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1SDA059279R1 ABB E2N 1000 PR122/P-LSIG 1000A 4P Fixed Air Circuit Breaker
ABB 1SDA059279R1 SACE Emax E2N 1000 four-pole fixed air circuit breaker rated at 1000 A with rear horizontal terminals and a PR122/P-LSIG electronic release for overload, short-circuit and earth-fault protection.
£11,066.54
Why Choose the ABB E2N 1000 PR122/P-LSIG 1000A 4P Fixed Air Circuit Breaker?
The ABB 1SDA059279R1 is a high-performance SACE Emax E2N air circuit breaker designed for protection and switching in demanding low-voltage power distribution systems. This configuration combines a 1000 A rated current, four-pole construction and fixed installation with the advanced PR122/P-LSIG electronic overcurrent release.
Part of the ABB SACE Emax family, the E2N 1000 provides comprehensive protection for industrial, commercial and infrastructure distribution systems. The PR122/P-LSIG release provides long-time, short-time, instantaneous and earth-fault protection functions, enabling the breaker to respond to overloads, short circuits and ground-fault conditions while supporting selective protection strategies.
This model is a four-pole fixed circuit breaker with rear flat horizontal terminals. It has a rated uninterrupted current of 1000 A, a rated operational voltage of 690 V AC and a rated ultimate short-circuit breaking capacity of 65 kA at 400/415 V AC, making it suitable for robust low-voltage switchboards and high-current power distribution assemblies.
Key Advantages
- High-capacity 1000 A SACE Emax air circuit breaker for low-voltage distribution.
- PR122/P-LSIG electronic trip unit provides comprehensive overload, short-circuit and earth-fault protection.
- 65 kA ultimate breaking capacity at 400/415 V AC for demanding fault conditions.
- Four-pole construction provides switching and protection across four conductors.
- Fixed construction provides a robust solution for permanent switchboard installations.
- Rear flat horizontal terminals support integration into power distribution assemblies.
- Four auxiliary contacts and open/closed position indication support circuit-breaker monitoring.
Key Features
- ABB SACE Emax E2N frame.
- 1000 A rated current.
- Four-pole construction.
- Fixed (F) circuit-breaker version.
- PR122/P-LSIG electronic release.
- Long-time overload protection.
- Short-time short-circuit protection.
- Instantaneous short-circuit protection.
- Integrated earth-fault protection.
- 690 V AC rated operational voltage.
- 1000 V rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- 65 kA Icu at 400/415 V AC.
- 55 kA short-time withstand current for 1 s.
- Rear flat horizontal main terminals.
Reliable LSIG Protection for High-Current Power Distribution
Air circuit breakers such as the ABB SACE Emax E2N provide switching and protection at the heart of low-voltage distribution systems. The electronic trip unit continuously monitors current and initiates circuit interruption when configured protection thresholds are exceeded, helping protect conductors, switchgear and connected equipment against damaging electrical faults.
The PR122/P-LSIG release fitted to this E2N 1000 combines long-time overload, short-time and instantaneous short-circuit protection with integrated earth-fault protection. Together with the breaker's 65 kA breaking capacity at 400/415 V AC, four-pole configuration and fixed construction, this makes 1SDA059279R1 well suited to main and feeder protection duties in demanding power distribution systems.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Main incoming and feeder circuit protection.
- Four-pole distribution systems requiring neutral switching.
- Manufacturing and process plant electrical systems.
- Commercial and infrastructure power distribution.
- Generator and transformer secondary distribution systems.
Technical Specifications
| Series | SACE Emax |
|---|---|
| ABB order code | 1SDA059279R1 |
| Product type | Air circuit breaker |
| Frame / sub-type | E2N |
| Short-circuit performance level | N |
| Rated current (In) | 1000 A |
| Rated uninterrupted current (Iu) | 1000 A |
| Number of poles | 4 |
| Version | Fixed (F) |
| Trip unit | PR122/P-LSIG electronic release |
| Protection functions | Long-time, short-time, instantaneous and earth fault |
| Overload release adjustment range | 400–1000 A |
| Short-time short-circuit release adjustment range | 600–10000 A |
| Instantaneous short-circuit release adjustment range | 1500–15000 A |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Rated ultimate short-circuit breaking capacity (Icu) at 400/415 V AC | 65 kA |
| Rated service short-circuit breaking capacity (Ics) at 400/415 V AC | 65 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 690 V AC | 55 kA |
| Rated short-time withstand current (Icw), 1 s | 55 kA |
| Rated short-time withstand current (Icw), 3 s | 42 kA |
| Terminal arrangement | Rear flat horizontal |
| Auxiliary contacts | 4 |
| Position indication | Open / closed |
| Protection rating | IP2X |
| Motor drive | Optional |
| Power loss | 44.8 W |
| Electrical durability | 15,000 cycles |
| Mechanical durability | 25,000 cycles |
| Product net weight | 68 kg |
| EAN | 8015644616403 |
| Standard | IEC |
Frequently Asked Questions
What is the ABB 1SDA059279R1?
The ABB 1SDA059279R1 is an E2N 1000 SACE Emax air circuit breaker rated at 1000 A, with four poles, fixed construction, rear horizontal terminals and a PR122/P-LSIG electronic protection release.
What protection functions does the PR122/P-LSIG trip unit provide?
The PR122/P-LSIG electronic release provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection.
What is the breaking capacity of the ABB E2N 1000?
This E2N configuration has a rated ultimate short-circuit breaking capacity of 65 kA at 400/415 V AC and 55 kA at 690 V AC.
Is ABB 1SDA059279R1 fixed or withdrawable?
ABB 1SDA059279R1 is the fixed (F) version of the E2N 1000 and is equipped with rear flat horizontal main terminals.
Where is the ABB E2N 1000 PR122/P-LSIG typically used?
It is typically used in industrial, commercial and infrastructure low-voltage switchboards for main incomer, feeder and high-current distribution protection where overload, short-circuit and earth-fault protection are required.
Trusted ABB Protection for Power Distribution
ABB SACE Emax air circuit breakers are engineered for dependable protection and switching in demanding low-voltage power distribution systems, combining high breaking performance with advanced electronic protection for industrial and infrastructure applications.
