1SDA055829R1 ABB E2B 2000 PR122/P-LSIG 2000A 3-Pole Fixed Air Circuit Breaker

1SDA055829R1 ABB E2B 2000 PR122/P-LSIG 2000A 3-Pole Fixed Air Circuit Breaker

ABB 1SDA055829R1 is a SACE Emax E2B 2000 A three-pole fixed air circuit breaker with a PR122/P-LSIG electronic overcurrent release for comprehensive high-current low-voltage power distribution protection.

SKU: 1SDA055829R1MPN: 1SDA055829R1
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Why Choose the ABB 1SDA055829R1 E2B 2000 Air Circuit Breaker?

The ABB 1SDA055829R1 is a high-performance SACE Emax E2B 2000 air circuit breaker (ACB) designed for protection and switching in high-current low-voltage power distribution systems. This three-pole fixed circuit breaker combines a 2000 A rated current with ABB's advanced PR122/P-LSIG electronic overcurrent release, providing comprehensive protection for demanding industrial and commercial electrical installations.

As part of the ABB SACE Emax circuit breaker range, the E2B 2000 is engineered for dependable protection of distribution networks, switchboards, transformers and high-current feeders. The PR122/P-LSIG release provides long-time, short-time, instantaneous and earth-fault protection functions, allowing the breaker to respond to overloads, short circuits and earth faults while supporting selective protection schemes.

This model is supplied in a three-pole fixed configuration with a rated current of 2000 A. Its fixed construction is intended for permanent integration into suitable low-voltage switchgear, providing a robust solution for main incoming, feeder and distribution circuit protection where reliable high-current switching and comprehensive LSIG protection are required.

Key Advantages

  • High-capacity 2000 A air circuit breaker for low-voltage power distribution.
  • Three-pole configuration designed for three-phase electrical systems.
  • Advanced PR122/P-LSIG electronic overcurrent release.
  • LSIG functionality provides long-time, short-time, instantaneous and earth-fault protection.
  • Fixed construction for permanent switchboard installation.
  • Part of the established ABB SACE Emax air circuit breaker platform.

Key Features

  • ABB SACE Emax E2B 2000 circuit breaker.
  • 2000 A rated current.
  • Three-pole circuit breaker configuration.
  • Fixed (F) version.
  • PR122/P-LSIG electronic trip unit.
  • Long-time overload protection.
  • Short-time and instantaneous short-circuit protection.
  • Integrated earth-fault protection.
  • Designed for high-current low-voltage distribution and switchboard applications.

Reliable Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E2B provide switching, isolation and automatic overcurrent protection for high-current low-voltage distribution circuits. The electronic trip unit monitors electrical conditions and initiates breaker operation when configured protection thresholds are exceeded, helping protect switchgear, conductors and connected equipment from damaging fault currents.

The PR122/P-LSIG release gives this E2B 2000 comprehensive protection against overloads, delayed and instantaneous short circuits and earth faults. Combined with its 2000 A rating, three-pole arrangement and fixed construction, the breaker is well suited to demanding industrial and commercial power distribution installations.

Typical Applications

  • Industrial low-voltage switchboards and distribution panels.
  • Main incoming circuit protection.
  • High-current three-phase distribution feeders.
  • Transformer secondary circuit protection.
  • Manufacturing plants and process facilities.
  • Commercial and infrastructure power distribution systems.

Technical Specifications

Series SACE Emax
ABB order code / MPN 1SDA055829R1
ABB product group 310513-New Emax
Product type Air circuit breaker
Frame E2B 2000
Rated current (In) 2000 A
Number of poles 3
Version Fixed (F)
Trip unit PR122/P-LSIG
Protection functions Long-time, short-time, instantaneous and earth-fault (LSIG)

Frequently Asked Questions

What is the ABB 1SDA055829R1?

The ABB 1SDA055829R1 is a SACE Emax E2B 2000 three-pole fixed air circuit breaker rated at 2000 A and equipped with a PR122/P-LSIG electronic overcurrent release.

What protection functions does the PR122/P-LSIG release provide?

The PR122/P-LSIG provides long-time, short-time, instantaneous and earth-fault protection, collectively identified as LSIG protection.

What is the rated current of the ABB 1SDA055829R1?

The circuit breaker has a rated current of 2000 A, making it suitable for high-current low-voltage distribution applications.

How many poles does the ABB 1SDA055829R1 have?

The 1SDA055829R1 is a three-pole air circuit breaker designed for three-phase electrical distribution systems.

Is the ABB 1SDA055829R1 fixed or withdrawable?

This E2B 2000 configuration is a fixed (F) circuit breaker intended for permanent installation within a suitable low-voltage switchboard.

Does the ABB 1SDA055829R1 provide earth-fault protection?

Yes. Its PR122/P-LSIG electronic release includes earth-fault protection in addition to long-time, short-time and instantaneous overcurrent protection.

Trusted by Electrical Professionals Worldwide

ABB SACE Emax air circuit breakers are engineered for dependable switching and protection in demanding low-voltage power distribution systems, supporting industrial, commercial and infrastructure installations where reliable high-current circuit protection is essential.