Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
1SDA057331R1 ABB E2N-A 1200 PR123/P-LSIG 1200A 3-Pole Fixed Air Circuit Breaker
ABB 1SDA057331R1 E2N-A 1200 PR123/P-LSIG is a 1200 A three-pole fixed SACE Emax air circuit breaker with rear horizontal terminals and an R1200 PR123/P electronic release providing LSIG overcurrent and earth-fault protection.
£12,893.15
Why Choose the ABB E2N-A 1200 PR123/P-LSIG 1200A 3-Pole Fixed Air Circuit Breaker?
The ABB E2N-A 1200 PR123/P-LSIG, order code 1SDA057331R1, is a SACE Emax air circuit breaker designed for demanding low-voltage power distribution and circuit protection applications. This E2N-A configuration combines a 1200 A rated current, three-pole construction and fixed execution with ABB's advanced PR123/P electronic overcurrent protection technology.
The breaker is equipped with a PR123/P-LSIG R1200 electronic overcurrent release, providing long-time, short-time, instantaneous and earth-fault protection functions. This comprehensive LSIG protection arrangement helps safeguard distribution circuits against sustained overloads, short-circuit faults and earth faults while supporting coordinated protection within complex electrical distribution networks.
This UL configuration features fixed execution with rear horizontal terminals and an 18000 A instantaneous setting. Four auxiliary contacts and open/closed circuit-breaker position indication support integration with switchgear monitoring and control systems, making the unit suitable for substantial industrial, commercial and infrastructure distribution duties.
Key Advantages
- 1200 A SACE Emax air circuit breaker for substantial low-voltage power distribution duties.
- Three-pole construction suited to three-phase electrical distribution systems.
- PR123/P-LSIG electronic release provides comprehensive overcurrent and earth-fault protection.
- Fixed execution with rear horizontal terminals supports permanent switchboard installation.
- R1200 release with 18000 A instantaneous setting for this specific configuration.
- Four auxiliary contacts and open/closed position indication support switchgear monitoring and control.
Key Features
- ABB SACE Emax E2N-A series.
- 1200 A rated current.
- Three-pole configuration.
- Fixed circuit-breaker execution.
- Rear horizontal terminals.
- PR123/P electronic overcurrent release.
- LSIG protection functions: long-time, short-time, instantaneous and earth-fault.
- R1200 release rating.
- 18000 A instantaneous setting.
- Four auxiliary contacts with open/closed circuit-breaker position indication.
Reliable LSIG Protection for High-Current Power Distribution
The ABB SACE Emax E2N-A provides switching, isolation and advanced electronic circuit protection for substantial low-voltage distribution systems. Its 1200 A rating, fixed three-pole architecture and rear horizontal terminals make it suitable for permanent installation on important three-phase incomer and feeder circuits.
The PR123/P-LSIG electronic release provides long-time protection against sustained overload conditions, short-time protection for short-circuit faults, instantaneous protection against severe fault currents and earth-fault protection. This combination provides comprehensive protection for distribution systems requiring coordinated electronic protection across a broad range of fault conditions.
Typical Applications
- Main low-voltage electrical distribution switchboards.
- Industrial manufacturing and process plants.
- High-current incomer and feeder circuit protection.
- Transformer-fed low-voltage distribution systems.
- Large commercial and infrastructure power distribution.
- Fixed three-phase switchgear requiring comprehensive electronic LSIG protection.
Technical Specifications
| Series | SACE Emax E2N-A |
|---|---|
| ABB order code | 1SDA057331R1 |
| Product type | Air circuit breaker |
| Frame | E2 |
| Performance class | N-A |
| Rated current | 1200 A |
| Number of poles | 3 |
| Execution | Fixed |
| Terminal arrangement | Rear horizontal |
| Trip unit | PR123/P-LSIG |
| Release type | Electronic overcurrent release |
| Protection functions | LSIG – long-time, short-time, instantaneous and earth-fault |
| Release rating | R1200 |
| Instantaneous setting | 18000 A |
| Auxiliary contacts | 4 |
| Circuit-breaker position indication | Open / closed |
| Configuration | UL |
| Net weight | 45 kg |
| EAN | 8015644595944 |
| ABB product group | 310513-New Emax |
Frequently Asked Questions
What is the ABB 1SDA057331R1?
The ABB 1SDA057331R1 is an E2N-A 1200 SACE Emax three-pole fixed air circuit breaker rated at 1200 A, with rear horizontal terminals and a PR123/P-LSIG R1200 electronic overcurrent release.
What is the rated current of the E2N-A 1200 PR123/P-LSIG?
The ABB E2N-A 1200 PR123/P-LSIG has a rated current of 1200 A and uses an R1200-rated PR123/P electronic overcurrent release.
What protection functions does the PR123/P-LSIG provide?
The PR123/P-LSIG provides long-time overload protection, short-time short-circuit protection, instantaneous short-circuit protection and earth-fault protection.
Is ABB 1SDA057331R1 fixed or withdrawable?
The ABB 1SDA057331R1 is a fixed air circuit breaker with rear horizontal terminals for permanent installation within compatible SACE Emax switchgear.
How many poles does ABB 1SDA057331R1 have?
The ABB 1SDA057331R1 has a three-pole configuration suitable for three-phase low-voltage power distribution systems.
What instantaneous setting is specified for ABB 1SDA057331R1?
The E2N-A 1200 PR123/P-LSIG configuration is specified with an instantaneous setting of 18000 A and an R1200 electronic overcurrent release.
Trusted by Electrical Engineers Worldwide
ABB SACE Emax air circuit breakers are engineered for demanding low-voltage power distribution applications, combining high current capability, advanced electronic protection and dependable switching performance for industrial, commercial and infrastructure installations.
