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1SDA057437R1 ABB E3S-A 1200 PR121/P-LSI 1200 A 3-Pole Withdrawable Air Circuit Breaker
ABB 1SDA057437R1 E3S-A 1200 PR121/P-LSI is a 1200 A three-pole SACE Emax withdrawable air circuit breaker moving part with a PR121/P-LSI electronic overcurrent release providing LSI protection for low-voltage AC power distribution systems.
£8,182.90
Why Choose the ABB E3S-A 1200 PR121/P-LSI Air Circuit Breaker?
The ABB E3S-A 1200 PR121/P-LSI, order code 1SDA057437R1, is a SACE Emax withdrawable air circuit breaker moving part designed for switching and protection in high-current low-voltage AC power distribution systems. This three-pole configuration has a rated current of 1200 A and incorporates the PR121/P-LSI electronic overcurrent release.
As part of the ABB SACE Emax E3S-A series, the 1SDA057437R1 combines robust power switching with electronic protection against overload and short-circuit conditions. The PR121/P-LSI release provides long-time, short-time and instantaneous protection functions, giving the breaker comprehensive LSI protection for demanding industrial and commercial electrical distribution systems.
This specific configuration is a three-pole withdrawable moving part rated at 1200 A. Its withdrawable construction is particularly suited to switchgear installations where ease of inspection, servicing and circuit-breaker replacement is important while maintaining a flexible power distribution architecture.
Key Advantages
- High-performance 1200 A SACE Emax air circuit breaker for low-voltage distribution systems.
- PR121/P-LSI electronic overcurrent release provides comprehensive LSI protection.
- Three-pole configuration for three-phase AC power distribution.
- Withdrawable moving-part design supports convenient inspection and maintenance.
- E3S performance level supports demanding industrial and commercial distribution applications.
- ABB SACE Emax construction provides dependable integration into compatible low-voltage switchgear.
Key Features
- ABB SACE Emax E3S-A circuit breaker family.
- 1200 A rated current.
- Three-pole construction.
- PR121/P-LSI electronic overcurrent release.
- Long-time, short-time and instantaneous protection functions.
- LSI overcurrent protection for coordinated electrical distribution.
- Withdrawable moving-part configuration.
- Designed for high-current low-voltage AC power distribution.
Reliable Circuit Protection for Power Distribution
Air circuit breakers such as the ABB SACE Emax E3S-A provide switching, isolation and overcurrent protection for high-current low-voltage electrical distribution systems. The electronic trip release monitors current conditions and operates the breaker when configured protection thresholds are exceeded, helping protect cables, busbars and connected equipment against overload and short-circuit currents.
The PR121/P-LSI release provides long-time, short-time and instantaneous protection functions, while the withdrawable construction enables the breaker moving part to be disconnected from compatible switchgear for servicing or replacement. This combination makes the 1SDA057437R1 particularly suitable for power distribution systems where dependable protection and maintainability are important.
Typical Applications
- Industrial low-voltage power distribution systems.
- Withdrawable main switchboards and distribution boards.
- Manufacturing plant electrical distribution.
- Commercial and infrastructure power systems.
- Protection of high-current feeders and busbar systems.
- Power distribution installations requiring electronic LSI protection.
Technical Specifications
| Series | SACE Emax |
|---|---|
| ABB order code | 1SDA057437R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker moving part |
| Frame | E3S-A |
| Rated current | 1200 A |
| Number of poles | 3 |
| Trip unit | PR121/P-LSI |
| Release type | Electronic |
| Protection functions | Long-time, short-time and instantaneous (LSI) |
| Mounting configuration | Withdrawable moving part |
| Application | Low-voltage AC power distribution |
Frequently Asked Questions
What is the ABB 1SDA057437R1?
The ABB 1SDA057437R1 is an E3S-A SACE Emax three-pole withdrawable air circuit breaker moving part rated at 1200 A and equipped with a PR121/P-LSI electronic overcurrent release.
What is the rated current of the ABB E3S-A 1200 PR121/P-LSI?
The 1SDA057437R1 has a rated current of 1200 A for high-current low-voltage power distribution applications.
What protection functions does the PR121/P-LSI release provide?
The PR121/P-LSI electronic release provides long-time, short-time and instantaneous overcurrent protection functions, collectively known as LSI protection.
Is ABB 1SDA057437R1 a fixed or withdrawable circuit breaker?
The 1SDA057437R1 is a withdrawable moving-part configuration intended for use with compatible ABB SACE Emax withdrawable switchgear.
How many poles does the ABB 1SDA057437R1 have?
The 1SDA057437R1 has three poles for use in three-phase low-voltage AC power distribution systems.
Where is the ABB E3S-A 1200 PR121/P-LSI typically used?
It is typically used in industrial and commercial switchboards, main distribution systems, high-current feeders and other low-voltage installations requiring 1200 A withdrawable circuit protection.
Trusted by Power Distribution Professionals Worldwide
ABB SACE Emax air circuit breakers are widely used in demanding low-voltage power distribution systems, combining robust switching performance, electronic circuit protection and flexible integration into industrial and commercial switchgear.
