1SDA104511R1 ABB Emax 2 E4.2S/E9 3200A Ekip Touch LSI 4P WMP 900V Air Circuit Breaker

Why Choose the ABB 1SDA104511R1 Emax 2 E4.2S/E9 Air Circuit Breaker?

The ABB 1SDA104511R1 is a high-performance SACE Emax 2 E4.2S/E9 air circuit breaker moving part designed for demanding low-voltage AC power distribution systems operating at up to 900 V AC. Rated at 3200 A, this four-pole withdrawable configuration combines ABB's Emax 2 switching platform with an advanced Ekip Touch LSI electronic trip unit.

The E4.2S/E9 platform provides a rated ultimate and service short-circuit breaking capacity of 65 kA at 900 V AC, delivering robust fault interruption for high-current distribution applications. Its Ekip Touch LSI electronic release provides long-time, short-time and instantaneous overcurrent protection for configurable protection of conductors, equipment and electrical distribution networks.

Configured as a four-pole withdrawable moving part (WMP), the 1SDA104511R1 is designed for use with the corresponding ABB Emax 2 fixed part. The withdrawable architecture supports inspection, maintenance and replacement while its 3200 A rating and high short-circuit performance make it suitable for industrial, infrastructure and renewable energy switchboards.

Key Advantages

• High-performance ABB SACE Emax 2 E4.2S/E9 air circuit breaker moving part.
• 3200 A rated uninterrupted current for high-current distribution systems.
• Designed for operation at up to 900 V AC.
• 65 kA ultimate and service short-circuit breaking capacity at 900 V AC.
• Advanced Ekip Touch LSI electronic trip unit for configurable overcurrent protection.
• Four-pole withdrawable construction supports comprehensive switching and maintainable switchboard designs.
• Designed for integration with the corresponding ABB Emax 2 withdrawable fixed part.
• Suitable for demanding industrial, infrastructure and renewable energy distribution systems.

Key Features

• ABB SACE Emax 2 E4.2S/E9 platform.
• 3200 A rated current.
• 900 V AC rated operational voltage.
• Four-pole construction.
• Withdrawable moving part (WMP) configuration.
• Ekip Touch LSI electronic release.
• Long-time, short-time and instantaneous protection functions.
• 65 kA Icu at 900 V AC.
• 65 kA Ics at 900 V AC.
• 65 kA short-time withstand current for 1 and 3 seconds.
• 1000 V AC rated insulation voltage.
• 12 kV rated impulse withstand voltage.

Ekip Touch LSI Protection for High-Current 900 V Distribution

The Ekip Touch LSI electronic trip unit provides long-time (L), short-time (S) and instantaneous (I) protection functions, enabling the circuit breaker to respond to overload and short-circuit conditions. Its electronic architecture supports configurable protection settings for coordination within sophisticated high-current electrical distribution systems.

Combined with the E4.2S/E9 platform, the trip unit provides advanced protection for systems operating at up to 900 V AC. The breaker's 65 kA short-circuit breaking and withstand performance, 3200 A current rating and withdrawable architecture make it particularly suitable for high-capacity switchboards where protection performance and serviceability are essential.

Typical Applications

• 900 V AC high-current power distribution systems.
• Industrial main distribution switchboards.
• Solar photovoltaic and renewable energy installations.
• Transformer and generator distribution systems.
• Four-pole withdrawable switchgear assemblies.
• Infrastructure and critical power distribution systems.
• High-capacity installations requiring advanced electronic overcurrent protection.