1SDA057154R1 ABB E6V 6300 PR121/P-LSIG 6300A 3P Withdrawable Air Circuit Breaker

Why Choose the ABB E6V 6300 PR121/P-LSIG 6300A 3P Withdrawable Air Circuit Breaker?

The ABB 1SDA057154R1 is a high-performance SACE Emax E6V air circuit breaker moving part engineered for protection and switching in demanding high-current low-voltage power distribution systems. Rated at 6300 A, this three-pole withdrawable breaker incorporates an ABB PR121/P-LSIG R6300 electronic overcurrent release providing long-time overload, short-time delayed, instantaneous short-circuit and earth-fault protection.

As part of the proven ABB SACE Emax series, the E6V 6300 combines very high current-carrying capability with exceptional fault interruption performance. Its withdrawable moving-part construction is designed for use with the corresponding Emax fixed part, allowing isolation and removal of the circuit breaker for inspection, servicing or replacement in critical switchboard installations.

With a rated operational voltage of 690 V AC, an ultimate short-circuit breaking capacity of 150 kA at 415 V AC and 100 kA at 690 V AC, the E6V delivers robust protection where substantial prospective fault currents are present. Its 100 kA short-time withstand current for 1 s further supports selective protection and coordination in high-capacity distribution networks.

Key Advantages

• High-current 6300 A SACE Emax air circuit breaker moving part.
• Three-pole configuration for high-capacity three-phase electrical networks.
• PR121/P-LSIG R6300 electronic overcurrent release.
• LSIG functionality provides long-time, short-time, instantaneous and earth-fault protection.
• 150 kA ultimate breaking capacity at 415 V AC.
• 100 kA ultimate breaking capacity at 690 V AC.
• 100 kA short-time withstand current for 1 s.
• Withdrawable construction supports efficient inspection, maintenance and replacement.

Key Features

• ABB SACE Emax E6V air circuit breaker platform.
• 6300 A rated uninterrupted current.
• Three-pole configuration.
• Withdrawable moving-part execution.
• PR121/P-LSIG R6300 electronic overcurrent release.
• Long-time overload protection.
• Short-time delayed short-circuit protection.
• Instantaneous short-circuit protection.
• Integrated earth-fault protection.
• 690 V AC rated operational voltage.
• Four auxiliary contacts.
• Open/closed circuit-breaker position indication.

Comprehensive Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E6V provide switching and comprehensive overcurrent protection for major low-voltage distribution circuits. The electronic trip unit monitors current conditions and initiates circuit-breaker operation when configured overload, short-circuit or earth-fault thresholds are exceeded, helping protect busbars, cables, transformers and connected electrical equipment.

The PR121/P-LSIG release combines long-time overload, short-time delayed short-circuit, instantaneous short-circuit and earth-fault protection with the exceptional fault-interruption capability of the E6V frame. Its 6300 A rating, 150 kA Icu at 415 V AC and withdrawable construction make this breaker particularly suitable for critical high-capacity distribution systems requiring comprehensive protection and maintainability.

Typical Applications

• Main incoming circuit breakers in high-current low-voltage switchboards.
• Industrial power distribution systems.
• High-capacity feeder protection.
• Transformer secondary protection and switching.
• Manufacturing and process plants.
• Commercial and infrastructure power distribution.
• Generator and utility distribution systems.
• Switchboards requiring withdrawable 6300 A breakers with comprehensive LSIG protection.