1SDA073136R1 ABB E4.2S 3200 Ekip Touch LSIG 4p WMP Air Circuit Breaker

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

The ABB E4.2S 3200 Ekip Touch LSIG 4p WMP, order code 1SDA073136R1, is a high-performance four-pole air circuit breaker moving part designed for advanced protection, control and monitoring in demanding low-voltage power distribution systems. Part of the 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 selective short-circuit, instantaneous short-circuit and earth-fault protection. Its touch-sensitive display provides convenient access to protection settings and operating information, supporting accurate configuration, selectivity and dependable protection throughout complex electrical distribution networks.

This E4.2S configuration features a 3200 A rated uninterrupted current, four-pole construction and a rated operational voltage up to 690 V AC. The S performance level provides an ultimate short-circuit breaking capacity of 85 kA at 400/415/440 V AC and 66 kA at 500–690 V AC, while its withdrawable moving-part construction facilitates inspection, servicing and maintenance.

Key Advantages

• High-performance ABB SACE Emax 2 air circuit breaker for demanding low-voltage power distribution.
• 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.
• 85 kA ultimate short-circuit breaking capacity at 400/415/440 V AC.
• 66 kA rated short-time withstand current for 1 s.
• Withdrawable moving-part design supports efficient inspection, maintenance and replacement.

Key Features

• ABB SACE Emax 2 E4.2S 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.
• 85 kA Icu at 400/415/440 V AC.
• Four auxiliary contacts with circuit-breaker open/closed position indication.
• 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 provides an additional protective function against potentially damaging current flowing to earth.

The E4.2S frame is engineered for high-current installations requiring dependable fault interruption, protection selectivity and continuity of service. Its combination of 85 kA breaking capacity at 400/415/440 V AC, 66 kA short-time withstand capability and withdrawable construction makes it particularly suitable for maintainable industrial and infrastructure switchboards.

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.