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1SDA059391R1 ABB E3S 1000 PR121/P-LSI 1000 A 4-Pole Air Circuit Breaker
ABB 1SDA059391R1 is a SACE Emax E3S 1000 A four-pole fixed air circuit breaker with rear horizontal terminals and a PR121/P-LSI electronic overcurrent protection release.
£10,592.63
Why Choose the ABB 1SDA059391R1 E3S 1000 Air Circuit Breaker?
The ABB 1SDA059391R1 is a high-performance SACE Emax E3S air circuit breaker designed for dependable protection and switching of low-voltage electrical distribution systems. Configured as an E3S 1000 PR121/P-LSI, this four-pole fixed circuit breaker combines a 1000 A rated current with ABB's electronic PR121/P-LSI overcurrent protection.
As part of the ABB SACE Emax range, the breaker provides long-time, short-time and instantaneous overcurrent protection for demanding industrial and commercial power distribution applications. Its electronic protection unit provides adjustable protection characteristics to help coordinate the breaker with downstream and upstream electrical equipment.
The 1SDA059391R1 is a four-pole fixed-version circuit breaker with rear horizontal terminals and a PR121/P-LSI R1000 release. It is rated for 1000 A continuous current and 690 V AC, with an E3S short-circuit performance level of up to 75 kA. The assembly also incorporates four auxiliary changeover contacts and open/closed circuit-breaker position indication.
Key Advantages
- Heavy-duty ABB SACE Emax air circuit breaker for low-voltage power distribution.
- 1000 A rated current for high-current electrical installations.
- Four-pole configuration for switching and protecting four-conductor systems.
- Electronic PR121/P-LSI protection release with long-time, short-time and instantaneous protection.
- 75 kA short-circuit breaking capacity at 400 V AC.
- Fixed construction with rear horizontal terminals for switchboard installation.
Key Features
- ABB SACE Emax E3S circuit breaker platform.
- 1000 A rated uninterrupted current.
- Four-pole fixed configuration.
- 690 V AC rated voltage.
- PR121/P-LSI R1000 electronic overcurrent release.
- LSI protection functions for overload, selective short-circuit and instantaneous short-circuit protection.
- Rear horizontal main terminals.
- Four auxiliary changeover contacts with open/closed position indication.
- Optional motor operating mechanism capability.
Reliable Protection for Low-Voltage Distribution Systems
Air circuit breakers such as the ABB SACE Emax E3S provide switching, isolation and overcurrent protection for high-current low-voltage circuits. Their high breaking capacity makes them particularly suitable for main distribution boards, industrial switchboards and other installations where substantial prospective short-circuit currents can occur.
The PR121/P-LSI electronic trip unit provides long-time overload, short-time selective and instantaneous short-circuit protection. Adjustable protection settings allow the breaker to be coordinated with the characteristics of the electrical installation while maintaining reliable protection of conductors and connected equipment.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Commercial and infrastructure electrical installations.
- Transformer secondary and incoming feeder protection.
- High-current feeder and distribution circuit protection.
- Electrical control and switchgear assemblies.
Technical Specifications
| Series | SACE Emax E3 |
|---|---|
| ABB order code / MPN | 1SDA059391R1 |
| Product type | Air circuit breaker |
| Frame / performance version | E3S |
| Rated uninterrupted current (Iu) | 1000 A |
| Rated voltage | 690 V AC |
| Number of poles | 4 |
| Installation | Fixed |
| Terminal arrangement | Rear horizontal |
| Protection release | PR121/P-LSI R1000 |
| Protection functions | LSI (long-time, short-time and instantaneous) |
| Overload release setting range | 400–1000 A |
| Short-time short-circuit setting range | 1000–10000 A |
| Instantaneous short-circuit setting range | 1500–15000 A |
| Rated ultimate short-circuit breaking capacity (Icu) at 400 V AC | 75 kA |
| Rated short-time withstand current (Icw), 1 s | 75 kA |
| Rated short-time withstand current (Icw), 3 s | 65 kA |
| Auxiliary contacts | 4 changeover contacts |
| Motor drive | Optional |
| EAN | 8015644617523 |
Frequently Asked Questions
What is the ABB 1SDA059391R1 used for?
It is a SACE Emax E3S air circuit breaker designed for switching and overcurrent protection in high-current low-voltage electrical distribution systems.
What is the rated current of the ABB 1SDA059391R1?
The circuit breaker has a rated uninterrupted current of 1000 A.
Which protection release is fitted to this circuit breaker?
The breaker is fitted with an electronic PR121/P-LSI R1000 overcurrent release providing long-time, short-time and instantaneous protection functions.
Is the ABB 1SDA059391R1 fixed or withdrawable?
This model is a fixed four-pole circuit breaker equipped with rear horizontal main terminals.
What is the short-circuit breaking capacity?
The E3S version provides a rated ultimate short-circuit breaking capacity of 75 kA at 400 V AC.
Trusted ABB Power Distribution Technology
ABB SACE Emax air circuit breakers are engineered for reliable switching and protection in demanding low-voltage distribution systems, combining high current capacity with configurable electronic protection for industrial and commercial switchgear.
