1SDA059305R1 ABB E2S1000 PR121/P-LSI 1000A 3-Pole Fixed Air Circuit Breaker

1SDA059305R1 ABB E2S1000 PR121/P-LSI 1000A 3-Pole Fixed Air Circuit Breaker

ABB 1SDA059305R1 is a SACE Emax E2S 1000 A three-pole fixed air circuit breaker with a PR121/P-LSI R1000 electronic overcurrent release providing long-time, short-time and instantaneous protection.

SKU: 1SDA059305R1MPN: 1SDA059305R1
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Why Choose the ABB E2S1000 PR121/P-LSI 1000A 3-Pole Fixed Circuit Breaker?

The ABB E2S1000 PR121/P-LSI, order code 1SDA059305R1, is a high-performance SACE Emax air circuit breaker designed for protection and switching in demanding low-voltage electrical distribution systems. Part of the proven ABB SACE Emax E2S series, this three-pole fixed circuit breaker has a rated current of 1000 A and incorporates the PR121/P-LSI R1000 electronic overcurrent release.

The PR121/P-LSI protection unit provides long-time, short-time and instantaneous overcurrent protection, helping safeguard electrical installations against overloads and short circuits. The E2S performance class is intended for applications requiring strong short-circuit capability, making this breaker well suited to industrial switchboards, distribution assemblies and infrastructure power systems.

This version is a three-pole fixed circuit breaker. Its fixed construction provides a robust solution for permanent installation within compatible low-voltage switchgear where reliable protection, switching performance and straightforward system integration are required.

Key Advantages

  • Heavy-duty ABB SACE Emax air circuit breaker for low-voltage power distribution.
  • 1000 A rated current for high-current electrical installations.
  • Three-pole configuration suitable for three-phase distribution systems.
  • PR121/P-LSI electronic overcurrent release for dependable circuit protection.
  • LSI functionality provides long-time, short-time and instantaneous protection.
  • E2S performance class for installations requiring high short-circuit capability.
  • Fixed construction for robust switchboard integration.

Key Features

  • ABB SACE Emax E2S air circuit breaker platform.
  • 1000 A rated current.
  • 3-pole configuration.
  • PR121/P-LSI R1000 electronic overcurrent release.
  • Long-time L overload protection.
  • Short-time S short-circuit protection.
  • Instantaneous I short-circuit protection.
  • Fixed circuit-breaker execution.
  • Designed for demanding low-voltage distribution applications.
  • Part of the established ABB SACE Emax circuit-breaker range.

Reliable Protection for Low-Voltage Power Distribution

ABB SACE Emax air circuit breakers are engineered to provide dependable switching and protection for high-current low-voltage distribution circuits. The PR121/P electronic trip unit monitors circuit current and initiates breaker operation when configured protection thresholds are exceeded, helping protect cables, busbars and connected electrical equipment.

The LSI protection configuration combines long-time overload protection with short-time and instantaneous short-circuit protection. Together with the E2S performance class and three-pole fixed construction, the E2S1000 provides a robust solution for switchboards requiring dependable electronic protection and high-current switching.

Typical Applications

  • Industrial low-voltage distribution switchboards.
  • Main and secondary electrical distribution systems.
  • Manufacturing and process plant power systems.
  • Commercial and infrastructure power distribution.
  • High-current industrial distribution assemblies.
  • Fixed switchgear requiring LSI overcurrent protection.

Technical Specifications

Series SACE Emax E2S
ABB order code 1SDA059305R1
ABB product group 310513-New Emax
Product type Air circuit breaker
Rated current 1000 A
Number of poles 3
Trip unit PR121/P-LSI R1000
Release type Electronic
Protection functions L, S, I
Long-time protection Overload protection
Short-time protection Short-circuit protection with time delay
Instantaneous protection Instantaneous short-circuit protection
Execution Fixed
Performance class E2S

Frequently Asked Questions

What is the ABB 1SDA059305R1?

The ABB 1SDA059305R1 is a three-pole 1000 A SACE Emax E2S fixed air circuit breaker equipped with a PR121/P-LSI R1000 electronic overcurrent release.

What is the rated current of the ABB E2S1000?

The E2S1000 has a rated current of 1000 A and is intended for high-current low-voltage power distribution applications.

What protection functions does the PR121/P-LSI provide?

The PR121/P-LSI provides long-time overload, short-time short-circuit and instantaneous short-circuit protection, represented by the L, S and I functions.

Is ABB 1SDA059305R1 fixed or withdrawable?

The 1SDA059305R1 is a fixed three-pole air circuit breaker designed for permanent installation in compatible low-voltage switchgear.

What applications is the ABB E2S1000 suitable for?

The E2S1000 is suitable for industrial switchboards, main and secondary distribution systems, manufacturing facilities, infrastructure installations and other high-current low-voltage distribution applications.

Trusted ABB Power Distribution Technology

ABB SACE Emax air circuit breakers provide dependable protection and switching for demanding low-voltage power distribution systems, combining electronic overcurrent protection with robust construction and proven industrial performance.