1SDA071196R1 ABB E4.2N 4000 Ekip Touch LSIG 3p F HR Air Circuit Breaker

Why Choose the ABB E4.2N 4000 Ekip Touch LSIG 3p F HR Air Circuit Breaker?

The ABB E4.2N 4000 Ekip Touch LSIG 3p F HR, order code 1SDA071196R1, is a high-performance air circuit breaker (ACB) designed for protection, control and isolation in high-current low-voltage electrical distribution systems. Part of the ABB SACE Emax 2 series, this fixed three-pole circuit breaker combines a 4000 A rated current with the advanced Ekip Touch LSIG solid-state electronic trip unit.

The Ekip Touch LSIG release provides long-time overload, short-time delayed short-circuit, instantaneous short-circuit and earth-fault protection. Its configurable electronic protection functions and touchscreen interface support effective protection coordination, allowing engineers to supervise and configure protection parameters for demanding power distribution applications.

The E4.2N performance level provides an ultimate short-circuit breaking capacity of 66 kA, while the breaker is rated for operation up to 690 V AC. This version features a fixed three-pole construction with rear horizontal terminals, four auxiliary contacts and circuit-breaker open/closed position indication.

Key Advantages

• High-performance ABB SACE Emax 2 air circuit breaker for demanding low-voltage power distribution.
• 4000 A rated current for substantial high-current electrical installations.
• 66 kA ultimate short-circuit breaking capacity.
• Advanced Ekip Touch LSIG electronic trip unit for configurable circuit protection.
• Integrated earth-fault protection alongside overload and short-circuit protection.
• LSIG functionality supports selective coordination and effective fault isolation.
• Fixed three-pole construction with rear horizontal terminals.
• Four auxiliary contacts for integration with control, signalling and monitoring systems.

Key Features

• ABB SACE Emax 2 E4.2N series.
• 4000 A rated current.
• Three-pole fixed air circuit breaker.
• Ekip Touch LSIG solid-state electronic protection release.
• Long-time overload (L), short-time delayed (S), instantaneous short-circuit (I) and earth-fault (G) protection.
• 66 kA short-circuit breaking capacity.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• Ekip Touch interface for electronic protection configuration and supervision.
• Rear horizontal main circuit connections.
• Four auxiliary contacts with circuit-breaker open/closed position indication.

Advanced Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax 2 provide protection, switching and isolation for major low-voltage electrical distribution circuits. With a 4000 A current rating and 66 kA short-circuit breaking performance, the E4.2N is designed for substantial main distribution systems where dependable high-current protection is required.

The Ekip Touch LSIG electronic trip unit combines long-time overload, short-time delayed, instantaneous short-circuit and earth-fault protection. Configurable protection functions support selective coordination with other protective devices, helping isolate faults while maintaining continuity on unaffected sections of the electrical distribution system.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• Industrial power distribution and manufacturing facilities.
• High-current main incomer applications.
• Transformer secondary circuit protection.
• Commercial buildings and infrastructure electrical systems.
• Feeder and distribution circuit protection.
• Systems requiring integrated earth-fault protection.
• Data centres and critical power distribution installations.
• OEM switchgear and electrical panel building.