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1SDA057291R1 ABB E2B-A 1600 PR122/P-LSIG 1600A 3P Fixed Air Circuit Breaker
ABB 1SDA057291R1 E2B-A 1600 PR122/P-LSIG is a 1600 A three-pole fixed SACE Emax air circuit breaker with LSIG electronic protection and 42 kA service short-circuit breaking capacity for high-current low-voltage power distribution systems.
£8,476.16
Why Choose the ABB E2B-A 1600 PR122/P-LSIG 1600A 3P Fixed Air Circuit Breaker?
The ABB E2B-A 1600 PR122/P-LSIG, order code 1SDA057291R1, is a high-performance SACE Emax air circuit breaker designed for reliable protection and switching in high-current low-voltage electrical distribution systems. This three-pole E2B-A circuit breaker has a rated current of 1600 A and incorporates ABB's advanced PR122/P-LSIG electronic overcurrent release.
Part of the ABB SACE Emax range, the E2B-A combines robust circuit-breaker construction with comprehensive electronic protection for industrial, commercial and infrastructure power systems. The PR122/P-LSIG trip unit provides long-time, short-time, instantaneous and earth-fault protection functions, helping protect conductors, switchgear and connected equipment against overloads, short circuits and earth faults.
This model is supplied in a three-pole fixed configuration with horizontal rear terminals and uses an R1600 rating plug. Designed to UL 1066 requirements, it has a rated operational current of 1600 A, a rated voltage of 600 V and a service short-circuit breaking capacity of 42 kA at 240, 480 and 600 V AC.
Key Advantages
- High-performance 1600 A SACE Emax air circuit breaker for low-voltage power distribution.
- Three-pole configuration suitable for three-phase electrical systems.
- Advanced PR122/P-LSIG electronic trip unit with comprehensive circuit protection.
- LSIG functions provide long-time, short-time, instantaneous and earth-fault protection.
- 42 kA service short-circuit breaking capacity at 240, 480 and 600 V AC.
- Fixed construction with horizontal rear terminals for permanent switchboard installation.
Key Features
- ABB SACE Emax E2B-A series.
- 1600 A rated current.
- Three-pole construction.
- PR122/P-LSIG electronic overcurrent release.
- Long-time, short-time, instantaneous and earth-fault protection functions.
- R1600 rating plug.
- 24,000 A instantaneous setting reference.
- 600 V rated voltage.
- 42 kA service short-circuit breaking capacity at 240, 480 and 600 V AC.
- Fixed version with horizontal rear terminals.
- Designed to UL 1066 requirements.
Advanced Protection for High-Current Power Distribution
Air circuit breakers such as the ABB SACE Emax E2B-A provide controlled switching and protection of high-current low-voltage distribution circuits. The electronic trip unit monitors circuit conditions and initiates tripping when configured protection thresholds are exceeded, helping minimise damage caused by overloads, short circuits and earth faults.
The PR122/P-LSIG release provides adjustable electronic protection suited to selective and coordinated electrical distribution systems. Combined with the robust fixed SACE Emax architecture, this makes the E2B-A particularly suitable for main incoming, bus-coupler and feeder applications where dependable protection and high system availability are required.
Typical Applications
- Low-voltage power distribution switchboards.
- Industrial electrical distribution systems.
- Main incoming circuit protection.
- High-current feeder and bus-coupler protection.
- Commercial and infrastructure electrical systems.
- UL-compliant switchgear and distribution assemblies.
Technical Specifications
| Series | SACE Emax |
|---|---|
| ABB order code | 1SDA057291R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker |
| Frame | E2B-A |
| Rated current (In) | 1600 A |
| Rated operational current (Ie) | 1600 A |
| Rated uninterrupted current (Iu) | 1600 A |
| Rating plug | R1600 |
| Number of poles | 3 |
| Current type | AC |
| Rated voltage | 600 V |
| Trip unit | PR122/P-LSIG |
| Release type | Electronic |
| Protection functions | Long-time, short-time, instantaneous and earth-fault (LSIG) |
| Instantaneous setting reference | 24000 A |
| Service short-circuit breaking capacity (Ics) at 240 V AC | 42 kA |
| Service short-circuit breaking capacity (Ics) at 480 V AC | 42 kA |
| Service short-circuit breaking capacity (Ics) at 600 V AC | 42 kA |
| Installation version | Fixed |
| Terminal connection | Rear flat horizontal |
| Standard | UL 1066 |
| EAN | 8015644595548 |
Frequently Asked Questions
What is the ABB 1SDA057291R1 used for?
It is a 1600 A three-pole fixed SACE Emax air circuit breaker designed for switching and protecting high-current low-voltage electrical distribution systems.
What trip unit is fitted to the ABB E2B-A 1600?
This model is fitted with the ABB PR122/P-LSIG electronic overcurrent release, providing long-time, short-time, instantaneous and earth-fault protection.
What is the rated current of 1SDA057291R1?
The circuit breaker has a rated current of 1600 A and uses an R1600 rating plug.
What is the short-circuit breaking capacity of the ABB E2B-A 1600?
This configuration has a service short-circuit breaking capacity of 42 kA at 240, 480 and 600 V AC.
Is the ABB 1SDA057291R1 fixed or withdrawable?
This model is supplied in a fixed configuration with horizontal rear terminals for permanent installation within compatible low-voltage switchgear.
Trusted by Power Distribution Professionals Worldwide
ABB SACE Emax air circuit breakers are engineered for dependable switching and protection in demanding low-voltage power distribution systems, combining robust construction with advanced electronic trip units for accurate and coordinated circuit protection.
