1SDA055807R1 ABB E2B 1600 PR123/P-LSIG 1600A 4-Pole Fixed Air Circuit Breaker

1SDA055807R1 ABB E2B 1600 PR123/P-LSIG 1600A 4-Pole Fixed Air Circuit Breaker

ABB 1SDA055807R1 is a SACE Emax E2B 1600 A four-pole fixed air circuit breaker with a PR123/P-LSIG electronic overcurrent release for comprehensive low-voltage power distribution protection.

SKU: 1SDA055807R1MPN: 1SDA055807R1
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Why Choose the ABB 1SDA055807R1 E2B 1600 Air Circuit Breaker?

The ABB 1SDA055807R1 is a high-performance SACE Emax E2B 1600 air circuit breaker (ACB) designed for protection and switching in low-voltage power distribution systems. This four-pole fixed circuit breaker combines a 1600 A rated current with ABB's advanced PR123/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 1600 is engineered for dependable protection of distribution networks, switchboards, transformers and high-current electrical equipment. The PR123/P-LSIG release provides long-time, short-time, instantaneous and earth-fault protection functions, allowing sophisticated protection and monitoring of critical low-voltage circuits.

This model is supplied in a four-pole fixed configuration with a rated current of 1600 A. The E2B frame is designed for high-current distribution applications and provides a short-circuit breaking capacity of 42 kA at 415 V AC, making the breaker suitable for robust industrial switchboards and power distribution assemblies.

Key Advantages

  • High-capacity 1600 A air circuit breaker for low-voltage power distribution.
  • Four-pole configuration for comprehensive multi-conductor switching and protection.
  • Advanced PR123/P-LSIG electronic overcurrent release.
  • LSIG functionality provides long-time, short-time, instantaneous and earth-fault protection.
  • 42 kA breaking capacity at 415 V AC for demanding distribution applications.
  • Fixed construction designed for integration into low-voltage switchboards.

Key Features

  • ABB SACE Emax E2B 1600 circuit breaker.
  • 1600 A rated current.
  • Four-pole circuit breaker configuration.
  • Fixed (F) version.
  • PR123/P-LSIG electronic trip unit.
  • Long-time overload protection.
  • Short-time and instantaneous short-circuit protection.
  • Integrated earth-fault protection.
  • 42 kA short-circuit breaking capacity at 415 V AC.

Reliable Protection for Low-Voltage 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 continuously evaluates current conditions and initiates breaker operation when configured protection thresholds are exceeded, helping protect cables, switchgear and connected electrical equipment.

The PR123/P-LSIG release gives this E2B 1600 comprehensive protection against overloads, delayed and instantaneous short circuits and earth faults. Its advanced electronic protection capabilities and four-pole fixed construction make the breaker particularly suitable for critical industrial and commercial power distribution systems.

Typical Applications

  • Industrial low-voltage switchboards and distribution panels.
  • Main incoming circuit protection.
  • Commercial and industrial power distribution systems.
  • Transformer secondary and feeder protection.
  • Manufacturing plants and process facilities.
  • Infrastructure and high-current electrical installations.

Technical Specifications

Series SACE Emax
ABB order code / MPN 1SDA055807R1
ABB product group 310513-New Emax
Product type Air circuit breaker
Frame E2B 1600
Rated current (In) 1600 A
Number of poles 4
Version Fixed (F)
Trip unit PR123/P-LSIG
Protection functions Long-time, short-time, instantaneous and earth-fault (LSIG)
Ultimate short-circuit breaking capacity (Icu) at 415 V AC 42 kA
Short-time withstand current (Icw), 1 s 42 kA

Frequently Asked Questions

What is the ABB 1SDA055807R1?

The ABB 1SDA055807R1 is a SACE Emax E2B 1600 four-pole fixed air circuit breaker rated at 1600 A and equipped with a PR123/P-LSIG electronic overcurrent release.

What protection functions does the PR123/P-LSIG release provide?

The PR123/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 1SDA055807R1?

The circuit breaker has a rated current of 1600 A.

How many poles does the ABB 1SDA055807R1 have?

The 1SDA055807R1 is a four-pole air circuit breaker, making it suitable for applications requiring four-pole switching and protection.

Is the ABB 1SDA055807R1 fixed or withdrawable?

This particular E2B 1600 configuration is a fixed (F) circuit breaker designed for permanent installation within a suitable low-voltage switchboard assembly.

What is the breaking capacity of the ABB E2B 1600?

The E2B frame provides an ultimate short-circuit breaking capacity of 42 kA at 415 V AC.

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 applications where reliable circuit protection is essential.