1SDA059173R1 ABB E1B 1000A 3-Pole PR121/P-LSI Fixed Air Circuit Breaker

1SDA059173R1 ABB E1B 1000A 3-Pole PR121/P-LSI Fixed Air Circuit Breaker

ABB 1SDA059173R1 is a SACE Emax E1B 1000 A three-pole fixed air circuit breaker with horizontal rear terminals and a PR121/P-LSI electronic overcurrent release for industrial low-voltage power distribution.

SKU: 1SDA059173R1MPN: 1SDA059173R1
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Why Choose the ABB 1SDA059173R1 E1B 1000 Air Circuit Breaker?

The ABB 1SDA059173R1 is a SACE Emax E1B 1000 air circuit breaker designed for reliable protection and switching in industrial low-voltage power distribution systems. Identified by the extended product type E1B1000PR121/P-LSIIn=1000A3pF, this three-pole fixed circuit breaker has a rated uninterrupted current of 1000 A and is equipped with an ABB PR121/P-LSI electronic overcurrent release.

As part of the ABB SACE Emax / New Emax family, the 1SDA059173R1 combines high-current switching with electronic protection against overload, delayed short-circuit and instantaneous short-circuit conditions. The PR121/P-LSI release provides L, S and I protection functions, allowing the breaker to provide coordinated protection for cables, busbars and downstream electrical equipment.

The fixed-version construction uses horizontal rear terminals for integration into compatible switchboards and power distribution assemblies. With a 1000 A current rating, three-pole configuration and 42 kA ultimate short-circuit breaking capacity at 400 V AC, the E1B 1000 is well suited to demanding industrial distribution and feeder-protection applications.

Key Advantages

  • Genuine ABB SACE Emax E1B air circuit breaker.
  • 1000 A rated uninterrupted current for high-current power distribution.
  • Three-pole configuration for compatible three-phase electrical systems.
  • PR121/P-LSI electronic overcurrent release with long-time, short-time and instantaneous protection.
  • 42 kA ultimate short-circuit breaking capacity at 400 V AC.
  • Fixed installation with horizontal rear terminals for practical switchboard integration.

Key Features

  • ABB SACE Emax E1B 1000 platform.
  • 1000 A rated uninterrupted current.
  • 3-pole configuration.
  • PR121/P-LSI electronic trip unit.
  • Long-time (L), short-time (S) and instantaneous (I) protection functions.
  • 42 kA Icu at 400 V AC, 50 Hz.
  • 400–1000 A overload release adjustment range.
  • 1000–10000 A short-time delayed short-circuit adjustment range.
  • 1500–15000 A instantaneous short-circuit adjustment range.
  • Fixed installation with horizontal rear terminals.
  • Fitted with 4 auxiliary contacts and open/closed position indication.

Reliable Protection for Low-Voltage Power Distribution

Air circuit breakers provide switching, isolation and overcurrent protection for high-current low-voltage distribution systems. The ABB SACE Emax E1B platform combines substantial short-circuit performance with configurable electronic protection, making it suitable for main distribution and feeder applications where dependable protection of cables, busbars and downstream equipment is required.

The PR121/P-LSI release fitted to the 1SDA059173R1 provides long-time overload, short-time delayed short-circuit and instantaneous short-circuit protection. Combined with the breaker's 1000 A current rating, three-pole construction and fixed horizontal-rear-terminal configuration, this provides a robust solution for industrial switchboards and low-voltage power distribution systems.

Typical Applications

  • Industrial low-voltage power distribution systems.
  • Main incoming circuit-breaker applications.
  • High-current feeder protection.
  • Fixed industrial switchboards and distribution boards.
  • Manufacturing and process industry installations.
  • Commercial and infrastructure electrical distribution.
  • Protection of busbars, feeders and downstream electrical equipment.

Technical Specifications

Series SACE Emax / New Emax
ABB product group 310513-New Emax
Order code 1SDA059173R1
Extended product type E1B1000PR121/P-LSIIn=1000A3pF
Product type Air circuit breaker
Frame E1
Performance level B
Rated uninterrupted current Iu 1000 A
Number of poles 3
Trip unit PR121/P-LSI
Trip unit type Electronic overcurrent release
Protection functions L (long-time), S (short-time) and I (instantaneous)
Overload release adjustment range 400–1000 A
Short-time delayed short-circuit adjustment range 1000–10000 A
Instantaneous short-circuit adjustment range 1500–15000 A
Rated ultimate short-circuit breaking capacity Icu at 400 V AC, 50 Hz 42 kA
Installation Fixed
Terminal configuration Horizontal rear terminals
Main circuit connection Busbar connection
Auxiliary contacts 4
Auxiliary contact configuration 2 normally open and 2 normally closed
Position indication Open/closed
Front protection rating IP20
Motor operator Optional
Net weight 50 kg
EAN 8015644615345
HS code 85362090

Frequently Asked Questions

What is the ABB 1SDA059173R1?

The ABB 1SDA059173R1 is a SACE Emax E1B 1000 A three-pole fixed air circuit breaker with horizontal rear terminals and a PR121/P-LSI electronic overcurrent release.

What is the rated current of the ABB 1SDA059173R1?

The circuit breaker has a rated uninterrupted current of 1000 A, making it suitable for high-current industrial low-voltage power distribution applications.

What protection does the PR121/P-LSI trip unit provide?

The PR121/P-LSI electronic release provides long-time overload (L), short-time delayed short-circuit (S) and instantaneous short-circuit (I) protection functions.

What is the breaking capacity of the ABB 1SDA059173R1?

The E1B 1000 has a rated ultimate short-circuit breaking capacity Icu of 42 kA at 400 V AC, 50 Hz.

Is the ABB 1SDA059173R1 fixed or withdrawable?

The 1SDA059173R1 is a fixed-version air circuit breaker with horizontal rear terminals for integration into compatible ABB SACE Emax switchboards and power distribution assemblies.

Trusted ABB Power Distribution Technology

ABB SACE Emax air circuit breakers combine configurable electronic protection, high-current switching and robust installation options for demanding industrial and commercial low-voltage power distribution systems.