1SDA059394R1 ABB SACE Emax E3S1000 PR121/P LSIG 1000 A 3-Pole Withdrawable Air Circuit Breaker

1SDA059394R1 ABB SACE Emax E3S1000 PR121/P LSIG 1000 A 3-Pole Withdrawable Air Circuit Breaker

ABB 1SDA059394R1 SACE Emax E3S1000 three-pole withdrawable air circuit breaker moving part with a 1000 A rating, PR121/P LSIG electronic trip unit, integrated earth-fault protection and auxiliary open/closed position contacts for demanding low-voltage power distribution protection.

SKU: 1SDA059394R1MPN: 1SDA059394R1
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List Price £12,575.05 ex VAT
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£9,431.29 25% OFF
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Manufacturer Lead Time Estimated Delivery 6 weeks
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Why Choose the ABB 1SDA059394R1 E3S1000 Air Circuit Breaker?

The ABB 1SDA059394R1 is a high-performance SACE Emax E3S1000 air circuit breaker (ACB) moving part designed for protection and switching in demanding low-voltage electrical distribution systems. As part of the ABB New Emax series, this three-pole withdrawable circuit breaker combines a 1000 A rated current with the PR121/P electronic trip unit for comprehensive circuit protection.

Configured with LSIG protection, the PR121/P electronic trip unit provides long-time, short-time, instantaneous and earth-fault protection functions. This combination makes the breaker suitable for industrial switchboards, transformer distribution, infrastructure and other installations requiring dependable overload, short-circuit and earth-fault protection.

The E3S1000 is a three-pole withdrawable moving-part configuration designed for integration into compatible SACE Emax switchgear. Its E3S performance level provides high short-circuit interruption capability, while the withdrawable construction facilitates inspection, servicing and replacement without requiring permanent removal of the associated switchgear connections.

Key Advantages

  • High-performance ABB SACE Emax E3S1000 air circuit breaker for demanding low-voltage distribution systems.
  • 1000 A rated current for industrial and infrastructure power distribution.
  • Three-pole withdrawable moving-part configuration for compatible Emax switchgear.
  • PR121/P electronic trip unit with comprehensive LSIG protection.
  • Integrated earth-fault protection for enhanced electrical system protection.
  • Withdrawable construction supports convenient inspection, maintenance and breaker replacement.
  • Supplied with auxiliary contacts and open/closed circuit-breaker position indication.

Key Features

  • ABB SACE Emax E3S1000 air circuit breaker moving part.
  • 1000 A rated uninterrupted current.
  • Three-pole configuration.
  • PR121/P electronic overcurrent release.
  • LSIG protection providing long-time, short-time, instantaneous and earth-fault protection.
  • 65 kA class short-circuit performance for demanding low-voltage distribution applications.
  • Withdrawable moving-part configuration for compatible switchgear.
  • Four auxiliary contacts.
  • Open/closed circuit-breaker position indication.
  • Motor operator available as an optional configuration accessory.

Advanced Protection for High-Demand Power Distribution

Air circuit breakers such as the ABB SACE Emax E3S1000 protect low-voltage electrical installations against overloads, short circuits and earth faults while providing dependable switching and isolation. Their high current-handling capability makes them particularly suitable for main distribution boards, industrial switchgear and other installations where reliable protection of substantial electrical loads 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 withdrawable Emax moving-part design, this provides comprehensive electrical protection while allowing the breaker to be withdrawn from compatible switchgear for inspection, servicing or replacement.

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.
  • Installations requiring integrated earth-fault protection.
  • High-demand low-voltage distribution networks.

Technical Specifications

Series SACE New Emax
ABB order code 1SDA059394R1
Product group 310513-New Emax
Product type Air circuit breaker moving part
Frame / breaker type E3S1000
Short-circuit performance level S
Rated uninterrupted current 1000 A
Number of poles 3
Trip unit PR121/P electronic trip unit
Protection functions LSIG (Long-time, Short-time, Instantaneous, Earth-fault)
Overload release setting range 400–1000 A
Short-time short-circuit release setting range 1000–10000 A
Instantaneous short-circuit release setting range 1500–15000 A
Integrated earth-fault protection Yes
Current type AC
Mounting type Withdrawable moving part
Auxiliary contacts 4
Position indication Open / closed
Motor operator Optional
Degree of protection IP20
Net weight 77 kg
EAN 8015644617554
HS code 85362090

Frequently Asked Questions

What is the ABB 1SDA059394R1 used for?

The ABB 1SDA059394R1 is a SACE Emax E3S1000 air circuit breaker moving part 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 1SDA059394R1?

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 1SDA059394R1 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 1SDA059394R1 fixed or withdrawable?

The ABB 1SDA059394R1 is a three-pole withdrawable moving-part circuit breaker designed for integration into compatible SACE Emax switchgear assemblies.

Trusted by Electrical Professionals Worldwide

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