1SDA071773R1 ABB E4.2N 3200 Ekip Dip LSIG 4p F HR Air Circuit Breaker 3200 A

Why Choose the ABB E4.2N 3200 Ekip Dip LSIG 4p F HR Air Circuit Breaker?

The ABB E4.2N 3200 Ekip Dip LSIG 4p F HR, order code 1SDA071773R1, is a high-current four-pole air circuit breaker (ACB) from the ABB SACE Emax 2 range. Designed for fixed installation in demanding low-voltage power distribution systems, it combines a 3200 A rated uninterrupted current with an Ekip Dip LSIG solid-state electronic release for long-time overload, selective short-time, instantaneous short-circuit and earth-fault protection.

The Ekip Dip LSIG release provides comprehensive adjustable electronic protection using straightforward DIP-switch settings. Long-time protection is adjustable from 0.4–1 × In, selective short-circuit protection from 0.6–10 × In, instantaneous protection from 1.5–15 × In and earth-fault protection from 0.1–1 × In, supporting effective coordination throughout the electrical distribution system.

The E4.2N performance level provides a rated ultimate short-circuit breaking capacity of 66 kA across operating voltages from 380–690 V AC, together with a rated short-time withstand current of 66 kA for 1 s. Its four-pole fixed construction, rear horizontal terminals and four auxiliary contacts make the 1SDA071773R1 a robust solution for high-current industrial, commercial and infrastructure switchboards.

Key Advantages

• High-current ABB SACE Emax 2 air circuit breaker for demanding low-voltage distribution systems.
• 3200 A rated uninterrupted current for substantial industrial and commercial electrical loads.
• Four-pole configuration for simultaneous switching of three phases and neutral.
• Ekip Dip LSIG electronic trip unit with straightforward DIP-switch adjustment.
• Provides long-time, selective short-time, instantaneous and earth-fault protection.
• 66 kA Icu at 380–690 V AC provides consistent short-circuit performance across common low-voltage system voltages.
• 66 kA Icw for 1 s supports selective protection coordination in high-current distribution systems.
• Adjustable 0.1–1 × In earth-fault protection adds protection against ground-fault conditions.
• Fixed construction with rear horizontal terminals for permanent switchboard integration.

Key Features

• ABB SACE Emax 2 E4.2N series.
• 3200 A rated uninterrupted current.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 50 / 60 Hz operating frequency.
• Four-pole fixed air circuit breaker.
• Ekip Dip LSIG solid-state electronic release.
• Adjustable long-time overload protection.
• Adjustable selective short-time short-circuit protection.
• Adjustable instantaneous short-circuit protection.
• Adjustable earth-fault protection.
• Long-time protection adjustment from 0.4–1 × In.
• Short-time protection adjustment from 0.6–10 × In.
• Instantaneous protection adjustment from 1.5–15 × In.
• Earth-fault protection adjustment from 0.1–1 × In.
• 66 kA Icu at 380–690 V AC.
• 66 kA Icw for 1 s.
• Rear horizontal main terminals.
• Four auxiliary contacts and circuit-breaker open/closed position indication.

Comprehensive LSIG Protection for High-Current Distribution

ABB SACE Emax 2 air circuit breakers provide switching, isolation and electronic protection for high-current low-voltage distribution circuits. With its 3200 A rated uninterrupted current, 66 kA ultimate short-circuit breaking capacity and 66 kA short-time withstand capability for 1 s, the E4.2N 3200 is designed for substantial incoming supplies and distribution feeders where dependable fault interruption and system selectivity are essential.

The Ekip Dip LSIG release combines long-time overload, selective short-time, instantaneous and earth-fault protection within one electronic trip unit. Adjustable DIP-switch settings provide a straightforward method of configuring protection thresholds, helping a correctly engineered distribution system protect cables, switchgear and connected equipment while coordinating operation between upstream and downstream protective devices.

Typical Applications

• Low-voltage main distribution switchboards.
• High-current incoming supply circuits.
• Industrial electrical distribution systems.
• Manufacturing and process plants.
• Large commercial building power distribution.
• Transformer secondary protection.
• High-current outgoing distribution feeders.
• Infrastructure and utility installations.
• Power systems requiring integrated earth-fault protection and selective coordination.