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1SDA062979R1 ABB T7V 1250 PR232/P LSI 1250 A 3-Pole MCCB
ABB 1SDA062979R1 is a T7V 1250 three-pole moulded case circuit breaker with a 1250 A rating, PR232/P LSI electronic protection and 150 kA ultimate breaking capacity at 400 V AC.
£10,094.69
Why Choose the ABB 1SDA062979R1 T7V 1250 Circuit Breaker?
The ABB 1SDA062979R1 is a high-performance Tmax T7V 1250 moulded case circuit breaker (MCCB) designed for protection and switching of high-current low-voltage electrical distribution systems. Equipped with the PR232/P LSI electronic trip unit, this three-pole breaker provides adjustable long-time overload, short-time delayed short-circuit and instantaneous short-circuit protection for demanding industrial and commercial installations.
As part of the ABB SACE Tmax T7 series, the T7V 1250 combines a high current rating with very high fault-breaking performance. Its V performance level provides a rated ultimate short-circuit breaking capacity of 150 kA at 400 V AC, while the rated uninterrupted current of 1250 A makes it suitable for major distribution boards, high-current feeders and industrial power distribution systems.
The 1SDA062979R1 is supplied as a fixed three-pole circuit breaker with front terminals and a stored-energy operating mechanism. With a rated voltage of 690 V AC, adjustable overload protection from 500–1250 A and comprehensive LSI protection, it provides flexible and dependable protection for demanding low-voltage installations.
Key Advantages
- High-capacity 1250 A moulded case circuit breaker for industrial power distribution.
- 150 kA ultimate breaking capacity at 400 V AC for installations with high prospective fault currents.
- PR232/P LSI electronic trip unit provides adjustable overload and short-circuit protection.
- Three-pole fixed construction with front main-circuit connections.
- Adjustable overload protection range of 500–1250 A.
- Optional motor operation enables integration into automated power distribution systems.
Key Features
- ABB SACE Tmax T7V 1250 series.
- 1250 A rated uninterrupted current.
- PR232/P LSI solid-state electronic release.
- 150 kA Icu at 400 V AC, 50 Hz.
- Adjustable overload protection from 500–1250 A.
- Adjustable short-time delayed short-circuit protection from 750–12500 A.
- Adjustable instantaneous short-circuit protection from 1875–15000 A.
- 690 V AC rated voltage.
- Fixed mounting with front terminals and stored-energy operating mechanism.
Advanced Circuit Protection for Power Distribution
Moulded case circuit breakers such as the ABB Tmax T7V protect electrical distribution systems against overloads and short circuits while providing reliable isolation and switching of high-current circuits. The T7V performance level is particularly suited to installations with high prospective short-circuit currents, delivering an ultimate breaking capacity of 150 kA at 400 V AC.
The PR232/P LSI electronic trip unit provides adjustable long-time, short-time delayed and instantaneous protection. These adjustable protection thresholds allow the breaker to be coordinated with downstream equipment and the characteristics of the electrical installation, supporting selective and dependable protection in sophisticated industrial distribution systems.
Typical Applications
- Main low-voltage distribution boards and switchboards.
- High-current industrial feeder protection.
- Manufacturing plants and process facilities.
- Commercial and infrastructure power distribution.
- Industrial control and power distribution panels.
- Electrical systems with high prospective short-circuit currents.
Technical Specifications
| Series | SACE Tmax T7 |
|---|---|
| Order code / MPN | 1SDA062979R1 |
| ABB product group | 310511-T-Max T4 - T8 |
| Product type | Moulded case circuit breaker (MCCB) |
| Frame size | T7 |
| Performance level | V |
| Rated current (In) | 1250 A |
| Rated uninterrupted current (Iu) | 1250 A |
| Rated voltage | 690 V AC |
| Number of poles | 3 |
| Trip unit | PR232/P LSI |
| Release type | Electronic / solid-state |
| Protection functions | L, S and I |
| Overload setting range | 500–1250 A |
| Short-time delayed short-circuit setting range | 750–12500 A |
| Instantaneous short-circuit setting range | 1875–15000 A |
| Ultimate short-circuit breaking capacity (Icu) at 400 V AC, 50 Hz | 150 kA |
| Integrated earth-fault protection | No |
| Protection rating | IP20 |
| Mounting type | Fixed circuit breaker |
| Terminal position | Front |
| Main circuit connection | Bolt connection |
| Operating mechanism | Stored-energy mechanism |
| Complete with protection unit | Yes |
| Motor operator | Optional |
| DIN rail mounting | No |
Frequently Asked Questions
What is the ABB 1SDA062979R1 used for?
This circuit breaker is designed to protect and switch high-current low-voltage electrical distribution circuits in industrial, commercial and infrastructure installations.
What is the rated current of the ABB T7V 1250?
The 1SDA062979R1 has a rated uninterrupted current of 1250 A, with its overload release adjustable from 500–1250 A.
What protection functions does the PR232/P LSI trip unit provide?
The PR232/P LSI electronic trip unit provides long-time overload, short-time delayed short-circuit and instantaneous short-circuit protection.
What is the breaking capacity of the 1SDA062979R1?
The T7V version provides a rated ultimate short-circuit breaking capacity of 150 kA at 400 V AC, 50 Hz.
How is this circuit breaker installed?
The breaker is supplied in a fixed three-pole configuration with front terminals and a stored-energy operating mechanism, with optional motor operation available.
Trusted for Industrial Power Distribution
ABB SACE Tmax circuit breakers are designed for demanding low-voltage power distribution applications where dependable switching, high fault-breaking performance and configurable electronic circuit protection are required.
