1SDA059247R1 ABB E1N 1000A 4-Pole Fixed Air Circuit Breaker PR123/P-LSIG

Why Choose the ABB 1SDA059247R1 E1N 1000 PR123/P-LSIG Air Circuit Breaker?

The ABB 1SDA059247R1 is a SACE Emax E1N 1000 air circuit breaker designed for advanced protection and switching in demanding low-voltage power distribution systems. Rated at 1000 A, this four-pole fixed circuit breaker is equipped with an ABB PR123/P-LSIG R1000 electronic overcurrent release for comprehensive circuit protection.

As part of the ABB SACE Emax range, the E1N 1000 combines high-current switching capability with electronic protection for industrial, commercial and infrastructure switchboards. The 1SDA059247R1 is a fixed four-pole version with rear horizontal terminals and is fitted with four auxiliary contacts plus circuit-breaker open/closed position indication.

With a rated uninterrupted current of 1000 A and an E1N short-circuit performance level providing 50 kA breaking capacity at 400 V AC, the 1SDA059247R1 is suited to substantial low-voltage distribution circuits where advanced LSIG protection and four-pole switching are required.

Key Advantages

• 1000 A rated current for high-current low-voltage distribution applications.
• PR123/P-LSIG electronic overcurrent release provides comprehensive protection functionality.
• LSIG protection combines long-time, short-time, instantaneous and ground-fault protection.
• Four-pole configuration supports switching and protection across four conductors.
• Fixed installation provides a robust permanent switchboard arrangement.
• Rear horizontal terminals support integration into compatible SACE Emax switchgear assemblies.
• 50 kA short-circuit breaking capacity at 400 V AC supports demanding distribution systems.
• Four auxiliary contacts provide circuit-breaker open/closed position signalling.

Key Features

• ABB SACE Emax E1N 1000 air circuit breaker.
• 1000 A rated uninterrupted current.
• Four-pole construction.
• Fixed version.
• Rear horizontal terminals.
• Electronic PR123/P-LSIG R1000 overcurrent release.
• LSIG protection functions: long-time, short-time, instantaneous and ground-fault.
• 50 kA rated ultimate short-circuit breaking capacity at 400 V AC.
• 400–1000 A overload release setting range.
• 600–10000 A short-time short-circuit adjustment range.
• 1500–15000 A instantaneous short-circuit adjustment range.
• Four auxiliary contacts with open/closed circuit-breaker position indication.

Advanced LSIG Protection for Four-Pole Distribution

Air circuit breakers protect and control high-current low-voltage distribution circuits by interrupting overload and short-circuit faults while providing switching and isolation functionality. The four-pole construction of the ABB 1SDA059247R1 supports applications requiring switching and protection across four conductors, while its fixed rear-horizontal-terminal arrangement provides a permanent connection within compatible switchboards.

The PR123/P-LSIG electronic overcurrent release provides long-time protection against sustained overloads, short-time and instantaneous protection against short-circuit conditions, and ground-fault protection for enhanced system coverage. Combined with the 1000 A rating and E1N short-circuit performance, the 1SDA059247R1 provides comprehensive protection for demanding industrial and commercial power distribution applications.

Typical Applications

• Main low-voltage distribution switchboards.
• Industrial power distribution systems.
• Four-pole feeder protection and switching.
• Applications requiring LSIG electronic protection.
• Transformer and installation protection.
• Manufacturing and process plant switchgear.
• Commercial and infrastructure electrical distribution.
• Fixed low-voltage switchgear installations.