1SDA071772R1 ABB E4.2N 3200 Ekip Dip LSI 4p F HR Air Circuit Breaker 3200 A

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

The ABB E4.2N 3200 Ekip Dip LSI 4p F HR, order code 1SDA071772R1, 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 LSI solid-state electronic release for long-time overload, selective short-time and instantaneous short-circuit protection.

The Ekip Dip LSI release provides configurable 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 and instantaneous short-circuit protection from 1.5–15 × In, allowing the breaker to be coordinated with other protective devices throughout the electrical distribution system.

The E4.2N performance level provides a rated ultimate short-circuit breaking capacity of 66 kA at 380–690 V AC and a rated short-time withstand current of 66 kA for 1 s. Its four-pole fixed construction, rear horizontal terminals and four auxiliary change-over contacts make the 1SDA071772R1 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 LSI electronic trip unit with straightforward DIP-switch adjustment.
• Provides long-time, selective short-time and instantaneous short-circuit protection.
• 66 kA Icu at 380–690 V AC for robust short-circuit protection across common low-voltage system voltages.
• 66 kA Icw for 1 s supports selective protection coordination in high-current distribution systems.
• Fixed construction with rear horizontal terminals for permanent switchboard integration.
• Four auxiliary change-over contacts support breaker status signalling and control-system 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 LSI solid-state electronic release.
• Adjustable long-time overload protection.
• Adjustable selective short-time short-circuit protection.
• Adjustable instantaneous short-circuit 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.
• 66 kA Icu at 380–690 V AC.
• 66 kA Icw for 1 s.
• Rear horizontal main terminals with bolted main-circuit connection.
• Four auxiliary change-over contacts.
• Open/closed circuit-breaker position indication.
• Optional motor-drive capability.

Selective High-Current Protection for Power Distribution

ABB SACE Emax 2 air circuit breakers provide switching, isolation and 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 reliable fault interruption is essential.

The Ekip Dip LSI release combines long-time overload protection with selective short-time and instantaneous short-circuit protection. Its DIP-switch configuration provides a straightforward method of setting protection thresholds, while short-time protection enables coordinated distribution-system designs that can help isolate downstream faults without unnecessarily interrupting unaffected circuits.

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 distribution systems requiring selective short-circuit coordination.