1SDA072824R1 ABB Emax 2 E1.2N 1250 Ekip Touch LI 4-Pole Air Circuit Breaker

Why Choose the ABB 1SDA072824R1 Emax 2 Air Circuit Breaker?

The ABB 1SDA072824R1 is a high-performance Emax 2 E1.2N 1250 A four-pole air circuit breaker designed for protection and control in low-voltage electrical distribution systems. Supplied as the moving part of a withdrawable Emax 2 assembly, this model combines ABB's E1.2N breaking performance with the advanced Ekip Touch LI electronic trip unit.

As part of the ABB SACE Emax 2 air circuit breaker series, the E1.2N is engineered for dependable protection, straightforward system integration and efficient operation in industrial and commercial power distribution. The Ekip Touch platform provides an intuitive electronic interface for configuring and managing protection functions, while the withdrawable design supports convenient inspection and maintenance.

With a rated current of 1250 A, four-pole configuration and 66 kA ultimate short-circuit breaking capacity at 415 V AC, the 1SDA072824R1 is suitable for demanding low-voltage switchboards and power distribution installations. Its Ekip Touch LI release provides overload (L) and instantaneous short-circuit (I) protection.

Key Advantages

• High-performance ABB Emax 2 air circuit breaker for low-voltage power distribution.
• 1250 A rated current for high-current electrical installations.
• Four-pole configuration for switching and protecting three phases and neutral.
• 66 kA ultimate short-circuit breaking capacity at 415 V AC.
• Advanced Ekip Touch LI electronic trip unit with overload and instantaneous protection.
• Withdrawable moving-part construction supports efficient switchboard servicing and maintenance.
• Designed for integration into ABB Emax 2 low-voltage switchgear and distribution systems.

Key Features

• ABB SACE Emax 2 E1.2N series.
• 1250 A rated current.
• Four-pole air circuit breaker.
• Ekip Touch LI electronic protection release.
• Long-time overload (L) protection.
• Instantaneous short-circuit (I) protection.
• 66 kA Icu at 415 V AC.
• 50 kA short-time withstand current for 1 s.
• Withdrawable moving-part configuration for Emax 2 switchgear.
• Supplied with auxiliary contacts and circuit-breaker open/closed position indication.

Advanced Protection for Low-Voltage Power Distribution

Air circuit breakers such as the ABB Emax 2 E1.2N provide switching, isolation and protection for high-current low-voltage distribution circuits. They are commonly installed in main switchboards, distribution boards and industrial power systems where dependable interruption of overload and short-circuit currents is essential.

The Ekip Touch LI trip unit combines electronic overload and instantaneous short-circuit protection with an intuitive interface for setting and managing protection parameters. The withdrawable Emax 2 architecture also allows the circuit-breaker moving part to be disconnected from its fixed section, simplifying maintenance and helping minimise disruption within critical electrical distribution systems.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• Industrial power distribution systems.
• Commercial and infrastructure electrical installations.
• Manufacturing and process plants.
• Power distribution and switchgear assemblies.
• Generator and transformer distribution systems.
• Building services and critical power installations.