables, downstream devices and other elements of the electrical distribution system.
Typical Applications
- Industrial low-voltage power distribution systems.
- Main and sub-main electrical switchboards.
- High-current feeder and cable protection.
- Manufacturing and process plant power systems.
- Commercial and infrastructure distribution systems.
- Installations requiring integrated earth-fault protection.
- Systems requiring selective short-circuit coordination.
- OEM switchgear and electrical panel assemblies.
Technical Specifications
| Series | SACE Tmax T7 |
|---|---|
| ABB order code | 1SDA062935R1 |
| GTIN / EAN | 8015644654849 |
| Product type | Moulded case circuit breaker (MCCB) |
| Frame / breaker size | T7 1250 |
| Short-circuit performance level | L |
| Rated uninterrupted current (Iu) | 1250 A |
| Rated voltage | 690 V AC |
| Ultimate short-circuit breaking capacity (Icu) | 200 kA at 220–230 V AC |
| Rated short-time withstand current (Icw) | 20 kA for 1 s |
| Number of poles | 3 |
| Trip unit | PR332/P-LSIG electronic trip unit |
| Protection functions | Long-time (L), short-time (S), instantaneous (I) and earth-fault (G) |
| Long-time overload adjustment | 0.4–1 × In |
| Long-time overload adjustment range | 500–1250 A |
| Short-time delayed short-circuit adjustment range | 750–12500 A |
| Instantaneous short-circuit adjustment | 1.5–15 × In |
| Instantaneous short-circuit adjustment range | 1875–18750 A |
| Earth-fault adjustment | 0.2–1 × In |
| Installation | Fixed |
| Terminal configuration | Front terminals |
| Operating mechanism | Manual lever / toggle |
| Motor drive integrated | No |
| Protection rating | IP20 |
| Dimensions (H × W × D) | 268 × 210 × 154 mm |
| Application | Power distribution and high-current circuit protection |
| Product group | 310511 – T-Max T4 - T8 |
Frequently Asked Questions
What is the ABB 1SDA062935R1 used for?
The ABB 1SDA062935R1 is a 1250 A three-pole moulded case circuit breaker designed to protect high-current low-voltage power distribution circuits against overload, short-circuit and earth-fault conditions.
What breaking capacity does the ABB T7L 1250 1SDA062935R1 provide?
The T7L configuration provides an ultimate short-circuit breaking capacity of 120 kA at 380–415 V AC. Its Icu varies with system voltage, reaching 200 kA at 220–230 V AC.
Which trip unit is fitted to the ABB 1SDA062935R1?
The breaker is equipped with an ABB PR332/P-LSIG electronic trip unit, providing long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection.
What are the protection adjustment ranges of the ABB 1SDA062935R1?
Long-time overload protection is adjustable from 500–1250 A, short-time delayed short-circuit protection from 750–12500 A, and instantaneous short-circuit protection from 1875–18750 A.
What does LSIG mean on the ABB PR332/P trip unit?
LSIG identifies long-time overload (L), short-time short-circuit (S), instantaneous short-circuit (I) and earth-fault or ground-fault (G) protection functions.
Trusted ABB Power Distribution Protection
ABB SACE Tmax moulded case circuit breakers combine high short-circuit interruption performance with advanced electronic protection and flexible installation configurations for dependable protection and control of demanding industrial and commercial power distribution systems.
