1SDA072105R1 ABB Emax 2 E1.2C 800 Ekip Touch LSI 3-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB 1SDA072105R1 Emax 2 Air Circuit Breaker?

The ABB 1SDA072105R1 is an Emax 2 E1.2C air circuit breaker designed for protection, switching and isolation in low-voltage electrical distribution systems. This three-pole withdrawable circuit breaker moving part has a rated uninterrupted current of 800 A and incorporates an advanced Ekip Touch LSI electronic trip unit providing long-time, short-time and instantaneous overcurrent protection.

As part of the ABB Emax 2 series, the E1.2C platform combines compact construction with dependable short-circuit performance for industrial, commercial and infrastructure switchboards. The C performance level provides an ultimate short-circuit breaking capacity of 50 kA at 440 V AC and a rated short-time withstand current of 42 kA for 1 s.

The E1.2C 800 Ekip Touch LSI 3p WMP is supplied as the moving part of a withdrawable circuit-breaker system for use with a compatible separate fixed part. With its 690 V voltage rating, three-pole construction and Ekip Touch LSI protection, it is particularly suited to main incomers, transformer secondary circuits and distribution feeders where protection selectivity and maintainability are important.

Key Advantages

• 800 A Emax 2 air circuit breaker for low-voltage power distribution.
• Three-pole configuration for three-phase electrical systems.
• Ekip Touch LSI electronic trip unit provides long-time, short-time and instantaneous protection.
• Ultimate short-circuit breaking capacity of 50 kA at 440 V AC.
• 42 kA short-time withstand capability for 1 s supports selective distribution protection.
• Withdrawable moving-part execution supports convenient isolation, inspection and maintenance.

Key Features

• ABB Emax 2 E1.2C series.
• 800 A rated uninterrupted current.
• Three-pole construction.
• Ekip Touch LSI electronic protection release.
• Long-time overload, short-time delayed and instantaneous short-circuit protection.
• 690 V voltage rating.
• 50 kA ultimate breaking capacity at 440 V AC.
• 42 kA rated short-time withstand current for 1 s.
• Withdrawable moving-part configuration for connection through a separate fixed chassis.
• Four change-over auxiliary contacts for circuit-breaker status signalling.
• IP30 degree of protection.

Advanced Protection for Low-Voltage Distribution Systems

Air circuit breakers such as the ABB Emax 2 E1.2 protect low-voltage electrical systems against abnormal current conditions while providing dependable switching and isolation. The Ekip Touch LSI electronic release combines long-time overload, short-time delayed and instantaneous short-circuit protection, helping safeguard cables, busbars, transformers and connected electrical equipment.

The withdrawable E1.2C platform is particularly useful in switchboards where serviceability and operational flexibility are important. The moving circuit breaker connects to the main circuit through a compatible separate chassis and can be withdrawn for inspection or maintenance while the fixed switchboard connections remain installed.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Transformer secondary and incomer protection.
• Distribution feeder protection.
• Commercial and infrastructure electrical systems.
• Manufacturing and process-industry switchgear.