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1SDA062959R1 ABB T7L 1250 PR332/P LSIG 1250 A 4-Pole Moulded Case Circuit Breaker
ABB T7L 1250 PR332/P LSIG 4-pole moulded case circuit breaker with a 1250 A rated current, fixed front-terminal construction, stored-energy operating mechanism, comprehensive LSIG electronic protection and 120 kA breaking capacity at 380/415 V AC.
£12,821.57
Why Choose the ABB T7L 1250 PR332/P LSIG Moulded Case Circuit Breaker?
The ABB T7L 1250 PR332/P LSIG is a high-performance 4-pole moulded case circuit breaker (MCCB) designed for protection and control of demanding low-voltage power distribution systems. Part of the proven ABB Tmax T7 series, it combines a 1250 A rated uninterrupted current with comprehensive electronic protection and high short-circuit breaking capability.
Equipped with the PR332/P LSIG electronic trip unit, the T7L 1250 provides long-time, short-time, instantaneous and earth-fault protection functions. Its adjustable protection settings support effective coordination with cables, switchgear and downstream equipment, while the four-pole construction supports three-phase distribution systems incorporating a neutral conductor.
With an ultimate short-circuit breaking capacity of 120 kA at 380/415 V AC, a 690 V AC rated voltage, fixed construction, front terminals and a stored-energy operating mechanism, the T7L 1250 is engineered for high-capacity switchboards where dependable fault interruption and comprehensive electronic protection are required.
Key Advantages
- High-performance ABB Tmax T7 moulded case circuit breaker.
- 1250 A rated uninterrupted current for high-capacity distribution circuits.
- 120 kA Icu at 380/415 V AC for demanding fault conditions.
- PR332/P LSIG electronic trip unit for comprehensive circuit protection.
- Long-time, short-time, instantaneous and integrated earth-fault protection.
- 500–1250 A adjustable overload protection range.
- 4-pole configuration suitable for three-phase systems incorporating a neutral conductor.
- Fixed mounting, front terminals and stored-energy operating mechanism for switchboard integration.
Key Features
- ABB Tmax T7 series.
- T7L 1250 performance level.
- 1250 A rated uninterrupted current.
- 4-pole construction.
- PR332/P LSIG electronic protection unit.
- Long-time overload protection.
- Short-time delayed short-circuit protection.
- Instantaneous short-circuit protection.
- Integrated earth-fault protection.
- 500–1250 A overload release adjustment range.
- 750–12500 A short-time delayed short-circuit adjustment range.
- 1875–18750 A instantaneous short-circuit adjustment range.
- 120 kA ultimate short-circuit breaking capacity at 380/415 V AC.
- Fixed mounting with front terminals.
- Stored-energy operating mechanism.
Reliable Circuit Protection for Power Distribution
Moulded case circuit breakers such as the ABB Tmax T7 protect low-voltage electrical distribution circuits against overload, short-circuit and earth-fault conditions. The electronic protection unit monitors circuit current and initiates interruption when configured protection thresholds are exceeded, helping protect conductors, switchgear and connected electrical equipment.
The T7L 1250 combines a high 1250 A current rating and 120 kA breaking capacity at 380/415 V AC with the flexibility of PR332/P LSIG electronic protection. Its four-pole construction, adjustable protection functions and integrated earth-fault protection make it well suited to demanding three-phase distribution systems requiring comprehensive circuit protection.
Typical Applications
- Industrial low-voltage distribution switchboards.
- Main incomer and feeder circuit protection.
- High-current four-pole three-phase distribution systems.
- Commercial and infrastructure electrical distribution.
- Manufacturing and process-industry electrical systems.
- Power distribution centres and switchgear assemblies.
- High-fault-level installations requiring earth-fault protection.
Technical Specifications
| Series | Tmax T7 |
|---|---|
| ABB order code | 1SDA062959R1 |
| Product type | Moulded case circuit breaker |
| Rated uninterrupted current (Iu) | 1250 A |
| Rated voltage | 690 V AC |
| Number of poles | 4 |
| Trip unit | PR332/P |
| Protection functions | LSIG |
| Ultimate short-circuit breaking capacity (Icu) | 200 kA at 220/230 V AC |
| Overload release adjustment range | 500–1250 A |
| Short-time delayed short-circuit adjustment range | 750–12500 A |
| Instantaneous short-circuit adjustment range | 1875–18750 A |
| Earth-fault protection | Integrated |
| Earth-fault adjustment range | 0.2–1 × In |
| Neutral protection settings | OFF / 50% / 100% / 200% |
| Mounting type | Fixed |
| Terminal configuration | Front terminals |
| Main circuit connection | Bolted connection |
| Operating mechanism | Stored-energy mechanism |
| Degree of protection | IP20 |
| Dimensions (H × W × D) | 268 × 235 × 178 mm |
| Product net weight | 11.2 kg |
| ABB product group | 310511-T-Max T4 - T8 |
Frequently Asked Questions
What is the ABB T7L 1250 PR332/P LSIG used for?
This moulded case circuit breaker is designed to protect high-current low-voltage distribution circuits against overload, short-circuit and earth-fault conditions in demanding industrial and commercial electrical systems.
What is the rated current of ABB order code 1SDA062959R1?
The ABB T7L 1250 1SDA062959R1 has a rated uninterrupted current of 1250 A, with an adjustable overload protection range of 500–1250 A.
What is the breaking capacity of the ABB T7L 1250 1SDA062959R1?
The breaker has an ultimate short-circuit breaking capacity of 120 kA at 380/415 V AC, with voltage-dependent breaking capacities reaching 200 kA at 220/230 V AC.
Which trip unit is fitted to the ABB T7L 1250 1SDA062959R1?
This model is equipped with the ABB PR332/P LSIG electronic trip unit, providing long-time, short-time, instantaneous and earth-fault protection functions.
Does the ABB T7L 1250 1SDA062959R1 provide earth-fault protection?
Yes. The PR332/P LSIG protection unit incorporates earth-fault protection, with an adjustment range of 0.2–1 × In, in addition to long-time, short-time and instantaneous protection.
How is the ABB 1SDA062959R1 configured for installation?
ABB order code 1SDA062959R1 is a 4-pole fixed circuit breaker with front terminals and a stored-energy operating mechanism.
Trusted by Electrical Professionals Worldwide
ABB Tmax moulded case circuit breakers are widely used by electrical engineers, panel builders and industrial operators for dependable circuit protection, power distribution and control in demanding low-voltage installations.
