1SDA057707R1 ABB E3V-A 1200 PR122/P-LSIG 1200 A 3-Pole Fixed Air Circuit Breaker

Why Choose the ABB E3V-A 1200 PR122/P-LSIG 1SDA057707R1 Air Circuit Breaker?

The ABB 1SDA057707R1 is a high-performance SACE Emax E3V-A air circuit breaker designed for reliable switching and protection in demanding low-voltage electrical distribution systems. Part of the ABB New Emax series, this three-pole fixed breaker combines a 1200 A rated current with the PR122/P-LSIG electronic overcurrent release for industrial, commercial and infrastructure power distribution applications.

The breaker is equipped with an ABB PR122/P-LSIG R1200 electronic trip unit, providing long-time, short-time, instantaneous and ground-fault protection. This LSIG configuration delivers comprehensive electronic overcurrent protection, while the specified instantaneous current setting is 18000 A.

Configured as a three-pole fixed circuit breaker, the E3V-A 1SDA057707R1 features rear horizontal terminals for integration into compatible low-voltage switchboards. The breaker is also fitted with four auxiliary contacts and open/closed position indication, supporting signalling, monitoring and control within demanding electrical distribution installations.

Key Advantages

• High-performance ABB SACE Emax E3V-A air circuit breaker for demanding low-voltage power distribution.
• 1200 A rated current for high-current electrical installations.
• PR122/P-LSIG R1200 electronic trip unit for comprehensive electronic overcurrent protection.
• LSIG functions provide long-time, short-time, instantaneous and ground-fault protection.
• 18000 A instantaneous current setting for rapid response to severe short-circuit conditions.
• Three-pole fixed configuration with rear horizontal terminals for switchboard integration.
• Four auxiliary contacts and open/closed position indication support signalling and control.

Key Features

• ABB SACE Emax E3V-A series.
• 1200 A rated current.
• Three-pole air circuit breaker.
• PR122/P-LSIG R1200 electronic overcurrent release.
• 18000 A instantaneous current setting.
• Long-time overload protection.
• Short-time short-circuit protection.
• Instantaneous short-circuit protection.
• Ground-fault protection.
• Fixed circuit-breaker configuration.
• Rear horizontal terminals.
• Four auxiliary contacts.
• Open/closed circuit-breaker position indication.
• UL version.

Advanced LSIG Protection for Critical Power Distribution

The ABB SACE Emax E3V-A platform is designed for demanding low-voltage distribution duties where dependable switching and comprehensive electronic circuit protection are required. The PR122/P-LSIG electronic trip unit provides long-time protection against sustained overloads, short-time protection against short-circuit conditions, instantaneous protection against severe fault currents and dedicated ground-fault protection.

The inclusion of both short-time and ground-fault protection makes the 1SDA057707R1 suitable for sophisticated distribution systems requiring greater protection flexibility. Its fixed construction and rear horizontal terminals provide a robust arrangement for permanent switchboard installation, while the auxiliary contacts and open/closed indication facilitate integration with monitoring and control systems.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Commercial and infrastructure electrical distribution.
• Manufacturing and process plant switchgear.
• Transformer and generator distribution circuits.
• High-current three-phase AC installations.
• Main incomer and feeder circuit protection.
• Distribution systems requiring ground-fault protection.
• Electrical networks requiring coordinated LSIG overcurrent protection.