1SDA072080R1 ABB Emax 2 E1.2N 630 Ekip G Hi-Touch LSIG 3-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB 1SDA072080R1 Emax 2 Air Circuit Breaker?

The ABB 1SDA072080R1 is a high-performance Emax 2 E1.2N air circuit breaker designed for protection, switching and isolation in low-voltage generator and electrical distribution systems. This three-pole withdrawable circuit breaker moving part has a rated uninterrupted current of 630 A and incorporates an advanced Ekip G Hi-Touch LSIG solid-state electronic trip unit providing long-time, short-time, instantaneous and earth-fault protection.

As part of the ABB Emax 2 series, the E1.2N platform combines compact construction with high short-circuit performance for demanding generator, industrial, commercial and infrastructure switchboards. The N performance level provides an ultimate short-circuit breaking capacity of 66 kA at 440 V AC and a rated short-time withstand current of 50 kA for 1 s.

The E1.2N 630 Ekip G Hi-Touch LSIG 3p WMP is supplied as the moving part of a withdrawable circuit-breaker system and is designed for use with a compatible Emax 2 fixed part. Its generator-oriented Ekip G Hi-Touch release, comprehensive LSIG protection and withdrawable construction make it particularly suitable for generator switchboards, main incomers and critical distribution feeders where sophisticated protection and maintainability are required.

Key Advantages

• Compact 630 A Emax 2 air circuit breaker for demanding generator and low-voltage distribution applications.
• Three-pole configuration for three-phase electrical systems.
• Ekip G Hi-Touch LSIG electronic trip unit provides advanced generator-oriented protection.
• Long-time, short-time, instantaneous and earth-fault protection in a single electronic release.
• High ultimate short-circuit breaking capacity of 66 kA at 440 V AC.
• 50 kA short-time withstand capability for 1 s supports selective distribution architectures.
• Withdrawable moving-part execution facilitates circuit-breaker isolation, inspection and maintenance.

Key Features

• ABB Emax 2 E1.2N series.
• 630 A rated uninterrupted current.
• Three-pole construction.
• Ekip G Hi-Touch LSIG solid-state electronic release.
• Long-time overload, short-time, instantaneous and earth-fault protection functions.
• Generator-oriented protection functionality for demanding generation applications.
• 220–690 V AC rated voltage range.
• 66 kA ultimate short-circuit breaking capacity at 440 V AC.
• 50 kA rated short-time withstand current for 1 s.
• Withdrawable moving-part configuration for use with a compatible Emax 2 E1.2 fixed part.
• Fitted with four auxiliary contacts and circuit-breaker open/closed position indication.

Advanced Protection for Generator and Distribution Systems

Air circuit breakers such as the ABB Emax 2 E1.2 protect low-voltage power systems against abnormal current conditions while providing dependable switching and isolation. The Ekip G Hi-Touch LSIG electronic release combines long-time overload, short-time, instantaneous and earth-fault protection with generator-oriented functionality, helping safeguard generators, cables, busbars and connected electrical equipment.

The withdrawable E1.2N platform is particularly useful in switchboards where serviceability, protection selectivity and operational flexibility are important. The moving circuit breaker interfaces with a compatible separate fixed part and can be withdrawn for inspection or maintenance while the fixed switchboard connections remain installed.

Typical Applications

• Generator protection and generator switchboards.
• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Transformer secondary and incomer protection.
• Critical distribution feeder protection.
• Commercial, infrastructure and process-industry switchgear.