1SDA059248R1 ABB E1N1000 PR123/P-LSIG 1000 A 4-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB 1SDA059248R1 E1N1000 Air Circuit Breaker?

The ABB 1SDA059248R1 is a high-performance SACE Emax E1N 1000 A four-pole air circuit breaker moving part designed for comprehensive protection and switching in low-voltage electrical distribution systems. Part of the ABB New Emax product family, it combines a 1000 A current rating with the advanced PR123/P-LSIG electronic overcurrent release for demanding industrial and commercial power applications.

The E1N1000 is equipped with an ABB PR123/P-LSIG electronic trip unit, providing long-time, short-time, instantaneous and earth-fault protection functions. Its adjustable electronic protection enables the breaker to respond effectively to overload, short-circuit and earth-fault conditions while supporting selective and coordinated protection within complex electrical distribution networks.

This model features a four-pole withdrawable moving-part (W MP) configuration and is fitted with four auxiliary change-over contacts plus circuit breaker open/closed position indication. With a rated current of 1000 A, rated voltage of 690 V AC and rated ultimate short-circuit breaking capacity of 50 kA at 400 V AC, it is engineered for demanding low-voltage switchboard applications.

Key Advantages

• High-performance ABB SACE Emax air circuit breaker for low-voltage power distribution.
• 1000 A rated current for demanding industrial and commercial installations.
• Four-pole configuration for switching and protection of four conductors.
• PR123/P-LSIG electronic release provides comprehensive overcurrent and earth-fault protection.
• 50 kA rated ultimate short-circuit breaking capacity at 400 V AC.
• Withdrawable moving-part design supports efficient maintenance and switchboard servicing.
• Four auxiliary change-over contacts support control, signalling and status monitoring.
• Open/closed position indication provides clear circuit breaker operating status.

Key Features

• ABB SACE Emax E1N series.
• 1000 A rated permanent current.
• Four-pole air circuit breaker.
• PR123/P-LSIG electronic overcurrent release.
• LSIG protection functions: long-time, short-time, instantaneous and earth-fault.
• 690 V AC rated voltage.
• 50 kA rated ultimate short-circuit breaking capacity at 400 V AC.
• Adjustable overload release range of 400–1000 A.
• Withdrawable (W) moving part (MP) configuration.
• Four auxiliary change-over contacts.
• Circuit breaker open/closed position indication.
• Optional motor operating mechanism capability.

Advanced Circuit Protection for Power Distribution

Air circuit breakers such as the ABB SACE Emax E1N protect low-voltage electrical distribution systems against overload, short-circuit and earth-fault conditions. The electronic trip unit continuously monitors current and initiates circuit breaker operation when configured protection thresholds are exceeded, helping protect cables, busbars, switchgear and connected equipment.

The PR123/P-LSIG release provides comprehensive long-time, short-time, instantaneous and earth-fault protection. Combined with the E1N breaker’s 50 kA short-circuit breaking capacity at 400 V AC and withdrawable construction, this makes the 1SDA059248R1 particularly suitable for critical industrial and commercial distribution systems requiring sophisticated protection and maintainable switchgear.

Typical Applications

• Industrial low-voltage switchboards.
• Main incoming and distribution circuits.
• Three-phase and four-wire distribution systems.
• Manufacturing and process facilities.
• Commercial building power distribution.
• Electrical distribution panels and assemblies.
• Infrastructure and utility installations.
• Systems requiring withdrawable high-current circuit breakers.