1SDA072493R1 ABB E4.2N 3200 Ekip Dip LSIG 3p WMP Air Circuit Breaker 3200 A

Why Choose the ABB E4.2N 3200 Ekip Dip LSIG 3p WMP Air Circuit Breaker?

The ABB E4.2N 3200 Ekip Dip LSIG 3p WMP, order code 1SDA072493R1, is a high-performance three-pole air circuit breaker (ACB) from the ABB SACE Emax 2 range, designed for reliable protection and switching in high-current low-voltage power distribution systems. With a 3200 A rated current and ABB's electronic Ekip Dip LSIG trip unit, it provides long-time, short-time, instantaneous and earth-fault protection.

The E4.2N combines high current-carrying capacity with dependable short-circuit performance for industrial, commercial and infrastructure installations. This N-performance model provides a rated ultimate short-circuit breaking capacity of 66 kA at 440 V AC together with a rated short-time withstand current of 66 kA for 1 s, supporting robust protection and selective coordination within low-voltage distribution networks.

The 1SDA072493R1 is the moving part of a withdrawable circuit breaker and features a three-pole configuration. Its Ekip Dip LSIG electronic release combines overload, selective short-circuit, instantaneous short-circuit and earth-fault protection, making this breaker particularly suitable for main switchboards and distribution systems where comprehensive circuit protection and serviceable withdrawable construction are required.

Key Advantages

• High-capacity 3200 A air circuit breaker for low-voltage power distribution.
• 66 kA ultimate breaking capacity at 440 V AC for demanding electrical installations.
• Advanced Ekip Dip LSIG electronic protection with long-time, short-time, instantaneous and earth-fault functions.
• Three-pole withdrawable configuration supports convenient switchgear servicing and maintenance.
• High 66 kA short-time withstand current for 1 s supports selective protection architectures.
• Part of the proven ABB SACE Emax 2 air circuit breaker platform.

Key Features

• ABB SACE Emax 2 E4.2N series.
• 3200 A rated uninterrupted current.
• Three-pole configuration.
• Ekip Dip LSIG solid-state electronic release.
• Long-time overload protection.
• Short-time selective short-circuit protection.
• Instantaneous short-circuit protection.
• Integrated earth-fault protection.
• 66 kA Icu at 440 V AC.
• 66 kA Icw for 1 s.
• Withdrawable moving-part configuration for compatible SACE Emax 2 switchgear.
• Four auxiliary contacts for integration with control and indication circuits.

Comprehensive Protection for High-Current Power Distribution

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 is designed for major distribution circuits where dependable current carrying, high short-circuit withstand capability and coordinated protection are required.

The Ekip Dip LSIG electronic trip unit provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection. These functions enable the 1SDA072493R1 to protect against multiple electrical fault conditions while supporting selective coordination between protective devices throughout a distribution network.

Typical Applications

• Main low-voltage electrical switchboards.
• Industrial power distribution systems.
• Manufacturing and process plant switchgear.
• Commercial and infrastructure power distribution.
• Transformer and installation protection.
• High-current incoming and distribution feeders.
• Selective protection systems requiring LSIG functionality.
• Applications requiring integrated earth-fault protection.
• Withdrawable switchgear assemblies requiring serviceable high-current circuit protection.