The ABB E4.2N 4000 is a high-capacity low-voltage air circuit breaker designed for superior protection, control, and reliability in large-scale power systems. Rated at 4000A with a breaking capacity of 66kA, this breaker is ideal for critical infrastructure and industrial power distribution. Equipped with the Ekip Dip LI trip unit, it offers precise long-time and instantaneous protection, along with high reliability and fixed mounting design.

Key Features:

• Rated Current: 4000A

• Frame Size: 4000A (E4.2S)

• Breaking Capacity: 66kA at 415V AC

• Poles: 3P (Three Pole)

• Trip Unit: Ekip Dip LI (Long-Time & Instantaneous protection)

• Mounting Type: Fixed (F)

• High Reliability (HR): Built for long-lasting, dependable performance

• Compact & Powerful: High breaking capacity in a compact footprint

• Smart Integration: Compatible with advanced monitoring and control systems

Ideal for large industrial facilities, data centers, and critical power infrastructure.