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1SDA056061R1 ABB E2L 1250 PR122/P-LSIG 1250 A 4-Pole Fixed Air Circuit Breaker
ABB 1SDA056061R1 is a SACE Emax E2L 1250 A four-pole fixed air circuit breaker with rear horizontal terminals and a PR122/P-LSIG R1250 electronic overcurrent release providing comprehensive long-time, short-time, instantaneous and earth-fault protection.
£12,037.36
Why Choose the ABB E2L 1250 PR122/P-LSIG 1SDA056061R1 Air Circuit Breaker?
The ABB 1SDA056061R1 is a high-performance SACE Emax E2L 1250 air circuit breaker (ACB) designed for reliable switching, isolation and comprehensive protection in demanding low-voltage electrical distribution systems. This four-pole fixed circuit breaker is equipped with the PR122/P-LSIG R1250 electronic overcurrent release, combining a 1250 A continuous-current rating with advanced electronic fault protection.
The E2L performance level is designed for installations requiring particularly high short-circuit interruption capability. With a rated operational voltage of up to 690 V AC, the E2L 1250 is suitable for industrial switchboards, transformer distribution, commercial infrastructure and other high-current applications. The PR122/P-LSIG release provides long-time overload, short-time delayed short-circuit, instantaneous short-circuit and earth-fault protection.
This version is supplied as a four-pole fixed circuit breaker with rear horizontal terminals, making it suitable for permanent installation within compatible switchboards. It is fitted with four auxiliary contacts and circuit-breaker open/closed position indication, providing useful status signalling alongside the comprehensive LSIG protection functions.
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.
- High E2L short-circuit interruption capability for installations with substantial prospective fault currents.
- Advanced PR122/P-LSIG R1250 electronic overcurrent release.
- Comprehensive LSIG protection against overload, short-time, instantaneous and earth-fault conditions.
- 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-LSIG R1250 electronic trip unit.
- Long-time overload protection.
- Short-time delayed short-circuit protection.
- Instantaneous short-circuit protection.
- Integrated earth-fault protection.
- Four auxiliary contacts.
- Open/closed circuit-breaker position indication.
High-Breaking-Capacity LSIG Protection for Power Distribution
ABB SACE Emax E2L air circuit breakers are designed for low-voltage installations where high prospective short-circuit currents demand substantial interruption capability. The E2L 1250 combines a 1250 A continuous-current rating with the high fault-clearing performance required for demanding main distribution, industrial and infrastructure switchgear applications.
The PR122/P-LSIG electronic trip unit provides four principal protection functions: long-time overload protection, short-time delayed short-circuit protection, instantaneous short-circuit protection and earth-fault protection. This comprehensive LSIG configuration enables the 1SDA056061R1 to protect against a broad range of electrical fault conditions while supporting coordination and selectivity within appropriately engineered 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 neutral switching and earth-fault protection.
Technical Specifications
| Product family | SACE Emax |
|---|---|
| Series | E2L |
| ABB order code | 1SDA056061R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker |
| Rated uninterrupted current (Iu) | 1250 A |
| Rated operational voltage | Up to 690 V AC |
| Current type | AC |
| Number of poles | 4 |
| Execution | Fixed |
| Terminal arrangement | Rear horizontal terminals (HR) |
| Trip unit | PR122/P-LSIG R1250 |
| Release type | Electronic overcurrent release |
| Protection functions | LSIG – long-time overload, short-time delayed, instantaneous short-circuit and earth-fault protection |
| Short-circuit performance level | L |
| Rated ultimate short-circuit breaking capacity (Icu) at 400 V AC | 130 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 |
| Earth-fault protection | Integrated |
| Auxiliary contacts | 4 changeover contacts |
| Position indication | Open / closed |
| Motor drive | Optional |
| Net weight | 68 kg |
| EAN | 8015644574017 |
Frequently Asked Questions
What is the ABB 1SDA056061R1 used for?
The ABB 1SDA056061R1 is a 1250 A four-pole fixed air circuit breaker designed for switching, isolation and comprehensive electronic 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 1SDA056061R1?
The ABB 1SDA056061R1 has a rated uninterrupted current of 1250 A and is designed for low-voltage AC distribution applications with operational voltages up to 690 V AC.
What protection does the PR122/P-LSIG trip unit provide?
The PR122/P-LSIG electronic trip unit provides LSIG protection consisting of long-time overload, short-time delayed short-circuit, instantaneous short-circuit and earth-fault protection.
What is the short-circuit breaking capacity of the ABB E2L 1250?
The E2L performance level is designed for very high prospective fault currents, with a rated ultimate short-circuit breaking capacity of 130 kA at 400 V AC.
Is the ABB 1SDA056061R1 fixed or withdrawable?
The ABB 1SDA056061R1 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.
