1SDA059203R1 ABB E1B1000 PR123/P-LSIG 1000A 4-Pole Fixed Air Circuit Breaker

1SDA059203R1 ABB E1B1000 PR123/P-LSIG 1000A 4-Pole Fixed Air Circuit Breaker

ABB 1SDA059203R1 is a SACE Emax E1B 1000 A four-pole fixed air circuit breaker with rear horizontal terminals, a PR123/P-LSIG R1000 electronic overcurrent release and four auxiliary contacts for open/closed position indication.

SKU: 1SDA059203R1MPN: 1SDA059203R1
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List Price £21,233.65 ex VAT
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Why Choose the ABB E1B1000 PR123/P-LSIG 1000A 4-Pole Fixed Circuit Breaker?

The ABB E1B1000 PR123/P-LSIG, order code 1SDA059203R1, 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 E1B series, this four-pole fixed circuit breaker has a rated current of 1000 A and incorporates the advanced PR123/P-LSIG R1000 electronic overcurrent release.

The PR123/P-LSIG protection unit provides comprehensive long-time, short-time, instantaneous and earth-fault protection, helping safeguard electrical installations against overloads, short circuits and ground faults. Its electronic protection architecture makes the E1B1000 suitable for industrial switchboards and critical power distribution systems requiring accurate, dependable circuit protection.

This version is a four-pole fixed circuit breaker with rear horizontal terminals. It is supplied with four auxiliary contacts for circuit-breaker open/closed position indication, providing useful status signalling for integration into electrical switchboards, monitoring systems and industrial control installations.

Key Advantages

  • Heavy-duty ABB SACE Emax air circuit breaker for industrial power distribution.
  • 1000 A rated current for high-current low-voltage installations.
  • Four-pole configuration enables switching and protection across four conductors.
  • PR123/P-LSIG electronic overcurrent release for comprehensive circuit protection.
  • LSIG functionality provides overload, short-time, instantaneous and earth-fault protection.
  • Fixed construction with rear horizontal terminals for switchboard integration.
  • Four auxiliary contacts provide open/closed circuit-breaker status indication.

Key Features

  • ABB SACE Emax E1B air circuit breaker platform.
  • 1000 A rated current.
  • 4-pole configuration.
  • PR123/P-LSIG R1000 electronic overcurrent release.
  • Long-time L overload protection.
  • Short-time S short-circuit protection.
  • Instantaneous I short-circuit protection.
  • Earth-fault G protection.
  • Fixed circuit-breaker execution.
  • Rear horizontal terminals.
  • Four auxiliary contacts for open/closed breaker status.

Reliable Protection for Low-Voltage Power Distribution

ABB SACE Emax air circuit breakers are engineered for switching and protecting high-current low-voltage distribution circuits. The PR123/P electronic trip unit monitors current conditions and initiates breaker operation when configured protection thresholds are exceeded, helping minimise damage to cables, busbars and connected electrical equipment.

The LSIG protection configuration combines long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection. Together with the fixed four-pole construction and rear horizontal terminals, the E1B1000 provides a robust solution for switchboards requiring comprehensive electronic protection and reliable high-current switching.

Typical Applications

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

Technical Specifications

Series SACE Emax E1B
ABB order code 1SDA059203R1
Product type Air circuit breaker
Rated current 1000 A
Number of poles 4
Trip unit PR123/P-LSIG R1000
Protection functions L, S, I, G
Execution Fixed
Terminal arrangement Rear horizontal
Rated operational voltage 690 V AC
Rated ultimate short-circuit breaking capacity 42 kA at 690 V AC
Rated short-time withstand current 42 kA for 1 s; 36 kA for 3 s
Auxiliary contacts 4
Auxiliary contact function Open/closed circuit-breaker position indication
Weight 62 kg
EAN 8015644615642

Frequently Asked Questions

What is the ABB 1SDA059203R1?

The ABB 1SDA059203R1 is a four-pole, 1000 A SACE Emax E1B fixed air circuit breaker with rear horizontal terminals and a PR123/P-LSIG R1000 electronic overcurrent release.

What is the rated current of the ABB E1B1000?

This E1B1000 circuit breaker has a rated current of 1000 A.

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

The PR123/P-LSIG provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection, represented by the L, S, I and G functions.

Is ABB 1SDA059203R1 fixed or withdrawable?

The 1SDA059203R1 is a fixed four-pole circuit breaker fitted with rear horizontal terminals.

Does the ABB 1SDA059203R1 include auxiliary contacts?

Yes. This configuration is fitted with four auxiliary contacts for indication of the circuit breaker's open and closed position.

Trusted ABB Power Distribution Technology

ABB SACE Emax air circuit breakers are designed for dependable protection and switching in demanding low-voltage power distribution systems, combining advanced electronic protection with robust construction and flexible switchgear integration.