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1SDA057323R1 ABB E2N-A 1200 PR122/P-LSIG 1200A 3P Fixed Air Circuit Breaker
ABB 1SDA057323R1 E2N-A 1200 PR122/P-LSIG is a 1200 A three-pole fixed SACE Emax air circuit breaker with rear horizontal terminals and LSIG electronic protection for high-current low-voltage power distribution systems.
£8,378.45
Why Choose the ABB E2N-A 1200 PR122/P-LSIG 1200A 3P Fixed Air Circuit Breaker?
The ABB E2N-A 1200 PR122/P-LSIG, order code 1SDA057323R1, 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 E2N-A circuit breaker has a rated current of 1200 A and incorporates ABB's advanced PR122/P-LSIG electronic overcurrent release.
Part of the ABB SACE Emax range, the E2N-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 rear horizontal terminals and uses an R1200 rating plug with an 18,000 A instantaneous setting reference. Designed for UL applications, it is also fitted with four auxiliary contacts and circuit-breaker open/closed position indication for integration with switchboard signalling and control systems.
Key Advantages
- High-performance 1200 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 for comprehensive circuit protection.
- LSIG functions provide long-time, short-time, instantaneous and earth-fault protection.
- Fixed design with rear horizontal terminals for permanent switchboard installation.
- Four auxiliary contacts and open/closed position indication support remote signalling and monitoring.
Key Features
- ABB SACE Emax E2N-A series.
- 1200 A rated current.
- Three-pole construction.
- PR122/P-LSIG electronic overcurrent release.
- Long-time, short-time, instantaneous and earth-fault protection functions.
- R1200 rating plug.
- 18,000 A instantaneous setting reference.
- Fixed installation with rear horizontal terminals.
- Four auxiliary contacts.
- Open/closed circuit-breaker position indication.
- UL configuration for compatible low-voltage switchgear.
Advanced Protection for High-Current Power Distribution
Air circuit breakers such as the ABB SACE Emax E2N-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 comprehensive electronic protection suited to selective and coordinated electrical distribution systems. Combined with the robust fixed SACE Emax architecture, this makes the E2N-A particularly suitable for main incoming and feeder applications where dependable protection and accurate fault response are essential.
Typical Applications
- Low-voltage power distribution switchboards.
- Industrial electrical distribution systems.
- Main incoming circuit protection.
- High-current feeder protection.
- Commercial and infrastructure electrical systems.
- UL-configured switchgear and distribution assemblies.
Technical Specifications
| Series | SACE Emax |
|---|---|
| ABB order code | 1SDA057323R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker |
| Frame | E2N-A |
| Rated current (In) | 1200 A |
| Rating plug | R1200 |
| Number of poles | 3 |
| Current type | AC |
| Trip unit | PR122/P-LSIG |
| Release type | Electronic |
| Protection functions | Long-time, short-time, instantaneous and earth-fault (LSIG) |
| Instantaneous setting reference | 18000 A |
| Installation version | Fixed |
| Terminal configuration | Rear horizontal |
| Auxiliary contacts | 4 |
| Position indication | Open / closed |
| Product net width | 296 mm |
| Product net height | 418 mm |
| Product net depth | 302 mm |
| Net weight | 45 kg |
| Power loss at rated operating conditions | 65 W per pole |
| Mechanical durability | 20,000 cycles |
| EAN | 8015644595869 |
Frequently Asked Questions
What is the ABB 1SDA057323R1 used for?
It is a 1200 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 E2N-A 1200?
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 1SDA057323R1?
The circuit breaker has a rated current of 1200 A and uses an R1200 rating plug.
What terminals are fitted to the ABB E2N-A 1200?
This fixed version is equipped with rear horizontal terminals for connection within compatible low-voltage switchgear.
Is the ABB 1SDA057323R1 fixed or withdrawable?
This model is supplied in a fixed configuration and includes four auxiliary contacts plus open/closed circuit-breaker position indication.
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.
