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1SDA056060R1 ABB E2L 1250 PR122/P-LSI 1250 A 4-Pole Fixed Air Circuit Breaker
ABB 1SDA056060R1 is a SACE Emax E2L 1250 A four-pole fixed air circuit breaker with rear horizontal terminals and a PR122/P-LSI R1250 electronic overcurrent release providing long-time overload, short-time delayed and instantaneous short-circuit protection.
£11,094.21
Why Choose the ABB E2L 1250 PR122/P-LSI 1SDA056060R1 Air Circuit Breaker?
The ABB 1SDA056060R1 is a high-performance SACE Emax E2L 1250 air circuit breaker (ACB) designed for reliable switching, isolation and overcurrent protection in demanding low-voltage electrical distribution systems. This four-pole fixed circuit breaker is equipped with the PR122/P-LSI R1250 electronic overcurrent release, combining a 1250 A continuous-current rating with advanced electronic protection.
The E2L performance level is engineered for installations requiring particularly high short-circuit interruption capability. At 400–415 V AC, the breaker provides a rated ultimate short-circuit breaking capacity of 130 kA, while its rated operational voltage extends to 690 V AC. The PR122/P-LSI release provides long-time overload, short-time delayed short-circuit and instantaneous short-circuit protection.
This version is supplied as a four-pole fixed circuit breaker with rear horizontal terminals, making it suitable for permanent installation in compatible switchboards. Four auxiliary contacts and open/closed position indication support monitoring and integration into industrial, commercial and infrastructure power distribution systems.
Key Advantages
- High-performance 1250 A air circuit breaker for demanding low-voltage distribution.
- Four-pole configuration suitable for systems requiring phase and neutral switching.
- Exceptional 130 kA Icu at 400–415 V AC.
- Advanced PR122/P-LSI R1250 electronic overcurrent release.
- LSI protection provides long-time overload, short-time delayed and instantaneous short-circuit protection.
- Fixed construction with rear horizontal terminals for permanent switchboard installation.
- Part of the high-breaking-capacity ABB SACE Emax E2L air circuit breaker range.
Key Features
- ABB SACE Emax E2L 1250 series.
- 1250 A rated uninterrupted current.
- Four-pole configuration.
- Fixed execution.
- Rear horizontal terminals (HR).
- PR122/P-LSI R1250 electronic trip unit.
- Long-time overload protection.
- Short-time delayed short-circuit protection.
- Instantaneous short-circuit protection.
- 130 kA Icu at 400–415 V AC.
- 1000 V rated insulation voltage and 12 kV impulse withstand voltage.
- Four auxiliary contacts with open/closed position indication.
High-Breaking-Capacity LSI Protection for Power Distribution
ABB SACE Emax E2L air circuit breakers are designed for low-voltage installations where very high prospective short-circuit currents require substantial interruption capability. The E2L 1250 combines a 1250 A continuous-current rating with up to 130 kA ultimate breaking capacity at common low-voltage distribution voltages, making it suitable for demanding main distribution and industrial switchgear applications.
The PR122/P-LSI electronic trip unit provides three principal protection functions: long-time overload protection, short-time delayed short-circuit protection and instantaneous short-circuit protection. This combination allows the 1SDA056060R1 to provide comprehensive overcurrent protection while supporting coordination and selectivity requirements within appropriately engineered electrical distribution systems.
Typical Applications
- Main low-voltage electrical distribution switchboards.
- Industrial power distribution systems with high prospective fault currents.
- Transformer secondary protection and distribution.
- Generator and utility distribution systems.
- Manufacturing and process plant switchgear.
- Commercial and infrastructure electrical distribution.
- Four-pole installations requiring phase and neutral switching with LSI protection.
Technical Specifications
| Product family | SACE Emax |
|---|---|
| Series | E2L |
| ABB order code | 1SDA056060R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker |
| Rated uninterrupted current (Iu) | 1250 A |
| Rated operational current (Ie) | 1250 A |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Current type | AC |
| Number of poles | 4 |
| Execution | Fixed |
| Terminal arrangement | Rear horizontal terminals (HR) |
| Trip unit | PR122/P-LSI R1250 |
| Release type | Electronic overcurrent release |
| Protection functions | LSI – long-time overload, short-time delayed and instantaneous short-circuit protection |
| Short-circuit performance level | L |
| Rated ultimate short-circuit breaking capacity (Icu) at 220–415 V AC | 130 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 440 V AC | 110 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 500–690 V AC | 85 kA |
| Rated service short-circuit breaking capacity (Ics) at 220–415 V AC | 130 kA |
| Rated service short-circuit breaking capacity (Ics) at 440 V AC | 110 kA |
| Rated service short-circuit breaking capacity (Ics) at 500–690 V AC | 65 kA |
| Rated short-time withstand current (Icw), 1 s | 10 kA |
| Overload release adjustment range | 500–1250 A |
| Short-time delayed short-circuit adjustment range | 1250–12500 A |
| Instantaneous short-circuit adjustment range | 1875–18750 A |
| Power loss | 105 W |
| Electrical durability at ≤440 V | 4000 cycles |
| Electrical durability at 500–690 V | 3000 cycles |
| Mechanical durability | 20000 cycles |
| Auxiliary contacts | 4 |
| Position indication | Open / closed |
| Dimensions (W × H × D) | 386 × 418 × 302 mm |
| Net weight | 68 kg |
| EAN | 8015644574000 |
Frequently Asked Questions
What is the ABB 1SDA056060R1 used for?
The ABB 1SDA056060R1 is a 1250 A four-pole fixed air circuit breaker designed for switching, isolation and electronic overcurrent protection in demanding low-voltage electrical distribution systems, particularly where high short-circuit interruption capability is required.
What is the current rating of the ABB E2L 1250 1SDA056060R1?
The ABB 1SDA056060R1 has a rated uninterrupted current of 1250 A and a rated operational voltage of up to 690 V AC.
What protection does the PR122/P-LSI trip unit provide?
The PR122/P-LSI electronic trip unit provides LSI protection consisting of long-time overload, short-time delayed short-circuit and instantaneous short-circuit protection.
What is the short-circuit breaking capacity of the ABB E2L 1250?
The E2L 1250 provides a rated ultimate short-circuit breaking capacity of 130 kA at 220–415 V AC, 110 kA at 440 V AC and 85 kA at 500–690 V AC.
Is the ABB 1SDA056060R1 fixed or withdrawable?
The ABB 1SDA056060R1 is a four-pole fixed air circuit breaker with rear horizontal terminals for permanent installation within compatible low-voltage switchgear.
Trusted for High-Performance Industrial Power Distribution
ABB SACE Emax air circuit breakers are engineered to provide dependable switching, isolation and advanced electronic protection in demanding low-voltage power distribution systems, with the E2L range providing particularly high short-circuit breaking performance for critical industrial, commercial and infrastructure installations.
