1SDA059395R1 ABB SACE New Emax E3S1000 PR121/P LSIG 1000 A 4-Pole Fixed Air Circuit Breaker

1SDA059395R1 ABB SACE New Emax E3S1000 PR121/P LSIG 1000 A 4-Pole Fixed Air Circuit Breaker

ABB 1SDA059395R1 SACE New Emax E3S1000 four-pole fixed air circuit breaker with a 1000 A rating, PR121/P LSIG electronic trip unit, rear horizontal terminals, integrated earth-fault protection and four auxiliary contacts for demanding low-voltage power distribution protection.

SKU: 1SDA059395R1MPN: 1SDA059395R1
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List Price £15,318.23 ex VAT
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Why Choose the ABB 1SDA059395R1 E3S1000 Air Circuit Breaker?

The ABB 1SDA059395R1 is a high-performance SACE New Emax E3S1000 air circuit breaker (ACB) designed for protection and switching in demanding low-voltage electrical distribution systems. This four-pole fixed circuit breaker combines a 1000 A rated current with the PR121/P electronic trip unit, providing comprehensive protection for industrial, commercial and infrastructure power distribution applications.

Configured with LSIG protection, the PR121/P electronic trip unit provides long-time, short-time, instantaneous and earth-fault protection functions. This combination enables the breaker to protect electrical networks against overloads, short circuits and earth faults while supporting effective protection coordination within low-voltage distribution systems.

This E3S1000 configuration features four poles, fixed construction and rear horizontal terminals. It is also fitted with four auxiliary contacts and open/closed position indication, making it suitable for integration into compatible switchboards where dependable protection, switching and status signalling are required.

Key Advantages

  • High-performance ABB SACE New Emax E3S1000 air circuit breaker for low-voltage power distribution.
  • 1000 A rated current for demanding industrial and infrastructure applications.
  • Four-pole fixed configuration suitable for systems requiring neutral switching.
  • PR121/P electronic trip unit with comprehensive LSIG protection.
  • Integrated earth-fault protection for enhanced electrical system protection.
  • Rear horizontal terminals for practical integration into compatible switchboards.
  • Four auxiliary contacts and open/closed position indication for circuit-breaker status signalling.

Key Features

  • ABB SACE New Emax E3S1000 air circuit breaker.
  • 1000 A rated uninterrupted current.
  • Four-pole configuration.
  • PR121/P electronic overcurrent release.
  • LSIG protection providing long-time, short-time, instantaneous and earth-fault protection.
  • Fixed circuit breaker construction.
  • Rear horizontal main terminals.
  • Four auxiliary contacts.
  • Open/closed circuit-breaker position indication.
  • Designed for demanding low-voltage power distribution and switchgear applications.

Advanced Protection for High-Demand Power Distribution

Air circuit breakers such as the ABB SACE New Emax E3S1000 protect low-voltage electrical installations against overloads, short circuits and earth faults while providing dependable switching and isolation. They are particularly suited to main distribution boards, industrial switchgear and other installations where reliable protection of high-current electrical circuits is essential.

The PR121/P electronic trip unit provides LSIG protection through long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault functions. Combined with the four-pole fixed Emax construction, this provides comprehensive protection for three-phase distribution systems requiring switching of the neutral conductor alongside the phase conductors.

Typical Applications

  • Main low-voltage electrical distribution boards.
  • Industrial switchboards and switchgear assemblies.
  • Transformer and generator distribution systems.
  • Manufacturing and process plant electrical systems.
  • Commercial and infrastructure power distribution.
  • Four-pole systems requiring neutral switching and earth-fault protection.
  • High-demand low-voltage electrical distribution networks.

Technical Specifications

Series SACE New Emax
ABB order code 1SDA059395R1
Product group 310513-New Emax
Product type Air circuit breaker
Frame / breaker type E3S1000
Short-circuit performance level S
Rated uninterrupted current 1000 A
Number of poles 4
Trip unit PR121/P electronic trip unit
Protection functions LSIG (Long-time, Short-time, Instantaneous, Earth-fault)
Integrated earth-fault protection Yes
Current type AC
Mounting type Fixed
Main terminal arrangement Rear horizontal
Auxiliary contacts 4
Position indication Open / closed
Net weight 90 kg
EAN 8015644617561
HS code 85362090

Frequently Asked Questions

What is the ABB 1SDA059395R1 used for?

The ABB 1SDA059395R1 is a SACE New Emax E3S1000 air circuit breaker used for switching and protecting low-voltage electrical distribution systems against overload, short-circuit and earth-fault conditions.

What is the current rating of the ABB 1SDA059395R1?

The circuit breaker has a rated uninterrupted current of 1000 A.

What protection functions does the PR121/P trip unit provide?

The PR121/P is configured for LSIG protection, providing long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection functions.

Does the ABB 1SDA059395R1 provide earth-fault protection?

Yes. Its PR121/P-LSIG electronic trip unit includes the G earth-fault protection function in addition to long-time, short-time and instantaneous protection.

Is the ABB 1SDA059395R1 fixed or withdrawable?

The ABB 1SDA059395R1 is a four-pole fixed air circuit breaker equipped with rear horizontal terminals for integration into compatible low-voltage switchboards.

Trusted by Electrical Professionals Worldwide

ABB SACE New Emax air circuit breakers are designed for dependable protection and switching in demanding industrial and commercial low-voltage power distribution systems, combining robust fault protection with electronic trip-unit technology.