1SDA071150R1 ABB E4.2N 3200 Ekip G Hi-Touch LSIG 3p FHR Air Circuit Breaker

Why Choose the ABB E4.2N 3200 Ekip G Hi-Touch LSIG 3p FHR Air Circuit Breaker?

The ABB E4.2N 3200 Ekip G Hi-Touch LSIG 3p FHR, order code 1SDA071150R1, is a high-current SACE Emax 2 air circuit breaker (ACB) engineered for advanced protection, control and monitoring of low-voltage generator and power distribution systems. Rated at 3200 A, this three-pole fixed circuit breaker combines the E4.2N frame with ABB's sophisticated Ekip G Hi-Touch LSIG solid-state electronic trip unit.

The Ekip G Hi-Touch LSIG release provides comprehensive long-time overload (L), short-time short-circuit (S), instantaneous short-circuit (I) and earth-fault (G) protection together with advanced functionality for generator applications. This combination supports accurate fault protection, selective coordination and detailed supervision in installations where continuity, protection performance and electrical system management are important.

This configuration is a fixed three-pole breaker with rear horizontal (HR) terminals. The E4.2N performance level provides an ultimate short-circuit breaking capacity of 66 kA at 400/415 V AC and a rated short-time withstand current of 66 kA for 1 s, making the 1SDA071150R1 suitable for high-current generator switchboards, main incomers, distribution feeders and critical low-voltage installations.

Key Advantages

• High-capacity 3200 A SACE Emax 2 air circuit breaker for demanding low-voltage power systems.
• Advanced Ekip G Hi-Touch LSIG electronic trip unit for comprehensive protection and supervision.
• 66 kA ultimate short-circuit breaking capacity at 400/415 V AC.
• 66 kA short-time withstand current for 1 s supports selective high-current distribution architectures.
• LSIG protection covers overload, short-time short-circuit, instantaneous short-circuit and earth-fault conditions.
• Ekip G functionality is designed for advanced generator and power-system applications.
• Three-pole fixed configuration with rear horizontal terminals for switchboard integration.
• Supplied with four auxiliary contacts and circuit-breaker open/closed position indication.

Key Features

• ABB SACE Emax 2 E4.2N frame.
• 3200 A rated uninterrupted current.
• Three-pole configuration.
• Fixed mounting version.
• Ekip G Hi-Touch LSIG solid-state electronic release.
• Long-time overload (L), short-time short-circuit (S), instantaneous short-circuit (I) and earth-fault (G) protection.
• 66 kA Icu at 400/415 V AC.
• 66 kA Icw for 1 s.
• Rated operational voltage up to 690 V AC.
• Rear horizontal (HR) main terminals.
• Four auxiliary change-over contacts.
• Integrated circuit-breaker open/closed position indication.

Advanced Generator and High-Current Distribution Protection

Air circuit breakers such as the ABB SACE Emax 2 provide switching, isolation and fault protection for high-current low-voltage electrical networks. The E4.2N frame combines a substantial 3200 A current rating with 66 kA short-circuit breaking and one-second withstand capability, making it suitable for main incomers, generator circuits and major distribution feeders.

The Ekip G Hi-Touch LSIG trip unit combines adjustable overload, short-time, instantaneous and earth-fault protection with advanced capabilities intended for generator applications. This allows the breaker to support sophisticated power distribution architectures where protection selectivity, system supervision, continuity of supply and intelligent electrical management are important requirements.

Typical Applications

• Generator protection and generator distribution switchboards.
• Industrial low-voltage main distribution systems.
• Main incomer and high-current feeder protection.
• Power generation and standby power installations.
• Manufacturing and process-industry switchboards.
• Data centres and critical electrical infrastructure.
• Transformer secondary distribution systems.
• Power systems requiring LSIG protection, earth-fault protection and advanced electrical supervision.