1SDA057037R1 ABB E6H 6300 PR122/P-LSIG 6300A 4-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E6H 6300 PR122/P-LSIG 6300A 4-Pole Withdrawable Air Circuit Breaker?

The ABB E6H 6300 PR122/P-LSIG, order code 1SDA057037R1, is a high-capacity SACE Emax air circuit breaker moving part designed for protection and switching in demanding low-voltage electrical distribution systems. Part of the ABB SACE Emax E6H series, this configuration combines a 6300 A rated current, four-pole construction and withdrawable execution with ABB's PR122/P electronic protection technology.

The breaker is equipped with a PR122/P-LSIG electronic overcurrent release, providing long-time, short-time, instantaneous and earth-fault protection functions. This comprehensive protection arrangement helps safeguard major distribution circuits against sustained overloads, short circuits and earth faults while supporting selective coordination within complex industrial and infrastructure electrical networks.

With a rated current of 6300 A, a four-pole configuration and withdrawable moving-part construction, the E6H 6300 PR122/P-LSIG is engineered for very high-current switchgear where high breaking performance, maintainability and comprehensive electronic protection are required. Its E6H performance class provides 100 kA ultimate short-circuit breaking capacity across specified AC voltages up to 690 V AC.

Key Advantages

• Very high-capacity 6300 A SACE Emax air circuit breaker for major low-voltage distribution systems.
• Four-pole construction for comprehensive high-current switching and protection.
• PR122/P-LSIG electronic trip unit provides long-time, short-time, instantaneous and earth-fault protection.
• Withdrawable moving-part execution supports servicing and maintenance in compatible SACE Emax switchgear.
• 100 kA ultimate short-circuit breaking capacity across specified AC system voltages up to 690 V AC.
• Supplied with four auxiliary contacts and circuit-breaker open/closed position indication.

Key Features

• ABB SACE Emax E6H series.
• 6300 A rated current.
• Four-pole configuration.
• Withdrawable circuit-breaker moving part.
• PR122/P electronic overcurrent release.
• LSIG protection functions: long-time, short-time, instantaneous and earth-fault protection.
• R6300 overcurrent release rating.
• 100 kA rated ultimate short-circuit breaking capacity at 400 V AC.
• 100 kA short-time withstand current for 1 s.
• Four auxiliary contacts with open/closed circuit-breaker position indication.

Reliable LSIG Protection for Very High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E6H protect major low-voltage distribution circuits against overload, short-circuit and earth-fault conditions while providing dependable switching and isolation. The withdrawable architecture allows the circuit-breaker moving part to be used with compatible SACE Emax fixed equipment, supporting inspection, servicing and replacement in high-capacity switchboards.

The PR122/P-LSIG electronic release provides long-time protection against sustained overloads, short-time protection to support selective coordination, instantaneous protection against severe short circuits and earth-fault protection for faults involving current flowing to earth. Combined with the E6H breaker's high short-circuit performance, these functions make the 1SDA057037R1 suitable for critical very high-current electrical distribution systems.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• Industrial manufacturing and process plants.
• Very high-current incomer and feeder protection.
• Power generation and infrastructure installations.
• Large commercial and industrial main distribution systems.
• Withdrawable switchgear requiring comprehensive electronic LSIG protection.