1SDA072735R1 ABB E1.2C 800 Ekip Touch LSI 4P Air Circuit Breaker

Why Choose the ABB 1SDA072735R1 Emax 2 Air Circuit Breaker?

The ABB 1SDA072735R1 is a high-performance SACE Emax 2 E1.2C air circuit breaker designed for reliable protection, control and management of low-voltage electrical distribution systems. Configured as an E1.2C 800 Ekip Touch LSI 4p WMP, this four-pole withdrawable moving part combines an 800 A rated current with ABB's advanced Ekip Touch LSI electronic protection release.

As part of the ABB SACE Emax 2 air circuit breaker series, the E1.2C is engineered for demanding industrial, commercial and infrastructure power distribution applications. The Ekip Touch LSI trip unit provides adjustable long-time, short-time and instantaneous overcurrent protection, with settings and operating information accessible through an intuitive touch-sensitive display.

The E1.2C performance level provides a rated ultimate short-circuit breaking capacity of 50 kA at 380–440 V AC and 42 kA at 500–690 V AC. With a rated operational voltage of 690 V AC, rated insulation voltage of 1000 V AC and four-pole withdrawable construction, this breaker is well suited to demanding switchboard installations requiring robust circuit protection and straightforward maintenance.

Key Advantages

• High-performance ABB SACE Emax 2 air circuit breaker for low-voltage power distribution.
• 800 A rated current for substantial industrial and commercial electrical loads.
• 50 kA ultimate short-circuit breaking capacity at 380–440 V AC.
• 42 kA short-time withstand current for 1 s.
• Advanced Ekip Touch LSI electronic protection release.
• Adjustable long-time, short-time and instantaneous protection functions.
• Four-pole withdrawable moving-part design for flexible switchboard installation and servicing.
• Touch-sensitive interface simplifies protection configuration and system monitoring.

Key Features

• ABB SACE Emax 2 E1.2C series.
• 800 A rated current.
• 4-pole configuration.
• Ekip Touch LSI electronic trip unit.
• 50 kA Icu at 380–440 V AC.
• 42 kA Icu at 500–690 V AC.
• 42 kA Icw for 1 s.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• Adjustable long-time overload protection.
• Adjustable short-time selective short-circuit protection.
• Adjustable instantaneous short-circuit protection.
• Touch-sensitive display for protection configuration.
• Withdrawable moving-part construction for use with the corresponding Emax 2 fixed part.

Advanced Circuit Protection for Power Distribution

Air circuit breakers such as the ABB SACE Emax 2 E1.2C protect low-voltage electrical distribution systems against overloads and short circuits while providing dependable switching and isolation. The E1.2C's 50 kA breaking capacity at 380–440 V AC provides robust fault interruption for switchboards, feeders and connected electrical equipment in demanding installations.

The Ekip Touch LSI electronic trip unit combines adjustable long-time, short-time and instantaneous protection with an intuitive touch interface. This allows protection parameters to be configured for the requirements of the electrical installation while the wider Emax 2 platform provides a flexible foundation for modern power distribution, monitoring and automation systems.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Commercial building electrical distribution.
• Manufacturing and process facilities.
• Data centres and critical infrastructure.
• Incoming and outgoing switchboard feeders.
• Power management and electrical monitoring systems.
• Switchboards requiring four-pole withdrawable circuit breaker assemblies.