1SDA071776R1 ABB E4.2N 3200 Ekip Touch LSIG 4P Air Circuit Breaker

Why Choose the ABB E4.2N 3200 Ekip Touch LSIG 4P Air Circuit Breaker?

The ABB 1SDA071776R1 is a high-performance SACE Emax 2 E4.2N air circuit breaker (ACB) rated at 3200 A, designed for protection and switching in demanding low-voltage power distribution systems. Part of the ABB SACE Emax 2 series, this fixed four-pole circuit breaker combines dependable short-circuit performance with the advanced Ekip Touch LSIG electronic trip unit.

The E4.2N 3200 incorporates the Ekip Touch LSIG solid-state release, providing long-time overload, short-time selective, instantaneous short-circuit and earth-fault protection. Its touch-sensitive interface enables straightforward configuration of protection parameters while supporting the monitoring and management requirements of modern industrial and commercial electrical networks.

With a rated uninterrupted current of 3200 A, a rated operational voltage of 690 V AC and an ultimate short-circuit breaking capacity of 66 kA across key low-voltage operating voltages up to 690 V AC, the E4.2N provides robust protection for high-current installations. This version is a fixed, four-pole breaker with rear horizontal terminals and is fitted with four auxiliary changeover contacts plus circuit-breaker open/closed position indication.

Key Advantages

• High-performance ABB SACE Emax 2 air circuit breaker for high-current power distribution.
• 3200 A rated uninterrupted current for demanding electrical installations.
• Four-pole configuration for comprehensive switching and protection.
• Advanced Ekip Touch LSIG electronic trip unit with touch-sensitive configuration interface.
• LSIG functionality provides overload, selective short-circuit, instantaneous and earth-fault protection.
• 66 kA ultimate short-circuit breaking capacity across key operating voltages up to 690 V AC.
• 66 kA short-time withstand current for 1 s for effective selective coordination.
• Fixed installation with rear horizontal terminals for switchboard integration.

Key Features

• ABB SACE Emax 2 E4.2N frame.
• 3200 A rated uninterrupted current.
• Four-pole construction.
• Fixed circuit-breaker execution.
• Rear horizontal terminals.
• Ekip Touch LSIG solid-state electronic protection release.
• Adjustable long-time overload protection.
• Adjustable short-time selective protection.
• Adjustable instantaneous short-circuit protection.
• Integrated earth-fault protection.
• Touch-sensitive interface for protection configuration.
• Four auxiliary changeover contacts and breaker open/closed position indication.

Comprehensive LSIG Protection for High-Current Distribution

ABB SACE Emax 2 air circuit breakers protect low-voltage distribution networks against overload, short-circuit and earth-fault conditions while providing dependable switching and isolation. The E4.2N platform combines a substantial 3200 A current rating with 66 kA breaking and short-time withstand performance, making it suitable for high-power industrial and infrastructure distribution systems.

The Ekip Touch LSIG release provides long-time overload (L), short-time selective (S), instantaneous short-circuit (I) and earth-fault (G) protection. Adjustable protection parameters support selective coordination between upstream and downstream devices, while the touch interface simplifies configuration for complex low-voltage electrical networks.

Typical Applications

• Main low-voltage distribution switchboards.
• Industrial power distribution systems.
• Manufacturing and process plants.
• Commercial and infrastructure electrical installations.
• Transformer secondary protection.
• Generator and utility distribution systems.
• High-current feeder protection and switching.
• Critical power distribution networks.