1SDA055896R1 ABB E2N 1600 PR121/P-LI 1600A 4-Pole Fixed Air Circuit Breaker

1SDA055896R1 ABB E2N 1600 PR121/P-LI 1600A 4-Pole Fixed Air Circuit Breaker

ABB 1SDA055896R1 is a SACE Emax E2N 1600 A four-pole fixed air circuit breaker with horizontal rear terminals and a PR121/P-LI electronic overcurrent release for high-current low-voltage power distribution protection.

SKU: 1SDA055896R1MPN: 1SDA055896R1
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Why Choose the ABB 1SDA055896R1 E2N 1600 Air Circuit Breaker?

The ABB 1SDA055896R1 is a SACE Emax E2N 1600 air circuit breaker (ACB) designed for dependable switching and protection in high-current low-voltage power distribution systems. This four-pole fixed circuit breaker combines a 1600 A rated current with an ABB PR121/P-LI electronic overcurrent release, providing long-time overload and instantaneous short-circuit protection.

As part of the ABB SACE Emax range, the E2N 1600 is engineered for demanding industrial, commercial and infrastructure distribution systems. Its four-pole construction enables switching and protection of all four conductors in appropriate three-phase networks, while the fixed configuration provides permanent installation within suitable low-voltage switchgear.

The E2N 1600 performance level provides a rated uninterrupted current of 1600 A at 40 °C, an ultimate short-circuit breaking capacity of 65 kA at 415 V AC and a short-time withstand current of 55 kA for 1 s. This fixed version uses horizontal rear terminals for integration into compatible switchboard assemblies.

Key Advantages

  • High-capacity 1600 A air circuit breaker for low-voltage power distribution.
  • Four-pole configuration for applications requiring four-conductor switching and protection.
  • Fixed (F) construction for permanent switchboard installation.
  • PR121/P-LI electronic overcurrent release for dependable circuit protection.
  • LI functionality provides long-time overload and instantaneous short-circuit protection.
  • 65 kA ultimate short-circuit breaking capacity at 415 V AC for demanding distribution applications.

Key Features

  • ABB SACE Emax E2N 1600 air circuit breaker.
  • 1600 A rated uninterrupted current.
  • Four-pole circuit breaker configuration.
  • Fixed (F) version.
  • PR121/P-LI electronic trip unit.
  • Long-time overload protection.
  • Instantaneous short-circuit protection.
  • 65 kA ultimate short-circuit breaking capacity at 415 V AC.
  • 55 kA short-time withstand current for 1 s.
  • Horizontal rear terminals for main circuit connection.

Reliable Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E2N provide switching, isolation and automatic overcurrent protection for high-current low-voltage distribution circuits. The electronic trip unit monitors current conditions and initiates breaker operation when configured protection thresholds are exceeded, helping protect switchgear, conductors and connected electrical equipment against damaging overload and short-circuit currents.

The PR121/P-LI release provides long-time protection against sustained overload conditions together with instantaneous protection against severe short-circuit currents. Combined with its 1600 A rating, four-pole configuration, fixed construction and E2N short-circuit performance, the ABB 1SDA055896R1 is well suited to demanding low-voltage distribution applications.

Typical Applications

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

Technical Specifications

Series SACE Emax
ABB order code / MPN 1SDA055896R1
ABB product group 310513-New Emax
Product type Air circuit breaker
Frame E2N 1600
Rated current (In) 1600 A
Rated uninterrupted current (Iu) at 40 °C 1600 A
Number of poles 4
Version Fixed (F)
Terminal arrangement Horizontal rear terminals (H/HR)
Trip unit PR121/P-LI
Release type Electronic
Protection functions Long-time and instantaneous (LI)
Ultimate short-circuit breaking capacity (Icu) at 415 V AC 65 kA
Short-time withstand current (Icw), 1 s 55 kA
Short-circuit performance level N

Frequently Asked Questions

What is the ABB 1SDA055896R1?

The ABB 1SDA055896R1 is a SACE Emax E2N 1600 four-pole fixed air circuit breaker rated at 1600 A and equipped with a PR121/P-LI electronic overcurrent release.

What protection functions does the PR121/P-LI release provide?

The PR121/P-LI provides long-time overload protection and instantaneous short-circuit protection, collectively identified as LI protection.

How many poles does the ABB 1SDA055896R1 have?

The ABB 1SDA055896R1 is a four-pole air circuit breaker, making it suitable for appropriate three-phase systems where switching and protection of four conductors is required.

Is the ABB 1SDA055896R1 fixed or withdrawable?

The 1SDA055896R1 is a fixed (F) circuit breaker configured with horizontal rear terminals for permanent integration into suitable low-voltage switchgear.

What is the breaking capacity of the ABB 1SDA055896R1?

The E2N 1600 has an ultimate short-circuit breaking capacity of 65 kA at 415 V AC.

What is the rated current of the ABB 1SDA055896R1?

The circuit breaker has a rated uninterrupted current of 1600 A at 40 °C, making it suitable for high-current low-voltage power distribution applications.

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.