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1SDA062953R1 ABB T7L 1250 PR231/P-I 1250A 4P Circuit Breaker
ABB 1SDA062953R1 is a Tmax T7L 1250 A four-pole fixed moulded-case circuit breaker with a PR231/P-I electronic trip unit, stored-energy operating mechanism and 120 kA ultimate short-circuit breaking capacity at 400 V AC.
£10,849.01
Why Choose the ABB T7L 1250 PR231/P-I 1250A Circuit Breaker?
The ABB 1SDA062953R1, designated T7L 1250 PR231/P-I In=1250A 4p F F M, is a high-performance four-pole moulded-case circuit breaker (MCCB) designed for protection and switching in demanding low-voltage power distribution systems. Part of the established ABB Tmax T7 series, it combines a rated uninterrupted current of 1250 A with the PR231/P-I solid-state electronic trip unit for dependable short-circuit protection.
The T7L version provides substantial short-circuit interruption capability, with a rated ultimate short-circuit breaking capacity of 120 kA at 400 V AC, 50 Hz. Its PR231/P-I electronic release provides adjustable instantaneous short-circuit protection, enabling the breaker to respond rapidly to severe fault currents in high-current electrical distribution systems.
With its four-pole configuration, fixed construction, front terminals and stored-energy operating mechanism, the 1SDA062953R1 is designed for integration into professional low-voltage switchboards and distribution assemblies. An optional motor drive can be fitted where remote or automated operation is required, making the breaker suitable for sophisticated industrial and infrastructure power systems.
Key Advantages
- High-performance 1250 A moulded-case circuit breaker for demanding low-voltage distribution systems.
- 120 kA ultimate short-circuit breaking capacity at 400 V AC.
- PR231/P-I solid-state electronic trip unit for adjustable short-circuit protection.
- Four-pole configuration suitable for three-phase and neutral distribution networks.
- Stored-energy operating mechanism suitable for sophisticated switchboard applications.
- Optional motor drive supports remote and automated circuit-breaker operation.
Key Features
- ABB Tmax T7L 1250 series.
- 1250 A rated uninterrupted current.
- PR231/P-I electronic protection trip unit.
- 120 kA Icu at 400 V AC, 50 Hz.
- Four-pole configuration.
- 500–1250 A overload release setting range.
- 1250–12500 A short-circuit release adjustment range.
- Fixed construction with front terminals.
- Stored-energy operating mechanism.
- Optional motor drive.
- Designed for rated operation at 690 V AC.
High-Performance Short-Circuit Protection for Power Distribution
The ABB Tmax T7L platform is designed for high-current low-voltage systems where substantial short-circuit interruption capability is essential. With a rated uninterrupted current of 1250 A and an ultimate short-circuit breaking capacity of 120 kA at 400 V AC, the 1SDA062953R1 provides robust protection for distribution networks with significant prospective fault currents.
The PR231/P-I electronic trip unit provides adjustable short-circuit protection, while the stored-energy operating mechanism supports reliable switching and the possibility of motorised operation. Combined with its four-pole construction and fixed front-terminal arrangement, the breaker provides a practical solution for high-current protection in professional low-voltage switchboards and power distribution assemblies.
Typical Applications
- Main low-voltage distribution switchboards.
- Industrial power distribution systems.
- Manufacturing and process plants.
- Commercial buildings and infrastructure installations.
- Transformer secondary and high-current feeder circuits.
- Three-phase and neutral distribution networks.
- High fault-level electrical distribution systems.
Technical Specifications
| Series | Tmax T7 |
|---|---|
| ABB order code | 1SDA062953R1 |
| ABB product group | 310511-T-Max T4 - T8 |
| EAN | 8015644655020 |
| Product type | Moulded-case circuit breaker (MCCB) |
| Frame | T7L 1250 |
| Rated uninterrupted current Iu | 1250 A |
| Number of poles | 4 |
| Trip unit | PR231/P-I |
| Release type | Solid-state electronic |
| Overload release current setting | 500–1250 A |
| Short-time delayed short-circuit release adjustment | 1250–12500 A |
| Instantaneous short-circuit release adjustment | 1250–12500 A |
| Rated voltage | 690 V AC |
| Ultimate short-circuit breaking capacity Icu at 400 V AC, 50 Hz | 120 kA |
| Installation | Fixed |
| Terminal arrangement | Front terminals |
| Operating mechanism | Stored-energy mechanism |
| Integrated motor drive | No |
| Optional motor drive | Yes |
| DIN rail mounting | No |
| Country of origin | Italy |
| Weight | approx. 15.5 kg |
Frequently Asked Questions
What is the ABB 1SDA062953R1 used for?
The ABB 1SDA062953R1 is a 1250 A four-pole moulded-case circuit breaker designed for switching and protection in high-current low-voltage electrical distribution systems, particularly where substantial short-circuit interruption capability is required.
What trip unit is fitted to the ABB T7L 1250 1SDA062953R1?
The circuit breaker is equipped with an ABB PR231/P-I solid-state electronic trip unit providing adjustable short-circuit protection.
What is the breaking capacity of the ABB 1SDA062953R1?
The ABB T7L 1250 1SDA062953R1 has a rated ultimate short-circuit breaking capacity of 120 kA at 400 V AC, 50 Hz.
What is the short-circuit adjustment range of the 1SDA062953R1?
The PR231/P-I protection unit provides short-circuit release adjustment from 1250–12500 A, allowing the protection threshold to be configured for the requirements of the electrical installation.
Can the ABB 1SDA062953R1 be motor operated?
Yes. The breaker has a stored-energy operating mechanism and supports an optional motor drive, allowing it to be incorporated into remote or automated switching systems when suitably equipped.
Trusted Protection from ABB
ABB Tmax moulded-case circuit breakers are widely used in industrial, commercial and infrastructure power distribution systems, providing dependable circuit protection, flexible electronic trip functionality and high short-circuit interruption performance.
