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1SDA062937R1 ABB T7L 1250 PR231/P I 1250A 4P Circuit Breaker
ABB 1SDA062937R1 is a Tmax T7L 1250 A four-pole fixed moulded-case circuit breaker with a PR231/P-I electronic trip unit and 120 kA ultimate breaking capacity at 380–415 V AC for high-current short-circuit protection.
£9,862.70
Why Choose the ABB T7L 1250 PR231/P I 1250A Circuit Breaker?
The ABB 1SDA062937R1, designated T7L 1250 PR231/P I In=1250A 4p F F, 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 a PR231/P-I electronic trip unit for dependable short-circuit protection.
The T7L version provides substantial short-circuit interruption capability, including a rated ultimate short-circuit breaking capacity of 120 kA at 380–415 V AC. Its PR231/P-I electronic release provides adjustable instantaneous short-circuit protection, making the breaker particularly suitable for high-current distribution and applications where robust fault interruption is essential.
With its four-pole configuration, fixed installation, front terminals and lever operating mechanism, the 1SDA062937R1 is designed for straightforward integration into low-voltage switchboards and distribution assemblies. Its 1250 A current rating and high breaking capacity make it suitable for industrial, commercial and infrastructure installations with significant prospective fault currents.
Key Advantages
- High-performance 1250 A moulded-case circuit breaker for demanding low-voltage distribution systems.
- 120 kA ultimate breaking capacity at 380–415 V AC for high fault-level installations.
- PR231/P-I electronic trip unit with adjustable instantaneous short-circuit protection.
- Four-pole configuration suitable for three-phase and neutral distribution networks.
- Fixed installation with front terminals for reliable switchboard integration.
- Manual lever operating mechanism for straightforward local operation.
Key Features
- ABB Tmax T7L 1250 series.
- 1250 A rated uninterrupted current.
- PR231/P-I electronic protection trip unit.
- 120 kA Icu at 380–415 V AC.
- Four-pole configuration.
- 1250–15000 A adjustable instantaneous short-circuit protection range.
- Neutral protection settings of OFF, 50% and 100%.
- Fixed installation with front main-circuit terminals.
- Bolt-connected main circuit terminals.
- Manual lever operating mechanism.
- IP20 protection rating.
High-Performance Short-Circuit Protection for Power Distribution
The ABB Tmax T7L platform is designed for high-current low-voltage electrical systems where substantial short-circuit interruption capability is required. With a rated uninterrupted current of 1250 A and an ultimate breaking capacity of 120 kA at 380–415 V AC, the 1SDA062937R1 can be integrated into distribution systems with significant prospective fault levels.
The PR231/P-I electronic trip unit provides adjustable instantaneous protection, allowing the short-circuit trip threshold to be configured to suit the protected circuit and installation requirements. Combined with its four-pole construction, fixed mounting and front terminals, the breaker provides a robust solution for high-current switching and short-circuit protection in professional low-voltage assemblies.
Typical Applications
- Main low-voltage distribution switchboards.
- Industrial power distribution systems.
- Manufacturing and process plants.
- Commercial buildings and infrastructure installations.
- Transformer secondary circuits.
- Three-phase and neutral distribution networks.
- High fault-level electrical distribution systems.
Technical Specifications
| Series | Tmax T7 |
|---|---|
| ABB order code | 1SDA062937R1 |
| ABB product group | 310511-T-Max T4 - T8 |
| Product type | Moulded-case circuit breaker (MCCB) |
| Frame | T7L 1250 |
| Rated uninterrupted current | 1250 A |
| Number of poles | 4 |
| Trip unit | PR231/P-I |
| Protection function | Adjustable instantaneous short-circuit protection |
| Instantaneous short-circuit adjustment | 1.5–12 × In |
| Instantaneous short-circuit adjustment range | 1875–15000 A |
| Neutral protection settings | OFF / 50% / 100% |
| Rated voltage | 690 V AC |
| Ultimate short-circuit breaking capacity Icu at 220–230 V AC | 200 kA |
| Ultimate short-circuit breaking capacity Icu at 380–415 V AC | 120 kA |
| Ultimate short-circuit breaking capacity Icu at 440 V AC | 100 kA |
| Ultimate short-circuit breaking capacity Icu at 500 V AC | 85 kA |
| Ultimate short-circuit breaking capacity Icu at 690 V AC | 50 kA |
| Installation | Fixed |
| Terminal position | Front |
| Main circuit connection | Bolt connection |
| Operating mechanism | Lever |
| Motor drive | Optional |
| Protection rating | IP20 |
| Dimensions (H × W × D) | approx. 268 × 235 × 154 mm |
| Weight | approx. 9.9 kg |
Frequently Asked Questions
What is the ABB 1SDA062937R1 used for?
The ABB 1SDA062937R1 is a 1250 A four-pole moulded-case circuit breaker designed for switching and short-circuit protection in high-current low-voltage electrical distribution systems.
What trip unit is fitted to the ABB T7L 1250 1SDA062937R1?
The circuit breaker is equipped with an ABB PR231/P-I electronic trip unit, providing adjustable instantaneous short-circuit protection.
What is the breaking capacity of the ABB T7L 1250?
The 1SDA062937R1 provides an ultimate short-circuit breaking capacity of 120 kA at 380–415 V AC, with breaking capacity reaching 200 kA at 220–230 V AC.
What is the short-circuit adjustment range of the 1SDA062937R1?
The PR231/P-I release provides adjustable instantaneous short-circuit protection from 1.5–12 × In, corresponding to approximately 1875–15000 A with the 1250 A rated trip unit.
Where is the ABB 1SDA062937R1 typically installed?
The breaker is typically installed in low-voltage switchboards, industrial distribution panels and power distribution systems requiring 1250 A four-pole switching and high short-circuit interruption performance.
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.
