1SDA059265R1 ABB E2N 1000A 3-Pole Fixed Air Circuit Breaker PR121/P-LSIG

Why Choose the ABB 1SDA059265R1 E2N 1000 PR121/P-LSIG Air Circuit Breaker?

The ABB 1SDA059265R1 is a SACE Emax E2N 1000 air circuit breaker designed for protection and switching in demanding low-voltage power distribution systems. Rated at 1000 A, this three-pole fixed circuit breaker is equipped with an ABB PR121/P-LSIG R1000 electronic overcurrent release for comprehensive circuit protection.

As part of the ABB SACE Emax range, the E2N 1000 combines high-current switching capability with electronic protection for industrial, commercial and infrastructure switchboards. The 1SDA059265R1 is a fixed three-pole version with rear horizontal terminals and is fitted with four auxiliary change-over contacts plus circuit-breaker open/closed position indication.

With a rated uninterrupted current of 1000 A, rated voltage of 690 V and rated ultimate short-circuit breaking capacity of 65 kA at 400 V AC, the 1SDA059265R1 provides robust protection for substantial three-phase distribution circuits requiring LSIG electronic protection.

Key Advantages

• 1000 A rated current for high-current low-voltage distribution applications.
• PR121/P-LSIG electronic overcurrent release provides comprehensive circuit protection.
• LSIG protection combines long-time, short-time, instantaneous and earth-fault protection functions.
• Three-pole configuration is designed for three-phase electrical distribution systems.
• Fixed installation provides a robust permanent switchboard arrangement.
• Rear horizontal terminals support integration into compatible SACE Emax switchgear assemblies.
• 65 kA ultimate short-circuit breaking capacity at 400 V AC supports demanding distribution systems.
• Four auxiliary change-over contacts support breaker status signalling and control integration.

Key Features

• ABB SACE Emax E2N 1000 air circuit breaker.
• 1000 A rated uninterrupted current (Iu).
• Three-pole construction.
• Fixed version.
• Rear horizontal terminals.
• Electronic PR121/P-LSIG R1000 overcurrent release.
• LSIG protection functions: long-time, short-time, instantaneous and earth-fault.
• 690 V rated voltage.
• 65 kA rated ultimate short-circuit breaking capacity at 400 V AC.
• 400–1000 A overload release adjustment range.
• 1000–10000 A short-time delayed short-circuit adjustment range.
• 1500–15000 A instantaneous short-circuit adjustment range.
• Integrated earth-fault protection.
• Four auxiliary change-over contacts with open/closed position indication.

Comprehensive LSIG Protection for Three-Phase Distribution

Air circuit breakers protect and control high-current low-voltage distribution circuits by interrupting overload and short-circuit faults while also providing switching and isolation functionality. The three-pole construction of the ABB 1SDA059265R1 is designed for three-phase distribution systems, while its fixed rear-horizontal-terminal arrangement provides a permanent connection within compatible switchboards.

The PR121/P-LSIG R1000 electronic overcurrent release provides long-time protection against sustained overloads, short-time and instantaneous protection against short-circuit conditions, and integrated earth-fault protection. Combined with the 1000 A current rating and E2N short-circuit performance, the 1SDA059265R1 provides comprehensive protection for demanding industrial, commercial and infrastructure power distribution applications.

Typical Applications

• Main low-voltage distribution switchboards.
• Industrial power distribution systems.
• Three-phase 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.