1SDA073126R1 ABB E4.2N 3200 Ekip Touch LSIG 4p WMP Air Circuit Breaker

Why Choose the ABB E4.2N 3200 Ekip Touch LSIG 4p WMP Air Circuit Breaker?

The ABB E4.2N 3200 Ekip Touch LSIG 4p WMP, order code 1SDA073126R1, is a high-performance four-pole air circuit breaker moving part designed for protection, control and monitoring in demanding low-voltage power distribution systems. As part of the advanced ABB SACE Emax 2 series, it combines a 3200 A rated uninterrupted current with the intelligent Ekip Touch LSIG electronic trip unit.

The Ekip Touch LSIG release provides comprehensive long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection. Its touch-sensitive display enables straightforward configuration of protection parameters, while advanced electronic monitoring helps support selective and dependable protection across industrial, commercial and infrastructure electrical networks.

This E4.2N configuration features a 3200 A rated uninterrupted current, four-pole construction and a rated operational voltage up to 690 V AC. The N performance level provides an 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, while the withdrawable moving-part design facilitates maintenance and servicing.

Key Advantages

• High-performance ABB SACE Emax 2 air circuit breaker for demanding power distribution systems.
• 3200 A rated uninterrupted current for high-current electrical installations.
• Four-pole configuration for switching and protecting three phases and neutral.
• Advanced Ekip Touch LSIG electronic trip unit with touch-sensitive display.
• LSIG protection covers overload, selective short-circuit, instantaneous short-circuit and earth-fault conditions.
• 66 kA ultimate short-circuit breaking capacity across major low-voltage operating levels up to 690 V AC.
• 66 kA rated short-time withstand current for 1 s.
• Withdrawable moving-part construction supports efficient inspection, maintenance and replacement.

Key Features

• ABB SACE Emax 2 E4.2N frame.
• 3200 A rated uninterrupted current.
• Four-pole construction.
• Ekip Touch LSIG electronic protection release.
• Long-time overload protection (L).
• Short-time selective short-circuit protection (S).
• Instantaneous short-circuit protection (I).
• Integrated earth-fault protection (G).
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 50/60 Hz operating frequency.
• Adjustable electronic protection settings via touch-sensitive display.
• Withdrawable moving part for compatible Emax 2 switchgear installations.

Advanced LSIG Protection for High-Current Distribution

The ABB Ekip Touch LSIG electronic trip unit provides adjustable protection against the principal electrical faults encountered in low-voltage distribution systems. Long-time, short-time and instantaneous functions protect against overloads and short circuits, while integrated earth-fault protection helps detect and interrupt potentially damaging current flowing to earth.

The E4.2N frame is designed for high-current distribution applications where continuity of service, protection selectivity and dependable fault interruption are essential. Its 66 kA short-circuit performance and withdrawable construction make it well suited to maintainable switchboards in industrial plants, infrastructure facilities and other critical electrical installations.

Typical Applications

• High-current industrial power distribution switchboards.
• Main incoming and outgoing feeder protection.
• Transformer secondary distribution systems.
• Manufacturing and process industry installations.
• Data centres and critical power infrastructure.
• Commercial buildings and large infrastructure projects.
• Utility and energy distribution installations.
• Low-voltage networks requiring selective short-circuit and earth-fault protection.